NYSkies Astronomy Inc
The support service for home astronomy in New York




NYC Events


 John Pazmino      -
 NYSkies Astronomy Inc  

                    The following astronomy activities in the 
commuting ring enclosing New York City are operated by various 
organizations. A few cultural  items 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 
    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.  
    '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.  
  Moon phase: .NM., .FQ), (FM), (LQ.  
  Sunset is noted for each Saturday  
  Sun   Mon   Tue   Wed   Thu   Fri   Sat   sunset 
 -30      1    .2)    3     4     5     6   19:58 
   7      8     9   (10)   11    12    13   20:05 
  14     15    16    17   (18.   19    20   20:11 
  21     22    23    24   .25.   26    27   20:17 
  28     29    30    31   .+1)   +2    +3   20:23 

 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 
 ------- -----------------------------------------------
 *Floyd Bennett Field - - - 12 
  Secret Science Club - - -  0 

    CONNECTICUT - CT                                                                          
 *A S of Gtr Hartford - - - 17 
 Astro Soc of Greenwich - - ??? 
 *Astro Soc of New Haven  - 30 
  Boothe Meml Astro Soc - -  5, 19 
  Bowman Observatory  - - -  3, 17 
 *Litchfield Hills AAC  mtg 12 
 *Litchfield Hills starvg   26 
 *McCarthy Observatory  - - 13 
  New Pond Farm - - - - - - ??? 
 Stamford Observatory - - -  5, 12, 19, 26 
 *Van Vleck Obsy (ASGH) - - 27 
  Van Vleck Obsy (WU) - - -  3 
  Western CT St Univ Obsy -  6, 20 
  Westport Astro Soc mtg  -  9 
 *Westport Astro Soc starvg  3, 10, 17, 24, 31 

 *Amateur Observers Soc - -  7 
  Amer Instt Aero & Astro - 17 
  Astro Soc of Long Island   3, 10, 17, 24, 31 
  Brookhaven National Lab -     19 
 Custer Institute - - - - -  6, 13, 20, 27 
  Hofstra Univ Obsy - - - -  7 
  Jones Beach  - - - - -  - ??? 
  Montauk Observatory - - - ??? 
  Ringling Bros circus  - - 12-21 
  SUNY Stony Brook   -  - - S/O 
 *Susan Rose Observatory  -  6, 13, 20, 27 /  ------------------------
  National Space Soc-LISS - chapters.nss.org/ny/longisland,  
 *Amat Astro Assn starvwg -  0 
 *Amat Astro Assn lecture -  5 
  Amer Musm Natl Hist   - -  3 
  Ctr for Atmosp Ocean Std   3 
  Ctr for Science & Society S/O 
  Central Pk (Great Lawn) -  5,6,7, 12,13,14, 19,20,21, 26,27,28 
 *Columbia Univ Obsy  - - -  5, 19 
  Cornelia Street Cafe'   -  7 
  Earth Institute  - - - --  2 
  Fleet Week  - - - - - - - 24-30 
  Good Housekeeping lab   - 12 
  Governors Island  - - - -  1-Sep 25 
  Gullicar's Gate - - - - -  0 
  Instt Stud Ancnt World  -  2, 4, 19  
 *Inwood Astronomy Project   6, 13, 20, 27 
  Manhattanhenge -- - - - - 29-31 
  Memorial Day  - - - - - - 29 
  Milky Way spring season -  1-Jun 30 
  Natl Musm of Mathematics   3 
  NY Academy of Sciences  - ??? 
  NYC-H2O - - - - - - - - -  4 
  NYPL Mid-Manhattan  - - - 11 
  New York Univ Astro - - - S/O 
 *NYSkies Astronomy Seminar  5, 19 
  omega Centauri challenge   1-31 
  SciCafe'  - - - - - - - -  3 
  Science & the Arts  - - - ??? 
  Simons Foundation - - - - ??? 
  South Ferry station - - -  0 
  Top of the Lawn - - - - -  5,6,7, 12,13,14, 19,20,21, 26,27,28  
  TriState computer fair  -  0 
  Urban Park Rangers -  - -  0 
  Woeld Science Festival -  31-June 4 -----------------                            
 Ctr for Space Sci Edu - - info@nyccsse.org, www.nyccsse.org,  
  Physics Club of NY  - - - jdepalma@nyc.rr.com, www.sconyc-ny.org 

