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NYC EVENTS FOR MAY 2019 
 ----------------------
 John Pazmino 
 NYSkies Astronomy Inc  
 nyskies@nyskies.org  
 www.nyskies.org 

    The following astronomy activities in the commuting ring enclosing 
New York City are operated by various organizations. A few cultural  
tems of special importance to City astronomers are also included.  
    Altho NYC Events confirms the listed items, they are subject to 
change by their sponsors. Check with their contacts. Let the sponsor  
know that you learned of its event thru NYC Events.  
    Frequently asked questions and explanation of NYC Events is at 
'www.nyskies.org/nyc-faq.htm'.  
    You may ask for previous NYC Events thru 'nyskies@nyskies.org' 
because only the current issue is in the website. It is replaced by  
next month's issue.  
    For events which missed NYC Events, check the NYSkies Yahoogroup 
forum. Join NYSkies by visiting 'www.nyskies.org/yahoo.htm' and 
picking either the email or website option.  
    All hours are Eastern Daylight Savings Time (UT - 4h). 

General notes 
 -----------                           / 
    'whole City' means the event has no specific or dedicated place. 
It may be enjoyed from the whole NYSkies territory or at a number of 
individual places. Celestial events are typicly 'whole City' events.  
c    'all day' means the event is continuous or repeating during the 
open hours of the host facility. Facilities may have limited hours per 
day or days per week. Check with the event contacts.  
    'adv regn reqd',for 'advance registration required/requested' 
means that the event requires or requests signing up before the event. 
You must have your ticket in hand at the gate. There could be a 
deadline some days before the event, after which no more signups are 
accepted. Check with the event contact for specifics. 
    Prices cited are the 'rack rate'. You could qualify for discounts 
 As may be offered by the sponsor. Besides the base price there may be 
noptional extra fees to consider. 

Current Month calendar  
 --------------------
  Plain dates are in current month;  
  -, previous month; +, next month. 
  #, NYSkies Astronomy Seminar 
  Moon phase: .NM., .FQ), (FM), (LQ.  
  Sunset is noted for each Saturday  
  ---------------------------------
  Sun   Mon   Tue   Wed   Thu   Fri   Sat  sunset 
  ---   ---   ---   ---   ---   ---   ---  ------
  -28   -29   -30     1     2     3#   .4. 19:55
   5      6     7     8     9    10   .11) 20:02
  12     13    14    15    16    17#  (18) 20:09
  19     20    21    22    23    24    25  20:15
 (26.    27    208   29    30    31    +1  20:21
 -----------------------------------------------

Index  of Events  
/ ------------- 
 * = NASA-JPL Night Sky Network affiliate  
 Date = entry in 'list of events' section 
 '0' = entry in 'ongoing and continuing events' section 
 'S/O',= entry in 'skipped, Sep/Oct resumption' section 
  'M/A' = entry in 'skipped, Mar/Apr resumption' secrion // '???' = 
entry in 'skipped, uncertain resumption' seciton 
 ------- -----------------------------------------------
    BROOKLYN - BK 
  Astronomy on Tap  - - - - 15 
  Canarsie line curtailment  0 
 *Floyd Bennett Field - - - 10 
  NYU School of Engineering 10 
  Secret Science Club - - -  0 

    CONNECTICUT - CT 
 *A S of Gtr Hartford   - - 15 
  Astro Soc of Greenwich  - AUT 
 *Astro Soc of New Haven  - 28 
  Bowman Observatory  - - -  1, 15 
 *Litchfield Hills AAC mtg  10 
 *Litchfield Hills starvg - 24 
 *McCarthy Observatory  - - 11 
  New Pond Farm - - - - - - ??? 
  Stamford Observatory  - -  3, 10, 17, 24, 31     
 *Van Vleck Obsy (ASGH) - - 11 
  Van Vleck Obsy (WU) - - -  1, 8, 15, 22, 29 
  Western CT St Univ Obsy - 11, 18 
 *Westport Astro Soc mtg  - 21 
 *Westport Astro Soc starvg  1, 8, 15, 22, 29   
  -------------------------
  Boothe Meml Astro Soc - 203-377-9933, 
    www.facebook.com/Boothe-Memorial-Astronomical-Society 

    LONG ISLAND - LI 
 *Amateur Observers Soc - -  5 
 *Amat Obsrs Soc starviewing 0 
  Amer Instt Aero & Astro -  8 
  Astro Soc of Long Island   1, 8, 15, 22, 29 
  Bertucci's Restaurant - - 15
  Brookhaven National Lab -  1, 3 
  Custer Institute  - - - -  4, 11, 18, 25    
  Hofstra Univ Obsy - - - - AUT 
  Montauk Observatory - - -  8, 11 
  SUNY Stony Brook - -  - -  3 
 *Susan Rose Observatory  -  4, 11, 18, 25      
 
    MANHATTAN - MH  
 *Amat Astro Assn starvwg -  0 
 *Amat Astro Assn lecture - AUT 
  Amer Instt Archarology  - AUT 
  Apolllo-50th webcasts - -  2, 16, 30 
  Ctr for Atmosp Ocean Sci  AUT 
  Ctr for Science & Society AUT 
  Central Pk (Great Lawn) -  3,4,5,10,11,12,17,18,19,24,25,26,31 
  City of Science - - - - -  2 
 *Columbia Univ Obsy  - - - 10, 24 
  Cornelia Street Cafe'   - AUT 
  Earth Institute - - - - - ???
  Fleet Week  - - - - - - - 22-28 
  Good Housekeeping lab   - 10 
  Gullivarr's Gate- - - - -  0
  Instt Stud Ancnt World  - AUT
  Intrepid AstroCafe' - - - AUT 
  Intrepid Astro Night  - - ??? 
 *Inwood Astronomy Project   4, 11, 18, 25,  
  Manhattanhenge  - - - - - 29-31  
  measles epidemic - - - - - 1
  Memorial Day  - - - - - - 27 
  Milky Way spring season -  1-Jun 30 
  Natl Musm of Mathematics   1 
  NY Academy of Sciences  - ???
  NYC-H2O - - - - - - - - -  0
  NY History of Science - - AUT 
  New York Map Society  - - aut 
  NYU Astrop & Relatvty - - AUT 
 *NYSkies Astronomy Seminar  3, 17 
  omega Centauri challenge    1-31 
  SciCafe'  - - - - - - - -  1 
  Shakespeare & Co  - - - - 20 
  Simons Foundation - - - -  1 
  tap-&-go transit fare - -  5 
 *Top of the laen - - - - -  3,4,5,10,11,12,17,18,19,24,25,26,31  
  TriState computer fair --  0 
  United Nations - - - - -   2
  Urban Park Rangers  - - -  0 
  Weekend Walks - - - - - -  1-mid Dec 
  World Science Festival  - 22-Jun 2 
  WTC station closings  - -- 0 
 ---------------------------
 Ctr for Space Sci Edu - - info@nyccsse.org, www.nyccsse.org,  
            212-608-6164 n 

    METRO-NORTH - NY  
  Lamont-Doherty Obsy - - - AUT 
  Mid-Hudson Astro Assn - -  3 
  Ramapo Challenger Ctr - - 19 
  Rockland Astro Club - - - 18 
  Vassar College Obsy - - -  1, 8, 15, 22, 29   
  Ward Pound Ridge  - - - - 25 
  Westchester Amat Astro  -  3 