  A A A of Princeton  - - -  9 
  A S of Toms Rv Area - - - 12 
 *Amat Astro Inc meeting  -  5, 12, 26 
 *Amat Astro Inc lecture  - 19 
  Instt for Advd Study  - - S/O 
  Morris Musm Astro Soc - - 11 
 *New Jersey Astro Assn     27 
  No Jersey Astro Gp mtg    10/ 
 No Jersey Astro Gp starvg  S/O 
  Peyton Observarory  - - - 17 
  Plasma Physics Lab  - - -  5, 12, 19, 26 
  Rutgers Univ Astro Collqm S/o 
  Rutgers Univ Astro Semnr  S/O 
 *S*T*A*R - - - - - - - - -  4 
  Schommer Observatory  - -  4, 18 
  Sheep Hill Astro Assn - -  7 
 *Sheep Hill Observatory  - 19 
 *Utd Astro Clubs of NJ - -  6, 13, 20, 27 
  Washington Xing St Pk - -  5, 12, 19, 26 
  Buehler-Columbia AAA   - - www.bergen.edu/buehler, 
  Dark Sky Observers  - - - www.users.nac.net/gburke/club  
  McDowell Obsy -mec.rst2.edu, 201-460-8300 
  Montclair Telescope Club  973-948-5284, bischoff@garden.net,    
  Natl Space Soc-NJN  - chapters.nss.org/nj/njn, cpankanin@aol.com 
  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 

+    QUEENS - QN  
  Alley Pond Park - - - - - 20 
  York College Observatory  S/O 


  Coll of Staten Is Obsy  -  4, 18 
  Great Kills Park  - - - - 20 
  Staten Is Community TV  -  5, 12, 19, 26 


    UPSTATE - NY  
  Lamont-Doherty Obsy - - -  5, 12, 19 
  Ramapo Challenger Ctr - - 21 
  Vassar Coll Obsy  - - - - S/O 
  Ward Pound Ridge  - - - - 20 
  Westchester Amat Astro  -  5 
  Mid-Hudson Astro Asson - www.midhudsonastro.org, 845-485-5669 

Ongoing and continuing events 
    all day - South Ferry - MH - South Ferry station reopened 
        Indefinite duration. Old closed South Ferry station 
        reopened on April 4 for access to Battery Pk and SI Ferry. 
        You must Be in 1st 5 cars to get off at South Ferry. 
    all day - whole City - MH - clearsky starviewing  
        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 - 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. $25 preview until May 8, #36 full 
        show then after. 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  R        
        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 
        Source of computer systems, software, components, accessories. 
        $7. www.tri-statefairs.com, 718-227-5586 
    20:00 - Bell House - BK - Secret Science Club meeting  
        149 7 St, 2/3 Av. Lecture and music on various science  
        topics. Free. secretscienceclub.blogspot.com, 718-638-4400, 

List of events 
Mon  1 May 
    00:00 - whole City - MH - spring Milky Way 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    
    all day - Governors Island - MH - cultural shows 
        Thru 25 Sep. Island is open on every daym 10h-20h weekdayss, 
        10h-19g weejebds.Walkand tour thru former military base and 
        new urban park. Shows vary each day or visit by foot or bike. 
        Ferries run every day 10h-17h from Battery Marine Terml, MH, 
        and on weekdays from        Pier 6, BK. Island is free but 
        ferry fare is $2 RT. www.nps.gov/gois 
    22:00 - whole City - MH - omega Centauri chaleenge 
        Thru 31 May. When cluster ome Cen, NGC5128, is on meridian 
        about 1 deg alt, yet is observable from within NYC. Requires 
        dark sky and clear horizon. 

Tue  2 May 
    18:00 - Inst Stud Anc World - MH - cultural lecture 
        15 E 84 St, 5 Av/Madison Av. Various topics in history and 
        ulture of ancient civilizations. Free, adv regn reqd. 
        isaw.nyu.edu, isaw@nyu.edu, 
    18:00 - Earth Institute - MH - science lecture 
        Columbnia Univ, Faculty House, 64 Morningside Dr. 'New York's 
        renewable energy future'. Free, adv regn reqd. 
        ei.columbia.edu,  energypolicy@columbia.edu 

Wed  3 May 
    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 
    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 
    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  - Greenwich - CT - clearsky starviewing 
        Astro Soc of Greenwich. Curtis Elem Schl, Bowman Obsy. Free. 
        Cancelled for clouds. rickbria@optonline.net, 203-415-6762. , 
    20:00 - Middletown - CT - clearsky starviewing 
        Wesleyan U, Van Vleck Obsy. Free, cancelled for clouds. 
        860-685-3664, www.wesleyan.edu/astro/events 
     20:00 - Centerport - li - Astro Soc of LI meeting 
        Vanderbilt Plm. Free. asliastronomy@yahoo.com, 
    20:30 - Westport - CT - clearsky starviewing 
        Westport Astro Soc. Rolnick Obsy. Free. Cancelled for  n        
clouds. www.was-ct.org, 203-227-0925 

Thu 4 May 
    18:30 - Central Park - MH - cultural tour 
        NYC-H2O. Walk thru history and culture of underground harlem 
        Ctrrk in park and nearby streets.. $32.49, adv regn reeqd. 
        www.nych2o.org, matt@nych2o.org 
    18:00 - Inst Stud Anc World - MH - cultural lecture - see May 2 
    20:00 - Lincroft - NJ - S*T*A*R meeting 
        Brookdale Commty Coll, Mommouth Museum. Free. 
        www.starastronomy.org, s-walters@comcast.net 
    20:30 - Coll of Staten Is - SI - clearsky starviewing 
        Astrophys Obsy. Free, cancelled for clouds. 718-982-2818, 
    20:30 - Piscataway - NJ - clearsky starviewing 
        Rutgers Univ, Schommer Obsy. Free. Cancelled for clouds.  
        732-205-0020, www.physics.rutgers.edu/ast/ast-serin.html  

Fri  5 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. Photo ID required for campus security. 
    11:00 - Palisades - NY - science lecture 
        Lamont-Doherty Earth Obsy, Monell Audm. Various topics in 
        geophysics and earth science. Free, 845-365-8634, 
        www.ldeo.columbia.edu, suzana@ldeo.columbia.edu, 
    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 - McBurney House - MH - NYSkies Astronomy Seminar  
        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 - Cranford - NJ - Amat Astro Inc meeting 
        nion Co Coll, Sperry Obsy. Indoor talk, clearsky  
        starviewing. Free. www.asterism.org, hfjacinto6@gmail.com  
        territory. Free. nyskies@nyskies.org, www.nyskies.org 
    19:30 - Pleasantville - NY - Westchester Amat Astro meeting  
        Pace Univ, Miller Hall, Free. www.westchesterastronomers.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, 
    20:00 - Central Park - MH - clearsky starviewing 
        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 - 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 - Stratford - CT - Boothe Meml Astro Soc mtg 
        Boothe Meml Pk, Obsy. Free. www.bmas.org, info@bmas.org 
    20:00 - Stamford - CT - astronomy lecture 
        Stamford Obsy. $3. Indoor lecture, clearsky starviewing. 
        203-322-6537, www.stamfordmuseum.org, cescovil@earthlink.net 
    20:30 - Wash'n Xing S P - NJ - clearsky starviewing 
        Amat Astro Assn of Princeton. Simpson Obsy. Free, cancelled 
       for clouds. www.princetonastronomy.org, 609-737-2575, 

Sat 6 May 
    20:00 - Southold - LI - Custer Institute meeting 
        Custer Instt. Indoor program, clearsky starviewing. $5-$15. 
        Varies with program. www.custerobservator 
        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 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg 
        UACNJ Obsy. Indoor talk, clearsky starviewing. Free.  
    20:00 - Inwood Hill Park - MH - clearsky starviewing 
        Inwood Astronomy Project. Meet at park entrance, Seaman Av 
        & Isham St. Free. Cancelled for clouds. 917-529-2359 
    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 - Central Park - MH - clearsky starviewing - see May 5 

Sun  7 May 
    13:15 - Uniondale - LI - Amat Obsrs Soc meeting. 
        Hofstra Univ, Berliner Hall. Free. www.aosny.org, 
    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 
    19:30 - Boonton - NJ - Sheep Hill Astro Assn meeting  
        Boonton Senior Ctr. Free. www.sheephillastro.org, 
        contacts@sheephillastro.org, wwestura@optonline.net 
    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 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 

Tue  9 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 
    20:00 - Westport - CT - Westport Astro Soc meeting 
        Rolnick Obsy. Free. www.was-ct.org, 203-227-0925 

Wed 10 May 
    20:00 - Upper Montclair - NJ - No Jersey Astro Gp meeting 
        Montclair St Univ, Richardson Hall, Room 232. Free. 
      njastro.org, 973-655-7266 
    20:30 - Westport - CT - clearsky starviewing - see Apr 5 