    NEW JERSEY - NJ  
  A A A of Princeton  - - - 14        
 *Amat Astro Inc meeting  -  3, 10, 24 
  *Amat Astro Inc lecture - 17 
  A S of Toms Rv Area - - - 10 
  Irons Irons Lecture - - -  4 
  Morris Musm Astro Soc - -  9 
  New Jersey Astro Assn - - 25 
  North Bergen Viaduct  - -  0 
  No Jersey Astro Gp mtg  -  8 
  No Jersey Astro Gp starvg   2, 9, 16, 23, 30 
  Peyton Observarory  - - -      1
  Plasma Physics Lab  - - -  3, 17 
  Rutgers Univ Astro Collqm  1 
  Rutgers Univ Astro Semnr   2 
 *S*T*A*R - - - - - - - - -  2 
  Schommer Observatory  - -  9, 16 
 *Sheep Hill Astro Assn - -  3 
 *Sheep Hill Observatory  - 17 
 *Utd Astro Clubs of NJ - -  4, 11, 18, 25 
  Washington Xing St Pk - -  3, 10, 17, 24, 31 
  WTC station closings  - -  0 
  ---------------------------
  Dark Sky Observers - www.users.nac.net/gburke/club  
  McDowell Obsy - mec.rst2.edu, 201-460-8300 
  Montclair Telescope Club - 973-948-5284,,    
        users.erols.com/njastro/orgs/mtc.htm 
  NW Jersey Amat Astro - www.nwjaa.org, info@nwjaa.org 
  Passaic Co Astro Assn - www.users.nac.net/gburke/PCAA, 973-523-0024 
 *Raritan Vy Co Coll Plm  - www2.raritanval.edu/planetarium  
   Skyland Stargazers  -  skylandstargazers.tripod.com 

s    QUEENS - QN  
  Alley Pond Park - - - - - AUT 
  York College Observatory   8 

    REST OF WORLD 

     STATEN ISLAND - SI 
  Coll of Staten Is Obsy  -               4, 11
  Great Kills Park  - - - -  4 
  Staten Is Community TV  -  3, 10, 17, 24, 31 
  tap-&-go transit fare - -  5 

    THE BRONX - BX 
 ============================= 

Ongoing and continuing events 
  --------------------------
    all day - H&M WTC line - MH - WTC station closings 
        Thru late 2020. World Trade Center station closes every 
        weekend to repair tunnels under Hudson River ruined by 
        hurricane Sandy. Station closes at 00h on each Saturday,
        reopens at 05h on following Monday. WTC-bound trains turn at 
        Exchange Pl station. For service to WTC, use 33 St line to 
        connect to NYC subways. www.panynj.gov 
    all day - H&M WTC line - NJ - WTC station closings 
        Thru late 2020. World Trade Center station closes every 
        weekend to repair tunnels under Hudson River ruined by 
        hurricane Sandy. Station closes at 00h on each Saturday, 
        reopens at 05h on following Monday. WTC-bound trains turn at 
        Exchange Pl station. For service to WTC, use 33 St line to 
        connect to NYC subways. www.panynj.gov 
    all day - North Brgen Viaduct - NJ - road closings and rebuild 
        Thru end 2020.  One lane in each direction is closed during 
        major rebuild of viaduct on NJ495 between NJ Tpk and Lincoln 
        Tnl. Buses have priority on remaining lanes. On-off ramps for 
        local street close from time to time.  www.restorenj495.com 
    all day - Canarsie line - BK - night and weekend slowdown 
        Thru mid 2020. Curtailed service  on weekdays 22h to 05h on 
        next day. Also on weekendsFri  22h to Mon 05h. Trains run in 
        only one tunnel, taking turns in each direction to allow 
        reapirs for hurricane Sandy damage. Service may change 
        according as progress of work.  www.mta.info. 
     all day - whole island - LI - clearsky starviewing  
        VARIOUS PLACES, DATES, HOURS; INQUIRE AT CONTACT  
        Amat Obsrs Soc. Sessions convene in parks usually at dusk. 
        Occasional daytime sunviewing. Free. Cancelled for clouds. 
         www.aosny.org, suerose@optonline.net 
    all day - whole City - MH - cultural tour 
        VARIOUS LOCATIONS AND TIMES; INQUIRE AT CONTACT 
        NYC-H2O. Walk, bike, ride thru history and culture of NYC 
        muwater system facilities and natural waterways in and near 
        the City.  Events are pay orfree, adn regn reqd. Bike tours 
        need own bike. www.nych2o.org, 
        matt@nych2o.org 
    all day - whole City - MH - clearsky starviewing  
        VARIOUS PLACES, DATES, HOURS; INQUIRE AT CONTACT  
        Amat Astro Assn. Sessions convene in parks usually at dusk. 
        Occasional daytime sunviewing. Free. Cancelled for clouds. 
          president@aaa.org, 718-522-5014, www.aaa.org  
    all day - whole City - MH - clearsky starviewing  
        VARIOUS PLACES, DATES, HOURS; INQUIRE AT CONTACT  
        Jupiter Joe's Sidewalk Astronomy. Sessions convene in parks 
        usually at dusk. Occasional daytime sunviewing. Free. `       
        Cancelled for clouds.  www.jupiterjoesastronomy.org, 
        jupiyerjoesastronomy@gmail.com 
    all day - Gullivaer's Gate - MH - cultural exhibit 
        indef duration. 216 W 44 St, 7/8 Av. Opened in mid April 2017 
        for preview. Miniature models of landmarks and important 
        structures from around the world. Rooms arranged by quarter of 
        world and for New York City. $36, timed ticket, adv regn reqd. 
        Optional cost for stereopint of visitor into figurine placed 
        at desired item in exhibit. www.gulliversgate.com. 
    all day - whole City - MH - cultural tours & lectures 
        VARIOUS PLACES, DATES, HOURS; INQUIRE AT CONTACT  
        Urban Park Rangers. Tours of parks, landmarks, nabes, hoods. 
        Lectures on history and culture of NYC. Program varies each 
        month. Free. www.nyc.gov/parks  
    10:00 - whole City - MH - Tri-State Computer Fair 
        VARIOUS LOCATIONS, GENERALLY ON SUNDAYS 
        Source of computer systems, software, components, accessories. 
        $7. www.tri-statefairs.com, 718-227-5586 
    20:00 - Bell House - BK - Secret Science Club meeting  
        OCCASIONAL SESSIONS; INQUIRE AT CONTACT 
        149 7 St, 2/3 Av. Lecture and music on various science  
        topics. Free. secretscienceclub.blogspot.com, 718-638-4400, 