     20:00 - Centerport - li - Astro Soc of LI meeting - see May 3 
    20:30 - Westport - CT - clearsky starviewing - see May 3 

Thu 11 May 
    18:30 - NYPL Mid-Manhattan Liby - MH - cultural lecture 
      'Quarks of culture: How we came to be'. Free. 
     19:30 - Morristown - NJ - Morris Museum Astro Soc meeting  
         Morris Museum. Free. 973-386-1848, 973-386-1848,, 
        www.mmastrosociety.org, info@morrismusem.org, 

Fri 12 May 
    all day - Uniondale - LI - Ringling Brothers Circus 
        Thru 21 May. Nassau Coliseum. Final season of traditional 
        American circus.lAbsolute ast run inUniondale, then tents fold 
        forever. All acts and performances eexcept those with the 
        elephants. ~$30-~$90, adv regn reqd. www.nassaucoliseum.com,, 
    10:00 - Princeton - NJ - science tour - see May 5 
    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, 
    11:00 - Palisades - NY - science lecture - see May 5 
    19:00 - Toms River - NJ - Astro Soc of Toms Rv Area meeting 
        Ocean Co Coll, Student Ctr, Solar Lounge. Free. 
        www.astra-nj.org, 732-255-0343, webmaster@astra-nj.org 
    19:30 - Cranford - NJ - Amat Astro Inc meeting - see May 5 
    19:30 - Staten Is Community TV - SI - science show - see May 5 r    
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, 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 
    20:00 - Stamford - CT - astronomy lecture - see May 5 
    20:30 - Wash'n Xing S P - NJ - clearsky starviewing - see May 5 

Sat 13 May 
    20:00 - Southold - LI - Custer Institute meeting - see May 6 
    20:00 - Inwood Hill Park - MH - clearsky starviewing - see May 6 
    20:00 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg - see May 6 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see May 6 
    20:00 - New Milford - CT - astronomy lecture  
        McCarthy Obsy, New Miford HS. Indoor lecture, clearsky  
        starviewing. Free. www.mccarthyobservatory.org,  860-354-1595, 

Sun 14 May 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 

Wed 17 May 
    18:30 - Mitchell FField - LI -  Amer Instt Aero & Astro lecture       
        Cradle of Aviation Museum. Various topics in 
        aeronautics and astronautics. Free, optional $5 pizza-soda. 
        516-458-8593, davidparis@optonline.net 
     19:30 - Middletown - CT - Astro Soc of Gtr Hartford meeting 
        Wesleyan Univ, Van Vleck Obsy. Free. www.asgh.org, 
        860-872-9069, pparkerrs@cs.com         
    20:00  - Greenwich - CT - clearsky starviewing - see May 3 
     20:00 - Centerport - li - Astro Soc of LI meeting - see May 3 
    20:30 - Westport - CT - clearsky starviewing - see May 3 
    21:00 - Princeton - NJ - clearsky starviewing 
        Princeton Univ, Peyton Hall. Free. Cancelled for clouds 
        jeg@astro.princeton.edu, lee@astro.princeton.edu 

Thu 18 May 
    20:30 - Piscataway - NJ - clearsky starviewing - see May 4 
    20:30 - Coll of Staten Is - SI - clearsky starviewing - see May 4 

Fri 19 May 
    10:00 - Upton - LI - science lecture 
        Brookhaven Natl Lab, Bldg 510.. 'Tiny bubbles in the mine: New 
        trsults from thr PICO-60 dark matter detector'. Free, have GI 
         photo ID for campus security. www.bnl.gov/physics/evnts, 
    10:00 - Princeton - NJ - science tour - see May 5 
    11:00 - Palisades - NY - science lecture - see May 5 
    18:00 - Inst Stud Anc World - MH - cultural lecture - see May 2 
    18:30 - McBurney House - MH - NYSkies Astronomy Seminar  
        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 5 
    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 5 
    20:00 - Columbia University - MH - astronomy lecture - see May 5 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 
    20:30 - Wash'n Xing S P - NJ - clearsky starviewing - see May 5 
     20:30 - Boonton - NJ - clearsky starviewing  
        Sheep Hill Astro Assn Obsy, Free. Cancelled for  
        clouds. sheephillastro.otg, contacts@sheephillastro.org, 

Sat 20 May 
    19:30 - Alley Pond Park - QN - clearsky starviewing 
        Alley Pond Enviro Ctr. $14 at door. Cancelled for clouds. 
        www.alleypond.com, info@alleypond.com, 718-229-4000 
    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 - Ward Pound Ridge - NY - clearsky starviewing  
        Westchester Amat Astro. Meadows Picnic Area. Free. Cancelled 
        for clouds. waa-president@westchesterastronomers.org   
    20:00 - Danbury - CT - astronomy lecture - see May 6 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 
    20:00 - Inwood Hill Park - MH - clearsky starviewing - see May 6 
    20:00 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg - see May 6 
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see May 6 
    20:00 - Southold - LI - Custer Institute meeting - see May 6 

Sun 21 May 
    14:00 - Airmont - NY - science show 
        Ramapo Challenger Ctr, 225 Rt 29. Multimedia 
       imulation of space missions. $20. wwwlhvcc.com, 
        director@lhvcc.com, 845-257-3416. 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 

Wed 24 May 
  all day - whole City - MH - Fleet Week show 
        Thru 30 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 limitedroom or long waits. Local news media, 
     20:00 - Centerport - li - Astro Soc of LI meeting - see May 3 
    20:30 - Westport - CT - clearsky starviewing - see May 3 

Fri 26 May 
    10:00 - Princeton - NJ - science tour - see May 5 
    19:30 - Cranford - NJ - Amat Astro Inc meeting - see May 5 
    19:30 - Staten Is Community TV - SI - science show - see May 5 
    20:00 - Stamford - CT - astronomy lecture - see May 5 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 
    20:30 - Wash'n Xing S P - NJ - clearsky starviewing - see May 5 
    20:30 Litchfield - CT - Litchfield Hills A A C lecture 
        White Meml Consrvn Ctr. Free. Indoor lecture, clearsky 
        starviewing. lhaac.shutterfly.com, lhaacsec@gmail.com 

Sat 27 May 
    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,  
    20:00 - Southold - LI - Custer Institute meeting - see May 6 
    20:00 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg - see May 6 
    20:00 - Inwood Hill Park - MH - clearsky starviewing - see May 6 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see May 6 
    20:30 - Voorhees St Pk - NJ - NJ Astro Assn meeting 
        NJAA-HQ, Robinson Obsy. Free. www.njaa.org, 908-368-8600 

Sun 28 May 
    20:00 - Central Park - MH - clearsky starviewing - see May 5 

Mon 29 May 
  all day - whole City - MH - Memorial Day 
        Please check with event contact for session falling on this 
        day by rule or outdated schedule 
    20:00 - Manhattan 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 

Tue 30 May 
    19:00 - 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 31 May 
    all day - whole City - MH - World Science Festival 
        Thru Sun 4 Jun. Lectures, shows, performances, exhibits for 
        all sciences. Some events are  free, some pay. Many concurrent 
        events in different locations. www.worldsciencefestival.com, 
     20:00 - Centerport - li - Astro Soc of LI meeting - see May 3 
    20:30 - Westport - CT - clearsky starviewing - see May 3 