ist of Events 
 ------------                                                         
Wed  1 May 
    all day - ehole county - NY - measles epidemic 
       Indefinite duration. Outbreaks of measles in several counties 
        in NYSkies, not just in Rockland County. Williamsbur BK and 
        East Hampton LI are major new seats of disease. Most cases are 
        young patients who were never vaccinated. Most coutnies 
        offer free shots. Some places imposed quarantines or bans 
       against visiting public places . consult health provider for 
        precautions and vaccination. 
    all day - whole City - MH - Weekend Walks street fairs 
        VARIOUS LOCATIONS AND DATES; INQUIRE AT CONTACT 
       Thru mid Dec. NYC Dept of Transptn closes certain steets in 
        all boros on Saturdayss for street fairs. Stores and local 
         orgs offer ntertainment, discount sales, exhibits, food 
        service Free. 
        www.nyc.gov/html/dot/weekendwalks/html/home/home.shtml 
    02:00 - whole City - MH - Milky Way speing season 
        Thru Jun 30. Spring season for sighting Milky Way from within 
        NYC. Requires dark clear sky and thoro knowledge of normal 
        luminous graffiti in sky. Milky Way is in high east sky at 
        about 02:00. www.nyskies.org/articles/pazmino/milky-ny.htm    
   10:30 - Piscataway - NJ - astronomy lecture 
         Colloquium series. Rutgers Univ, Busch Campus, Astro & Phys 
        Lectr Hall. Free. www.physics.rutgers.edu/colloquium, 
        732-445-3974 
+    15:00 - Upton - LI - science lecture 
        Brookhaven Natl Lab.Bldg 510. 'Dark matter dearches with the 
        ATLAS detector of the LHC'. Free, have GI photo ID for  campus 
        security. 631-344-2651, www.bnl.gov/evnts 
     16:00 - Natl Musm of Mathematics - MH - science show 
        Also 19:00. 'Mathematical Encounters'. Free, adv regn 
        reqd. 212-542-0566, www.momath.org, info@momath.org 
    16:15 - Simons Foundation - MH - scinece lecture 
         160 5 Av & 21 St. 'Physics in real and counterfactual 
        universes''s moon titan '. Buffet smacks 16:15, lecture 17:00. 
        Free, adv regn reqd. 646-654-0066,
        ww.simonsfoundation.org 
    19:00 - Amer Musm Natl Hist - MH - SciCafe' show 
        Hall of Ocean Life or hall of planet Earth. Music, drinks, 
        chat with Museum scientists. Free, be 21 or be gone. GI photo 
        ID reqd. 212-769-5100, www.amnh.org/programs 
    20:00 - Westport - CT - clearsky starviewing 
        Westport Astro Soc. Rolnick Obsy.  Free. Cancelled for clouds. 
        www.was-ct.org, 203-227-0925 
    20:00 - Centerport - LI - Astro Soc of LI meeting 
        Vanderbilt Plm. Free. asliastronomy@yahoo.com, 
        www.asliclub.org 
    20:00 - Middletown - CT - clearsky starviewing 
        MEETS ONLY DURING CLASSES; INQUIRE AT CONTACT 
        Wesleyan U, Van Vleck Obsy. Free, cancelled for clouds. 
        860-685-3664, www.wesleyan.edu/astro/events 
     20:30 - Princeton - NJ - clearsky starviewing 
         Princeton Univ, Peyton Hall. Free. Cancelled for clouds 
         www.astro.princeton.edu/observatory/publicobserving.php, 
        jeg@astro.princeton.edu, lee@astro.princeton.edu 
    20:30 - Greenwich - CT - clearsky starviewing 
        Astro Soc of Greenwich. Curtis Elem Schl, Bowman Obsy. Free. 
        Cancelled for clouds. rickbria@optonline.net, 203-415-6762. , 
        astrogreenwich.org 
    21:00 - Poughkeepsie - NY - clearsky starviewing 
        MEETS ONLY DURING CLASSES; INQUIRE AT CONTACT 
        Vassar College, Observatory. Free. Cancelled for clouds. 
        physicsandastronomy.vassar.edu/observatory.html, 
        845-437-7340 
    22:00 - whole City - MH - omega Centauri challenge 
        Thru 31 May. When cluster ome Cen, NGC5128, is on meridian 
        it's about 1 deg alt, yet is observable from within NYC. 
        Requires dark sky and clear horizon. 
        www.nyskies.org/articles/pazmino/51285139.htm. 

Thu  2 May 
    13:30 - Piscataway - NJ - astronomy lecture 
        Seminar series. Rutgers Univ, Serin 401. Free. 732-445-3974, 
        www.physics.rutgers.edu/ast/seminar 
    14:00 - whole City - MH - Apollo-50 webcasts 
        Thru July 2019. Goddard Instt Space Stidies. NASA celebrates 
        50th annivetsary of Apollo lunar exploration project with 
        series of live webcasts on history, futire, culture of the 
        project. View with any Internet device capable of streaming 
        videos. Webcasts at go.nasa.gov/DEEP 
    17:30 - United Nations - MH - cultural cinnema 
        FILM MAY HAVE DISTURBING AND UPSETTING SCENES 
        EcoSoc Hall. Film Screening "Broken Dreams" story of two 
        Jjwish sisters in Nazi-occupied Poland. Mustering and sSeating 
        17:30, showtime 18:30. Free, adv regn reqd. Have GI photo ID 
        for campus security. Info and signup form request at 
        HolocaustRemembrance@un.org 
    18:30 - CUNY Graduate Center - MH -'Ciry of sceince' lecture
        365 5 Av & 34 St, Skylight Room. 'Plants, bioiversity, and the 
        survival of the panet'. Free, adv regn reqd. 
        www.gc.cuny.edu/publicprograms 
    20:00 - Lincroft - NJ - S*T*A*R meeting 
        Brookdale Commty Coll, Mommouth Museum. Free. 
        www.starastronomy.org, s-walters@comcast.net 
    20:00 - Upper Montclair - NJ - clearsky starviewing 
        No Jersey Astro Gp. Montclair St Univ, Richardson Hall.        
        Free, cancelled for clouds. njastro.org, 973-655-7266 
   20:30 - Coll of Staten Is - SI - clearsky starviewing 
        Astrophys Obsy. Free, cancelled for clouds. 718-982-2818, 
        csivc.csi.cuny.edu/supernove7/files/home.html, 
        robbins@mail.csi.cuny.edu,

fri  3 May 
    10:00 - Princeton - NJ - science tour 
        Plasma Physics Lab. Walk thru history and culture of fproject 
        to capture energy from controled hydrogen fusion. Free, adv 
        regn reqd. Have GI photo ID for campus security. 
        www.pppl.gov/events 
+    12:15 - Upton - LI - science lecture 
        Brookhaven Natl Lab.Bldg 510. 'Ultra-light boson dark matter 
        and Event Horizon Telescope observations of M87 '. Free, have 
        GI photo ID for  campus security. 631-344-2651, 
        www.bnl.gov/evnts 
    18:30 - McBurney House - MH - NYSkies Astronomy Seminar  
        DISCUSSION:  FIRST IMAGE OF A BLACK HOLE 
                    (REPEAT TO ACCOMMODATE APRIL HOLIDAY WEEKEND) 
        125 W 14 St, 6/7 Av. Discussion of astronomy topics, show 
        & tell, skywatching reports, news of astro activity in NYSkies 
        territory. Free. nyskies@nyskies.org, www.nyskies.org 
    19:30 - Staten Is Community TV - SI - science show 
        100 Cable Way, Mariners Hr SI. 'Geology forum' Live audience, 
        seating at 19:30, on air at 20:00. Free. www.sictv.org, 
        718-727-1414 
    19:30 - Boonton - NJ - Sheep Hill Astro Assn meeting  
        Boonton Senior Ctr. Free. www.sheephillastro.org, 
        contacts@sheephillastro.org, wwestura@optonline.net 
     19:30 - Stony Brook - LI - astronomy lecture                     SUNY Stony 
Brook, Earth & Spc Sci Hall. Indoor lecture, 
        clearsky starviewing. Free. www.ess.sunysb.edu/astro, 
        631-632-8100, slutterbie@notes.cc.sunysb.edu 
    19:30 - Cranford - NJ - Amat Astro Inc meeting 
        Union Co Coll, Sperry Obsy. Indoor talk, clearsky  
        starviewing. Free. www.asterism.org 
    19:30 - Pleasantville - NY - Westchester Amat Astro meeting  
        Pace Univ, Lienhard Hall, Free.    
        www.westchesterastronomers.org, 
        waa-president@westchesterastronomers.org  
     20:00 - Stamford - CT - astronomy lecture 
        Stamford Obsy. $5. Indoor lecture, clearsky starviewing. 
        203-322-6537, www.stamfordmuseum.org 
        info@stamfordmuseum.org 
    20:00 - Central Park - MH - clearsky starviewing 
        PLUS OCCASIONAL EXTRA SESSIONS; INQUIRE AT CONTACT  
        Top of the Lawn. North path of Great Lawn. Free. Cancelled for 
        clouds. tags_p@yahoo.com, www.nyskies.org, nyskies@nyskies.org 
    20;00 - Wash'n X'ing - NJ - clearsky starviewing 
        Amat Astro Assn of Princeton. Simpson Obsy. Free, cancelled 
       for clouds. www.princetonastronomy.org, 609-737-2575, 
       info@princetonastronomy.org 
    20:300 - Lk Taghkanic St Pk - NY - clearsky starviewing 
        Mid-Hudson Astro Assn. West Beach parking lot. Free,  
        cancelled for clouds. Adv regn reqd with vehicle make, 
        model, plate number for park security. `       
        www.nidhudsonastronomy.org 