Events Skipped This Month 
  --------------------------------------[S/O] SEPTEMBER-OCTOBER 
    11:00 - Princeton - NJ - Instt Advd Stud lecture 
        Princeton Univ, Bloomberg Hall, library. Free.          
    13:30 - Piscataway - NJ - astronomy lecture 
        Seminar series. Rutgers Univ, Serin 401. Free. 732-445-3974, 
    14:00 - New York University - MH - astronomy lecture 
        Meyer Hall, 5th fl. Various topics in astrophys and 
        relativity. Free. Have GI photo ID for campus security. 
    16:30 - Piscataway - NJ - astronomy lecture 
        Colloquium series. Rutgers Univ, Busch Campus, Astro & Phys 
        Lectr Hall. Free. www.physics.rutgers.edu/colloquium, 
    18:00 -CUNY Graduate Center - MH - Ctr for Sci & Soc lecture 
        385 Fifth Av. 'Early modernb science intertwine An 
        Iberoamerican perspective'.. Free, adv regn reqd, Free,  
        limited seating. 212-854-7211, 
    18:00 - Inst Stud Anc World - MH - cultural lecture 
        15 E 84 St, 5/Madison Av. Exhibition lecture 'Weeks, months, 
        yeats in Greek and Roman calendars' with  'Time and Cosomos' 
        showw.. Free, adv regn reqd. isaw..nyu.edu isaw@nyu.edu, 
     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 
    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 - York College - QN - astronomy lecture . 
        Core Academic Bdg, Rm AC-2E01. Indoor lecture, clearsky 
        starviewing. Free, adv regn reqd. 718-262-2082, 
    21:00 - Poughkeepsie - NY - clearsky starviewing 
        Vassar College, Observatory. Free. Cancelled for clouds. 
    15:30 - Greenwich - CT - Astro Soc of Greenwich meeting 
        Bruce Museum. Free with musm adm. rickbria@optonline.net, 
        203-415-6762, astrogreenwich.org 
    17:00 - Simons Foundation - MH - scinece lecture 
        160 5 Av & 21 St. 'Strange new worlds'. Free, adv regn reqd. 
        646-654-0066, ww.simonsfoundation.org 
    18:30 - CUNY Graduate Center - MH - Science and the Arts show 
        'TNo, No, Nobel' on women who missedthe Nobel Prize for 
        their work. Free. 212-817-7521, bschwartz@gc.cuny.edu, 
     19:00 - Southampton - LI - astronomy lecture 
        Montauk Obsy, Southampton Cultural Center. Indoor talk, 
        clearsky starviewing. Free. www.montaukobservatory.com 
    19:00 - NY Academy of Sciences - MH - astronomy lecture 
        'The unification of physics: The ques for a Theory of 
        Everything'. $15, adv regn reqd. wwww.nyas.org, 212-298-8600 
   19:45 - West Reading - CT - clearsky starviewingh 
        New Pond Farm, obseratory. $10, adv regn reqd. , cancelled for 
        clouds. www.newpondfarm.org, 203-938-2117, 
    20:00 - Jones Beach St Pk - LI - astronomy lecture 
         Amat Obsrs Soc. Roosevelt Natr Ctr. Indooe lecture, clearsky 
         starviewing. $4, adv regn reqd. www.aosny.org, 516-785-3614, 

General News 
    I clarified the meaning of the notations in the 'index of events' 
section. Please recall that NYC Events ended the 'XXX' notation a 
couple years ago. I also renamed the 'ongoing conditions and 
situations' section to 'ongoing and continuing events'. 
    NYSkies freshened its web homepage to remove aged material and 
clean some text. It notes that PazMiniBits and SpaceWalk are suspended 
with their last issues left in place as examples. 
    May 2017 is the ABSOLUTE AND UTTER LAST CHANCE to enjoy the 
Ringling Brothers, Barnum and Bailey Circus!  And that chance is in 
NYSkies land!! The last of the greatest show on Earth plays in Nassau 
Coliseum on May 12-21. Some dates/hours may already be sold out.  
    Gullivaer's Gate is a new long-term, maybe permanent ,exhibition 
in the Theater District of Manhattan. It opened in mid April for 
preview at reduced ticket price, then goes full show on May 9. GG 
displays in exquisitely detailed miniature models many iconic 
buildings and places thruout the world, with a special area for New 
York City. See under 'ongoing and continuing events'. 
    Governors Island opens in 2017 on May 1, a month earlier than 
previously. Ferries run every day from Manhattan, on weekends from 
    World Science Festival runs 31 May-4 June in 2017. It stages a 
formal opening on the 30th with a black-tie theater/dinner/dance for 
Festival supporters . Please lay out your plans carefully because 
events may run concurrently or with too short time between them. See 
under May 31. 
    NYSkies at World Science Festival this year has a new function! In 
the stead of fielding an exhibit at the washington Square science 
street fair on June 4th, we provide technical and reference services 
at the starviewing in Brooklyn Bridge Park on June 3rd. Particulars 
under discussion with the Festival. 
     Astro Soc of New haven no longer uses Bethany Observatory, Yale 
University. Club does public starviewing at parks and beaches near New 
Haven, detailed in its web. 
    I moved Institute for Advanced Study to 'S/O' in case it opens a 
new season of seminars or similar meetings in the fall. It apparently 
had none in the 2016-2017 school year. 
    Institute for Study of Ancient World has a few remaining cultural 
talks in May, as noted in the 'index'.  Mistaken advice earlier had 
ISAW finishing its lecture series in April. 

City News 
       Several NYSkiers sat a short-notice lecture about Iohannes 
Kepler on 30 march 2017. It was at Bard Graduate Center, UWS MH with 
some 20 scholars attending. The presentation discussed Kepler's work 
in the 1590s, prior to his planetary motion laws. Kepler was already a 
COpernicus advocate and tried to show that the planet orbits fit into 
a set of nested polyhedra. Besides making drawings of the polyhedra, 
he built modles and mechanisms with them. 
    Penn Station was hit by rolling delays and service cuts, affecting 
all rail traffic thru it. On April 4, 2017, an Amtrak train derailed 
in the yard west of the depot, usually a minor incident. The train 
happened to rip out equipment tied to 8 tracks in Penn Station, 
slashing capacity for Amtrak, LIRR, and NJ Transit. While repairs are 
underway, expect service changes, delays, suspensions. 
    NYSkies Astronomy Seminar on 7 April 2017 examined the astronomy 
features of astrology software. By the 1990s astrology programs were 
using the same ephemeris algorithms as for astronomy, both producing 
the same planet and lunar data.  Astrology concentrates almost 
exclusively on the zodiac, represented in the classical 'wheel' chart, 
horoscope' as a circle graduated in signs/degree scale. Planets are 
marked by their symbols. The horizontal divide thru the center of this 
zodiac is the observer's horizon. The half above the horizon is the 
observer's sky, that below is hidden. At a lance we see which planets 
are up or not and the angular displacement among them. Some programs 
have a central angle dial to read out the elongation between any 
points in the zodiac, a feature crucial for astrologers but missing 
for astronomers. The inclination of the ecliptic is shown by the 
location of 'medium coeli', the crossing of ecliptic with local 
meridian. it is generally not centered at the top of the wheel but is 
shifted left or right. A left shift means the ecliptic runs in the sky 
more southeast to northwest; contrary for a right shift. The Moon has 
usually two additional markers: the apogee of her orbit and the 
ascending node. Both clue the astronomer to the Moon's latitude from 
the ecliptic and speed and angular size in the sky. When a new or full 
Moon is close to the ascending node, or opposite at the unmarked 
descending node, an eclipse is possible. Some program display info 
about immediately upcoming eclipses. Some programs mark the place of 
the previous and next full/new Moon, to judge the dates of dark Moon 
during observing hours. Astrologers monitor not only the instance of 
conjunction, or other alignment, but also the speed it develops and 
dissolves. Each planet in astrology, considering it as a bug on a flat 
sky, has a aura or 'orb' around it. When the orbs of two planets first 
touch the conjunction begins, when in the sky the planets are treated 
as somehow associated. Equality of longitude is the 'realization', the 
only event usually noted by astronomers. When the orbs break away the 
event is over, the planets no longer look associated./  Some programs 
generate charts for the event with the one planet 'attacking' the 
other, then 'retreating'.Astrologers note the start and end of 
retrograde, but astronomy software commonly don't show which state a 
planet is in. The wheel chart flags retrograde planets with a 'r' next 
to its symbol. A powerful astrology tool, not found in astronomy 
software, is a query for an arbitrary event. By keying in, thru a 
database-query code, a desired configuration of planets, the astrology 
program hunts up and tabulate instances of the configuration. 
Astronomy program do this for only a certain canned set of alignment, 
almost all with the Sun. Takeaways were several wheel charts labeled 
for different astronomy features, comparison of wheel to regular 
skymap, examples of event query, speed-position chart of planets. 
    The NYSkies astrosocial on 2017 March 31 was rained out. I was the 
only NYSkier for our delegation. An irritating steady rain held others 
away. In total there were only 6 visitors, three being students of 
ISAW. The tour explored several of the exhibit's sundials and 
calendars to illustrate cosmic view of the Greek and Roman world. 
    Ifeomia White-Thorpe, Morris Hills HS,Rockaway NJ, on April 5, 
2017, won the last of all eight acceptances for Ivy League colleges! 
She received several earlier in March-April but the final one, for 
Harvard, won her the clean sweep. The schools are Brown, Dartmouth, 
Columbia, Cornell, Harvard, Princeton, U of Pennsylvania, and Yale.  
    The new network of city-operated ferries starts on May 1 with the 
Rockaway route. It runs from Bh 108 St and Jamaica Bay,stopping at 
Brooklyn Army Terminal and Pier11-Wall St. Service has all-new 
catamaran boats with food service and WiFi. Fare is $2.75 with ferry's 
own tickets, not MetroCard. Transfers are allowed to other ferry 
routes but not to the City transit system. Four more routes start up 