Sat  4 May 
    14:30 - New Brunswick - NJ - Henry & Gladys Irons Lecture 
        Physics lecture Hall, Busch Campus. 'Seeing dark energy'. 
        Free. Adv regn reqd for close-in parking. 
        www.physics.rutgers.edu, 
        lrivera@physics.rutgers.edu, 848-445-8973 
    20:00 - Great Kills Pk - SI - clearsky starviewing 
        Natl Pk Svc. Enter at Hylan Bv to playground; Free. Cancelled 
        for clouds. www.nps.gov/gate, 718-987-6790  n 
    20:00 - Southold - LI - Custer Institute meeting 
        OCCASIONAL EXTRA EVENTS; INQUIRE AT CONTACT  
        Custer Instt. Indoor program, clearsky starviewing. $5-$15. 
        Varies with program. www.custerobservatory.org, 
        president@custerobservatory.org, 631-765-2626  
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  
        Amat Obsrs Soc. capus of Custer Institt. Sessions concurrent 
        with Custer's own events. Free, cancelled for clouds. 
        www.aosny.org, suerose@optonline.net             
    20:00 - Inwood Hill Park - MH cleasky starviewing 
        OCCASIONAL EXTRA SESSIONS; INQUIRE AT CONTACT  
        Inwood Astronomy Project. Meet at park entrance, Seaman Av 
        & Isham St. Free. Cancelled for clouds. 917-529-2359 
        www.inwoodastronomy.org, asonskendall@gmail.com 
    20:00 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg 
        UACNJ Obsy. Indoor talk, clearsky starviewing. Free.  
        www.uacnj.org 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 


Sun  5 May
    02:00 - Lexington Av line - MH - tap-&-go fare begins 
        TENTATIVE DATE; INQUIRE AT CONTACT 
        Stations on Lexington Av (green) line from Barclays Ctr to 
        Grand Central have turnstiles with tap-&-go sweet spots. Tap 
        creedit/debit card  or new 'OMNY' farecard to pay fare. For 
        now only pay-per-ride fares are active. Other fares available 
        late 2019. MCs still valid for several yar ny slicing thru 
        turnstile slot. www.mta.info 
    02:00 - Staten island buses - SI - tap-&-go fare begins 
        TENTATIVE DATE; INQUIRE AT CONTACT 
        Buses on Staten iland (routes S-xx) have fareboxes with tap-&-
        go sweet spots. Tap creedit/debit card  or new 'OMNY' farecard 
        to pay fare. For now only pay-per-ride fares are active. Other 
        fares available late 2019. MCs still valid for several yar ny 
        sunking into farebox slot. www.mta.info 
    13:15 - Uniondale - LI - Amat Obsrs Soc meeting. 
        Hofstra Univ, Berliner Hall. Free. www.aosny.org, 
        suerose@optonline.net 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 

Wed  8 May 
    17:30 - Hempstead - LI -  Amer Instt Aero & Astro lecture       
         Hofstra Univ, Breslin Hall. Various topics in 
        aeronautics and astronautics. 'Nars sample return missiOn'. 
        Free, opt $7 pizza-soda. 516-458-8593, davidparis@twc.com 
    19:00 -East hampton - LI - astronomy lecture 
        Montauk Obsy. Guild Hall, 158 Main st. Indoor talk, 
        clearsky starviewing. Free. www.montaukobservatory.com 
    20:00 - Upper Montclair - NJ - No Jersey Astro Gp meeting 
        Montclair St Univ, Richardson Hall, Room 232. Free. 
        njastro.org, 973-655-7266 
    20:00 - Westport - CT - clearsky starviewing - see May 1 
    20:00 - Middletown - CT - clearsky starviewing - see May 1/ 
    20:00 - Centerport - LI - Astro Soc of LI meeting - see May 1 
    20:30 - York College - QN - astronomy lecture . 
        Core Academic Bdg, Rm AC-2E01. Indoor lecture, clearsky 
        starviewing. Free, adv regn reqd. 718-262-2082, 
        www.york.cuny.edu/centers-institutes/observatory, 
    21:00 - Poughkeepsie - NY - clearsky starviewing - see May 1 

Thu  9 May 
       19:30 - Morristown - NJ - Morris Museum Astro Soc meeting  
         Morris Museum. Free. 973-386-1848, 973-386-1848,, 
         www.morrismuseum.org/astro-society, info@morrismusem.org, 
         ckkrish@gmail.com 
    20:00 - Upper Montclair - NJ - clearsky starviewing - see May 2 
    20:30 - Piscataway - NJ - clearsky starviewng 
        Rutgers Univ, Schommer Obsy. Free. Cancelled for clouds.  
        732-205-0020, www.physics.rutgers.edu/ast/ast-serin.html  
        pryor@physics.rutgers.edu 
   20:30 - Coll of Staten Is - SI - clearsky starviewing - SEE mAY 2


Fri 10 May 
    10:00 - Good Housekeeping Resrch Instt - MH - science tour 
        Also 11:30. Hearst Tower, 57 St & 8 Av. Walk thru history and 
        science of product testing center of Good Housekeeping 
        magazine. Free, adv regn reqd. 212-649-5000, 
        ghritours@hearst.com 
    10:30 - NYU school of Engineering - BK - astronomy lecture 
        370 Jay St ^ Willoughby St (MetroTech), 'The monster at the 
        center of our galaxy'. Free. bgaretz@nyu.edu, 646-697-3287 
     19:00 - Toms River - NJ - Astro Soc of Toms Rv Area meeting 
        Ocean Co Coll, Novins Planetarium. Free. 
        www.astra-nj.org, 732-255-0343, webmaster@astra-nj.org 
    19:30 - Torrington - CT - Litchfield Hills Amat Astro Club mtg 
        Central Congregational Church. Free. 
    19:30 - Cranford - NJ - Amat Astro Inc meeting - see May 3 
    19:30 - Staten Is Community TV - SI - science show - see May 3 
    20:0:0 - Columbia University - MH - astronomy lecture 
          Pupin Hall, signs to lecture room. Indoor lecture, clearsky 
         starviewing. Free. outreach-admin@astro.columbia.edu, 
         www.astro.columbia.edu/outreach, 212-854-3278 
    20:00 - Floyd Bennett Field - BK - clearsky starviewing 
        Community Garden. NYSKies & Natl Park Svc. Free. Cancelled 
        for clouds. www.nyskies.org, stephenlieber@nyc.rr.com, 
        nyskies@nyskies.org 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 
    20;00 - Wash'n X'ing - NJ - clearsky starviewing - see May 3 
    20:00 - Stamford - CT - astronomy lecture - see May 3 

Sat 11 May 
    10:30 - Bridgehampton - LI - astronomy lecture 
        Montauk Obsy.South Fork Natl Hist Musm. Indoor talk, 
        clearsky starviewing. Free. www.montaukobservatory.com 
    20:00 - Danbury - CT - astronomy lecture 
        Westn Conn St Uv, Obsy/Plm. Indoor planetarium show, 
        clearsky starviewing. Free. www.wcsu.edu/starwatch, 
       203-837-8671, dawsond@wcsu.edu 
    20:00 - New Milford - CT - astronomy lecture  
        McCarthy Obsy, New Miford HS. Indoor lecture, clearsky  
        starviewing. Free. www.mccarthyobservatory.org, 860-354-1595, 
        mccarthyobservatory@gmail.com 
    20:00 - Middletown - CT - clearsky starviewing 
        Astro Soc of Gtr Hartford, Wesleyan U, Van Vleck Obsy. Free. 
        cancelled for clouds. www.asgh.org, 860-872-9069, 
        pparkerrs@cs.com 
    20:00 - Southold - LI - Custer Institute meeting - see May 4 
    20:00 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg - see May 4 
    20:00 - Inwood Hill Park - MH cleasky starviewing - see May 4 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see May 4 

Sun 12 May 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 

Tue 14 May 
    19:30 - Princeton - NJ - Amat Astro Assn of Princeton meeting 
        Princeton U, Peyton Hall. Free. www.princetonastronomy.org, 
        609-737-2575, info@princetonastronomy.org 

Wed 15 May 
    18:00 - Melville - LI - science lecture
        Amer Soc mech Engrs. Bertucci's Restaurant, 881 wlat Whitman 
        Rd (Rte 110).'Fukushima nuclear accident'. $10, includes light 
        supper. adv regn reqd. invest1@optonline.net 973-979-3363, 
        hansenp@asme.org 
    19:30 - New Brittain - CT - Astro Soc of Gtr Hartford meeting 
        Central CT St Univ, Copernicus Plm. Free. www.asgh.org, 
        860-872-9069, pparkerrs@cs.com 
    20:00 - Way Station Pub - BK - Astronomy on Tap meting 
        683 Washington Av & Prospect Pl (Prospect Hts). Informal 
        astronomy discussion in pub setting. Free, one drink purchase 
        reqd. astronomyontap.org/locatons/new-york-city 
    20:00 - Middletown - CT - clearsky starviewing - see May 1/ 
    20:00 - Westport - CT - clearsky starviewing - see May 1  
    20:00 - Centerport - LI - Astro Soc of LI meeting - see May 1 
    20:30 - Greenwich - CT - clearsky starviewing - see May 1 
    21:00 - Poughkeepsie - NY - clearsky starviewing - see May 1 

Thu 16 May 
    14:00 - whole City - MH - Apollo-50 webcasts- see May 2 
    20:00 - Upper Montclair - NJ - clearsky starviewing - see May 2 
    20:30 - Piscataway - NJ - clearsky starviewng - see May 9  

Fri 17 May
    10:00 - Princeton - NJ - science tour - see May 3 
    18:30 - McBurney House - MH - NYSkies Astronomy Seminar  
        PRESENTATION: MANHATTANHENGE, MANHATTAN'S STONEHENGE SUNSET 
        125 W 14 St, 6/7 Av. Discussion of astronomy topics, show 
        & tell, skywatching reports, news of astro activity in NYSkies 
        territory. Free. nyskies@nyskies.org, www.nyskies.org     
    19:30 - Staten Is Community TV - SI - science show - see May 3 
    20:00 - Cranford - NJ - Amat Astro Inc lecture 
         Union Co Coll, Smith Audm. Indoor talk, clearsky 
        starviewing. Free. www.asterism.org 
    20:00 - Stamford - CT - astronomy lecture - see May 3  
    20;00 - Wash'n X'ing - NJ - clearsky starviewing - see May 3 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 
    20:30 - Boonton - NJ - clearsky starviewing  
        Sheep Hill Astro Assn Obsy, Free. Cancelled for  
        clouds. sheephillastro.otg, contacts@sheephillastro.org, 
        wwestura@optonline.net 

Sat 18 May 
    20:00 - Bear Mountain - NY - clearsky starviewing 
        Rockland Astro Club. Anthony Wayne Rec Pk, picnic field. Free, 
        cancelled for clouds. www.rocklandastronomy.com 
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see May 4 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 
    20:00 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg - see May 4 
    20:00 - Danbury - CT - astronomy lecture - see may 11 
    20:00 - Inwood Hill Park - MH cleasky starviewing - see May 4 
    20:00 - Southold - LI - Custer Institute meeting - see May 4 

sun 19 May 
    14:00 - Airmont - NY - science show 
        Ramapo Challenger Ctr, 225 Rt 29. Multimedia 
       imulation of space missions. $20., director@lhvcc.com, 
        845-257-3416, ramapoparks#ramapo.org, 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 

Mon 20 May
    19:00 - Shakespeare & Co - MH - science show
        2020 Broadway, 69 St. Author Colin Davey discusses, signs, his 
        book 'The American Museum of Natural History and how it got 
        that way'. Free, opt book putchase. www.shakespeareandco.com, 
        212-738-0001, info@shakespeareandco.com 

Tue 21 May 
    20:00 - Westport - CT - Westport Astro Soc meeting 
         Rolnick Obsy. Free. www.was-ct.org, 203-227-0925 

Wed 22 May 
    all day - whole City - MH - Fleet Week show 
       VARIOUS LOCATIONS AND HOURS; INQUIRE AT CONTACT 
        Thru 28 May. Dozens of navy ships from several countries 
        dock in NYC for tours and visits. Demos ofair-sea operations a 
        various places in City. Exhibts at Intrepid Museum. Free, 
        possible limited room or long waits. Local news media, 
        www.militarynews.com/app/fleetweknewyork 
    all day - whole City - MH - World Science Festival 
        VARIOUS LOCATIONS AND HOURS; INQUIRE AT CONTACT 
        Thru Sun 2 Jun. Lectures, shows, performances, exhibits for 
        all sciences. Some events are  free, some pay. Many concurrent 
        events in different locations. www.worldsciencefestival.com, 
        info@worldsciencefestival.com 
    20:00 - Westport - CT - clearsky starviewing - see May 1  
    20:00 - Centerport - LI - Astro Soc of LI meeting - see May 1 
    20:00 - Middletown - CT - clearsky starviewing - see May 1/ 
    21:00 - Poughkeepsie - NY - clearsky starviewing - see May 1 

Thu 23 May 
    20:00 - Upper Montclair - NJ - clearsky starviewing - see May 2 


Fri 24 May 
    19:30 - Staten Is Community TV - SI - science show - see May 3 
    19:30 - Cranford - NJ - Amat Astro Inc meeting - see May 3 
     20:00 - Litchfield - CT - Litchfield Hills A A C lecture 
        White Meml Consrvn Ctr. Free. Indoor lecture, clearsky 
        starviewing. lhaacsec@gmail.com, lhastro.org 
    20;00 - Wash'n X'ing - NJ - clearsky starviewing - see May 3 
    20:00 - Stamford - CT - astronomy lecture - see May 3 
    20:0:0 - Columbia University - MH - astronomy lecture - see May 10 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 

Sat 25 May 
    20:00 - Ward Pound Ridge - NY - clearsky starviewing 
        Westchester Amat Astro. Meadows Picnic Area. Free. Cancelled 
        for clouds. waa-president@westchesterastronomers.org 
        www.westchesterastronomers.org, 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 
    20:00 - Inwood Hill Park - MH cleasky starviewing - see May 4 
    20:00 - Central Park - MH - clearsky starviewing - see Apr 5 
    20:00 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg - see May 4 
    20:00 - Southold - LI - Custer Institute meeting - see May 4 
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see May 4 
    20:30 - Voorhees St Pk - NJ - NJ Astro Assn meeting 
        NJAA-HQ, Robinson Obsy. Indoor lecture, clearsky 
        starviewing. Free. www.njaa.org, 908-368-8500 

Sun 26 May 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 

Mon 27 May 
    all day - whole City - MH - memorial Day 
        Please check with event contact for session falling on this 
        day by rule or outdated schedule c  

Tue 28 May 
    19:30 - nEW hAVEN - ct - aSTRO sOC OF nEW hAVEN MEETING 
        yALE uNIV, lEITNER fAMILY oBSY. iNDOOR TALK, CLEARSKY 
        STARVIEWING. fREE. WWW.ASNH.ORG, PREZ@ASNH.ORG 

wed 29 May 
    20:00 - gridiron - MH - Manhattanhenge 
        Thru 31 May. Sun sets in line with E-W streets within 
        Manhattan gridiron. Requires clear view along street to 
        horizon in NJ. www.nyskies.org/articles/pazmino/stone-ny.htm 
    20:00 - Middletown - CT - clearsky starviewing - see May 1/ 
    20:00 - Westport - CT - clearsky starviewing - see May 1  
    20:00 - Centerport - LI - Astro Soc of LI meeting - see May 1 
    21:00 - Poughkeepsie - NY - clearsky starviewing - see May 1 

Thu 30 May 
    14:00 - whole City - MH - Apollo-50 webcasts- see May 2 
    20:00 - Upper Montclair - NJ - clearsky starviewing - see May 2 

Fri 31 May 
    19:30 - Cranford - NJ - Amat Astro Inc meeting - see May 3 
    19:30 - Staten Is Community TV - SI - science show - see May 3 
    20:00 - Central Park - MH - clearsky starviewing - see May 3 
    20;00 - Wash'n X'ing - NJ - clearsky starviewing - see May 3 
    20:00 - Stamford - CT - astronomy lecture - see May 3 

 Events Skipped This Month 
 -----------------------                                          
  EVENT MAY RESUME AT DIFFERENT PLACE OR HOUR; INQUIRE AT CONTACT 
  --------------------------------------
  --------------------------------------
  [AUT] AUTUMN RESUMPTION OF ACTIVITY 
  --------------------------------------
    14:00 - New York University - MH - astronomy lecture 
        726 Broadway, Rm 940. Various topics in astrophys and 
        relativity. Free. Have GI photo ID for campus security. 
        physics.nyu.edu/events.htm 
    15:30 - Greenwich - CT - Astro Soc of Greenwich meeting 
        Greenwich Public Library. Free with musm adm. 
        rickbria@optonline.net, 203-415-6762, astrogreenwich.org 
    15:30 - Palisades - NY - science lecture 
        Lamont-Doherty Earth Obsy, Comer Bldg. Various topics in 
        geophysics and earth science. Free, 845-365-8634, 
        www.ldeo.columbia.edu, suzana@ldeo.columbia.edu, 
    15:30 - Courant Institute - MH - science lecture 
        Ctr for Atmosp & Ocean Studies. Weaver Hall, 251 Mercer 
        St. Various topics in geophysics and earth science. Free. 
        caos.cims.nyu.edu, shafer@cims.nyu.edu 
    18:00 - Cornelia St Cafe' - MH - Entertaining Science show 
        29 Cornelia St & W 4 St, Play & music on various 
        science themes. $10 + one drink min. 
        www.corneliastreetcafe.com, 212-989-9319 
    18:00 - Columbia University- MH - Ctr for sci and Soc lecture 
       Fauenweather Hall, Room 513. 'Comparing domains of 
        improvisation'. Free, adv regn reqd. 
        212-854-7211, scienceandsociety.columbia.edu 
    18:00 - Inst Stud Anc World - MH - cultural lecture 
        15 E 84 St, 5/Madison Av. Various topics on history and 
         culture of ancient civilizations.. Free, adv regn reqd. 
        isaw..nyu.edu isaw@nyu.edu, 212-992-7842 
    18:15 - Amer Musm Natl Hist - MH - Amat Astro Assn lecture 
         Kaufmann Theater. Free, no musm adm fee. 718-522-5014, 
         president@aaa.org, www.aaa.org 
     18:30 - Columbia Univ - MH - Amer Instt Archaeolgy lecture 
        Schermerhorn Hallt. Various topics on archaeology and 
        anthropology. Free, adv regn reqd. www.aia-nysociety.org, 
        info@aia-bysociety.org 
    18:00 - New York University- MH - NY Hist of Sci lecture 
        Galatin Hall, 1 Washington Pl, Rm 801 'Pathologies of 
       blackness'. Free, adv regn reqd. 212-854-7211, 
        scienceandsociety.columbia.edu 
    19:30 - Alley Pond Park - QN - astronomy lecture 
        Alley Pond Enviro Ctr. Indoor lecture, clearsky 
        starviewing. $14 at door.. www.alleypond.org, 
        info@alleypond.org, 718-229-4000 
     19:30 - Intrepid Museum - MH - AstroCafe' lecture 
        Flight deck of ship. Indoor/open air lecture, clearsky 
        starviewing. Food & drink service, bar drinks sold only to 21+ 
        YO. Free. www.intrepidmuseum.org 
\     20:00 - Uniondale - LI - clearsky starviewing 
        Hofstra University,Berliner Bdg, Rm 117. Free, 
        adv regn reqd. Cancelled for clouds. 516-463-2759, 
        www.hofstra.edu/Academics, observatory@hofstra.edu 
 
  --------------------------------------
  [???] UNCERTAIN RESUMPTION OF ACTIVITY 
  --------------------------------------
    14:00 - NYPL 42nd St branch - MH - New York Map Society lecture 
         Various topics about map making, cartography, geography. 
        Free, adv regn reqd. www.newyorkmapsociety.org, 
        mapsociety@ny@gmail.com 
    18:00 - Earth Institute - MH - science lecture 
        Columbnia Univ, Lerner Hall, Arledge Audm.. 'Sea level rise: 
        Causes, impacts and options for solutions'. Free, adv regn 
        reqd. ei.columbia.edu 
    19:00 - NY Academy of Sciences - MH - astronomy lecture 
        'The nystery of our mathematical universe'. $20. www.nyas.org 
     19:30 - Intrepid Museum - MH - astronomy lecture 
        Flight deck of ship. Indoor/open air lecture, clearsky 
        starviewing. Free. www.intrepidmuseum.org 
    20:00 - West Reading - CT - clearsky starviewing 
        New Pond Farm, obseratory. $10, adv regn reqd. cancelled for 
        clouds. www.newpondfarm.org, 203-938-2117

General News
 ----------
    This issue of NYC Events has many new listings, both new members 
and one-shot items. Look in the 'Index of events' for these new items 
in your district. 
    We welcome the CUNY Graduate Center to NYC Events with its 'City of 
science' lectures. We learned of it in early April, near the end of 
its spring season. There's one event left, on May 2 
    The 20 May 2019 show at Shakespeare & Co bookstore is a dialog and 
signing by Colin Davey, who spoke to our Seminar several years ago. He 
was then compiling a history of the old Hayden Planetarium, that by 
now evolved into the story of the whole Amer Musm Natl Hist. 
    The UN film on May 2 requires registration by online form, 
obtained from the contact. After submitting the form, you get email 
response with instruction for UN campus entry.  Please follow the 
instructions, not skipping any steps. This is a general practice for 
all UN events. 
    Welcome to new member Astronomy on Tap, a newer circle of 
astronomers. It has monthly meetings in a pub in Prospect Hts BK on 
the third Wednesday. Meeting is free but the pub has a one-drink 
minimum. See May 15. 
    Amat Astro Assn has no May lecture. Its May session normally ends 
the season. AAA had two talks in April, the one on the 26th counting 
as the 'May' and final one for 2018-2019. 
    Alley Pond Enviro Ctr had no starviewing for a couple months, 
altho it usually runs them in spring thru fall. I moved Alley Pond to 
the 'AUT' section. 
    I shifted the hour for Simons from 17:00 to 16:15 to allow early 
arrivers to enjoy the host's buffet snack. Almost every NYSkier avails 
of this service and it is part of the event. Talk still begins at 17h. 
    Cornelia St Cafe' apparently suspended shows all thru spring and 
summer. I moved it to the 'AUT' section for revival in the fall. 
   A potential event conflict sprang up for 17 April. Simons had a 
lecture about exploring Saturn's moon Titan in afternoon. Following in 
evening the Graduate Center slated a dialog with Dr Freeman Dyson. 
NYSkiers had to choose one because there  was too short interval to 
travel between them. On Friday the 12th a couple NYSkiers told me the 
Grad Ctr called off the Dyson talk. On Monday the 15th I verified  the 
cancellation. Dyson was ill but otherwise in good health. He may be in 
the Ctr's schedule for next season. 
    Mid Hudson Astro Assn posted slate of events for rest of 2019, 
starting with April. It has monthly starviewing at Lk Taghkanic St Pk. 
    Goddard Instt Space Studies celebrates the Apollo 50th anniversary 
with a series of live webcasts. NYC Events usually sips web, TV, cable 
radio events because their times and channels vary across our 
territory. In this instance the webcast is the same in channel (web 
address) and hour for all readers. See May 2, 16, 30 

City News 
 -------
    In early April NYC Mayor deBlasio took his presidential pitch to 
Nevada. He was welcomed by tens of fans. Hizzoner paid respects to the 
illegal alien tortured in Area 51. He also visited the home of Art 
Bell and praised his agitation for immigrants from beyond Earthly 
borders. 
    The 'Can you beat Kurt' segment of Larry Elder's radio show on 
April 12 had a question about the Moon: 'Who was the second man to 
step onto the Moon?'. Kurt answered correctly, 'Buzz Aldrin.'. 
    NYSkies Astronomy Seminar on April 5 was a short one to allow rest 
for those of us heading to  NEAF on t he next morning. We looked at 
bright planetary stars, based on my NEAF show  'Are these stars 
looking back at us'. we worked with printouts of the NEAF slides. We 
saw that serious thought for planets around other stars dates to the 
1780s. Goodricke studied star Algol and suggested that it had a 'dark 
body' orbiting it. Algol's periodic dimming was ny such a body 
blocking its light when it crossed in front. Nothing more happened  
until the late 1880s with the realization that Mars could be peopled. 
This belief ignited the first serious effort for space travel in about 
1900. In 1899 Tesla heard during radio experiments noise from an 
unknown transmitter. Because there were no other transmitters on 
Earth, the noise had to come from off of our planet. Tesla saw Mars in 
the sky and realized it was the obvious source. decades later we found 
he really heard radio noise from Jupiter, also in the sky at that 
time. Jupiter radio noise was 
 Actual searches for exoplanets, or extrasolar planets, began in the 
1960s. This work paralleled the separate search for extraterrestrial 
intelligence, SETI. We saw how van de Kamp tried to detect planets at 
Barnard's star by astrometry. His results were marginal and 
inconclusive. We at last found the first exoplanet in 1992 at an 
obscure star of little interest to home astronomers. Several more were 
found, including one at a pulsar. In 1995 we discovered a planet at 51 
Pegasi. 51 is the first bright planetary star, known to us since at 
least the 1600s. 51 Peg was easy to point out by eye or binoculars 
about 2/5 way from Markab to Scheat in the Great Square. By e2000 we 
had about eight bright planetary stars, with upsilon Andromedae having 
three planets. We learned how I compiled a list and handed printouts 
of it at various astronomy meetings. The list was revised to add nw 
bright planetary stars and update planet data. In 2002 the list was 
put into the new NYSkies Yahoogroup and in 2007 it went into the new 
NYSkies web. We stepped thru the features of the list, now a major 
article 'Are these stars looking back at us'. At first the table 
listed stars visible in New York latitude and with either Bayer or 
Flamsteed names. It expanded to the whole celestial sphere and to 
other bare-eye star having no Bayer/Flamsteed name. Today the table 
has 104 stars with 155 planets. We examined the columns of data for 
the stars: star name, Henry Draper number, RA-DE, magnitude, distance, 
and 'Sun'. 'Sun' is the magnitude of our Sun in the star's sky. it 
helps to appreciate the minuscule size of our solar system on the 
cosmic scale. For each planet the table give its mass in Jupiter 
units, semimajor axis in AU, orbit period in Earth days, year of 
announcement. Takeaways were historical articles on extrasolar 
planets, segment of the planetary star table, charts for several 
planetary stars, and cartoons of us looking at planetary stars and 
creatures on a exoplanet looking back at us. The meeting finished at 
8:30PM, a full hour early, letting every one get home for a good sleep 
    At NEAF we learned that Dawn dish wash, the 'simply clean' style, 
is safe to clean optics -- and pet cats! Dawn's other styles are too 
harsh for both subjects. 
    World Science Festival runs May 22-June 2 with a hundred shows all 
over Manhattan and many in other boros. Please mind well that events 
can run together or adjacent in time. Events are a mix of pay and free 
and may require advance registration. 
    I uploaded two revised pieces. The one on the magnitude system has 
a new section for Main Sequence fitting, derived from your recent 
Seminar on the HR Diagram. The other is the table of planetary stars 
with updated planet data and some text rewrite. There are no new 
planetary stars or planets since the last issue in fall 2018. the 
articles are at 

    www.nyskies.org/articles/pazmino/isl-magn.htm 
    www.nyskies.org/articles/pazmino/planstar.htm 

    At NEAF, 6-7 April, NYSkies heard no strong concern for the 
measles epidemic in Rockland county. Most attendees from farther away 
didn't know about it. County has campaign for child vaccination and 
advises to keep vulnerable children away from public places. 
    No one at NEAF, 6-7 April, referred to the bridge over Tappan Zee 
by its new name 'Mario Cuomo bridge'. Even local attendees still call 
it Tappan Zee bridge'.. 
    NYSkies Astronomy Seminar on 19 April explored the blackhole in 
galaxy M87, with its new image. We walked the story of blackhole 
concepts from Newton's gravity crisis in the 1600s. He saw that when 
an attrahent body is replaced by a point mass, the gravity field near 
it increases without limit. He discovered what nature was supposed to 
always prevent, the singularity. His solution was to assert that 
celestial bodies have solid surfaces to stop too-close approach to the 
point mass. In the 1780s Michell worked out that a star could be so 
massive that its escape velocity excedes lightspeed. Light could not 
leave the star and we could not see it. He showed that the star could 
be revealed by small bodies orbiting it. We saw how in Einstein's 
theory of relativity the blackhole event could occur. Schwarzschild 
showed that around a blackhole there is a radius where the escape 
speed equals lightspeed.In the 1930s Oppenheimer found that a star 
could collapse into a blackhole. Astrophysical models and observation. 
We saw charts made by astrophysics satellite of x-ray and gamma-ray 
sources that required relativity theory to investigate. The sources 
were probably real blackholes formed by collapsed stars. The term  
'black hole' for these objects was coined by Wheelr in the 1960s and 
is now commonly 'collapsed' into one word. We then looked at 
blackholes in galaxy cores. The first one we found was in galaxy M87. 
We examined pictures of early views of this blackhole before its 
nature was known. We discussed interferometry networks of radio 
telescopes, leading to the Event Horizon Telescope project. It 
captured the blackhole image thru its extreme angular resolution of 
microarcseconds and wavelengths to penetrate intervening gas/dust. The 
picture shows the inner accretion disc at the edge of the closest 
stable orbit for matter. The empty dark blackhole itself nests on this 
disc. We saw just how big this blackhole is compared to the solar 
system.. We learned that the wavelength received, 1.3mm, is stretched 
from the emitted wavelength by the strong time dilation. The swirling 
motion of the gas is also slowed by this dilation. By good luck M87 is 
in high sky during the spring. We can spot its location in Virgo. Some 
of us observe M87 as a deepsky target and can show it thru our scopes. 
Takeaways were diagrams of Newton's problem, historical articles on 
blackholes, diagrams of blackhole structure. map of the Event Horizon 
project sites, illustration of building the blackhole image, size 
comparison of M87 blackhole and solar system, skymap for spring with 
M87, photo of Virgo galaxy cluster with M87. 
    NYC's municipal wireless network crashed on April 6, suspending 
service for agencies and departments for several days. he City missed 
installing computer patches to ride thru the GPS rollover of its week 
counter, used for timekeeping in the  wireless system.  Warning of the 
rollover was sent by US DHS to City, and other GPS-dependent clients, 
in mid 2018 but apparently was neglected. Service was restored by 
April 12. 
    Underground fire and explosion rocked 32 St, Fifth/Madison Avs, on 
24 April. Fire filled street with dense smoke erupting from several 
manholes at ~10:00 EDST. Several adjacent buildings were evacuated. 
Fire then ignited piped methane explosion under 6 E 32 St. 3 
firefighters and several others were injured.. S street was closed and 
traffic was rerouted for several days. 
    Earth Day in Union Sq on April 23 was a huge success for NYSkies 
and other exhibitors. Air was mild, sunny, at times breezy. Hundreds 
of visitors stopped at NYskies booth to learn about the M87 blackhole 
and our Seminars. Table crew John Gale, Jim Henderson, Gregory 
Homatas, steve Kaye, John Pazmino took turns fielding questions and 
carrying dialog. 

Sky News
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    NYSkies finished its 2019 Globe at Night campaign on March 27-
April 5. Sky conditions were so-so with many nights being hazy or 
cloudy. Orion by mid April was moving into evening twilight, 
compromising further sky readings.śWe resume GaN in November 2019 when 
Orion comes back into the evening sky. 
    The GPS week counter did a rollover from 1023 to 0  on 6 April 
2019 to begin its third epoch since the system started in January 
1980. In the data stream sent by GPS satellites the week count is a 
10-bit field, with maximum value 1023. Certain GPS receivers use it to 
compute calendar date. When week 1024 came on April 6th the field 
rolled over to zero, looking like the starting week of GPS service. 
Receivers locked up due to discordant dates. Previous week rollover, 
when GPS entered its 2nd epoch, was in August 1999. it was erroneously 
associated with the Y2K rollover a few months later. 
    May 2019 opens the spring Milky Way season for NYSkies. It runs 
thru June 30. The campaign inspects the sky for possible sighting of 
brighter patches of the summer Milky Way in owl hours. Full dark 
vision and avoidance of lights on face are required. Details at 

    www.nyskies.org/articles/pazmino/milky-ny.htmn. 

    May continues the omega Centauri challenge, to see this globular 
cluster from our latitude. April was a rain/cloud filled month, 
preventing all chance of a sighting. Effort demands clear south 
horizon, clean dark air, good telescope skills. Details at 

    www.nyskies.org/articles/pazmino/51285139.htmn. 

The best hope is viewing from a darksky location, altho in the past a 
couple successful sightings were captured within the City from 
waterfront sites. 
    2019's first Manhattanhenge is on May 29-31, during World Science 
Festival. At NEAF several visitors at the NYSkies table said they may 
come to the City to do both WSF and Manhattanhenge. Manhattanhenge 
grew steadily over the years as a public celebration of urban 
astronomy with nyriads of people clogging Manhattan streets at sunset. 
Details at 
 
    www.nyskies.org/articles/pazmino/stone-ny.htmn.  

    Some readers were surprised to learn that Mars is still in the 
evening sky in April 2019. Most of us let Mars go after eastern 
quadrature, when his disc got too small for comfortable observing. 
Mars thenafter edges closer to evening twilight slowly, fading and 
shrinking, for a couple months. He's only a dot in small scopes but we 
waved at him near Pleiades-Hyades in early April. 
    Extremely dark sky over NYSkies on 15 April in late night. Strong 
winds pushed away evening clouds to reveal stars to 4 to 4-1/2 
magnitude -- with a large gibbous Moon among them! Away from Moon 
small stars were spotted in Ursa Major, Draco, Hercules, Virgo. Air 
was chilly with stiff wind. Conditions reminded some observers of the 
cold, wind, dark sky during January's lunar eclipse. 
    Porrima, gama Virginis, is a normal easy double star in spring 
sky. Observers vividly recall to newcomers the seething excitement of 
the 2-thous when the two stars coalesced into a single point! This 
happens every, uh, 168ish years and was witnessed only once 
previously, in the 1830s. 
    Many guests at my talk on planetary stars at NEAF vowed to include 
these objects in their public starviewings. They were amazed how many 
planetary stars are bare-eye members of constellation figures. The 
full list is at 

    www.nyskies.org/articles/pazmino/planstar.htmn.  

    The aurora alert on 2019 March 23, evening of Earth Hour, scored 
no aurora for NYSkies. At NEAF observers reported that aurora missed 
our longitude band. The northern lights shined over mid and western 
Great Lakes. 
    Observers are highlighting the M87 galaxy  at starviewings. It's 
home to the supermassive blackhole recently imaged around its inner 
circular stable orbit. We  here to fore showed M87 for decades but 
public interest soared with the new picture. M87 is in the Virgo 
galaxy cluster, high in south in spring.