in summer-fall 2017. 
        On 31 March 2017 ~19:50 EDST a manhole exploded in broadway at 
12th St, Manh. Caused by festering underground fire, the blast 
shattered windows along adjacent streets, including Strand books on 
the corner. Several streets were closed for repairs and Broadway 
subway line was closed for several hours. 
    On 13 April 2017 ~06:45 EDST  a downtown M101 bus burst into fire! 
The driver hobbled it to Lexington Av & 45 St,  where he discarded the 
riders. The fire consumed the motor bay and took firefighters about an 
hour to put out. Bus will be salvaged for spare parts else where in 
the vehicle. 
    Besides train problems at Penn Station, a stampede of some 10,000 
riders erupted on 2017 April 144 ~18:30  EDST. An Amtrak police downed 
a unruly man in the waiting room with a stun-gun. The gun-like device 
and its zap-crackle sound were taken as gunshots by rush hour crowds. 
Mobs in fleeing the depot caused at least 16 injuries from falls and 
bangs. On street, shouts of gun fire filtered into Macy's store, 
forcing a brief lockdown. Stampede was subdued by several police 
    NYS MTA in early April 2017 began investigating Daniel Brucker, 
about possible privately-run tours of Grand Central Terminal. Brucker 
is Director of Tours, taking groups along GCT-approved tours thru the 
depot's public and off-limits areas. Some NYSkiers took one of his 
walks, like on March 25 with a subway fan club. He is suspected of 
doing tours on his off-days without GCT knowledge, with stops at 
certain off-limits areas. Brocker is suspended during the 
    NYSkies Astronomy Seminar on April 21, 2017, discussed lunar 
observing. We treated the motion and position of the Moon in the sky 
several sessions ago and now looked at the lunar topography. It really 
requires at least a good binocular to appreciate the surface details 
of the Moon, there being few positively discernible by bare eye. We 
noted the sense of directions, according as we treat the Moon as a 
flat disc on the celestial sphere or a separate world.  Before the 
space projects, we only used the flat disc directions, the side of the 
Moon facing west in the sky is the western limb; east, eastern limb. 
Older lunar litterature adhaered to this convention. As a globe in 
space, when we starting sending spaceprobes to the Moon, the side on 
the east in the sky is the western limb; west, eastern. In the 1970-
1990 period lunar authors employed the one or the other, commonly with 
no notice of which. An other quirk was that traditionally astronomers 
placed south at top of photos and diagrams, matching the classical 
inversion of images in simple refractors. When the Moon is regarded as 
a globe, north is at top. Current lunar references have a north-up 
placement. in spite of the direction shift, older lunar material is 
still valuable for observing from Earth with small telescopes. Because 
the Moon has no air, there is no aerial perspective or soft shadows, 
or diffused sunlight. The scene is gross light and shade, making it 
hard to correlate a map with the scope view. The scene changes during 
the lunar day from sunrise, thru midday, to sunset. We suggested a 
exercise of photographing a landscape repeatedly during a sunny day, 
sunrise to sunset, like from a high floor window. The features look 
radicly different under the changing Sun angle. The line of 
sunrise/sunset is the terminator. For evening viewing the sunrise 
terminator is on the disc; morning, sunset. Some lunar observing 
programs have a database of mapping  from an orbiting probe like 
kaguya, Clemetine, LRO. The program renders the data into 
photorealistic displays, with appropriate shading and shadows. This 
is, a recent innovation of software authors,.  The web has many 
atlases and maps of the Moon, some digitized from former print 
editions. The plates are downloadable graphics which can be printed or 
examined on screen. We saw the effect of libration to nudge craters 
and maria to and from the lunar limb. The value of libration, in 
latitude and longitude, is the lat-lon on the Moon's selenographic 
scale that is centered on the disc. Or it's the lat-lon where Earth is 
in the zenith of the lunar sky. A good lunar software incorporates 
libration in the display for a given date and hour. Even a small scope 
may amplify the Moon's light to annoy or dazzle the eye. For casual 
viewing, the scope can be fitted with a subdiameter aperture made of 
cardboard. Or, to keep the telescope's full resolution, place a small 
ND1 photographic filter in the eyepiece tube.  We chatted up the 
origin of the Moon and wondered why it took so long to realizw that 
the massive bombardment on the Moon must also fall on Earth. on Earth 
weather, tectonics, earthquakes, glaciers, human land modifying, 
vegetation, more erase or hide the craters. Takeaways were map-photo 
comparisons, views of Copernicus crater at various points in the lunar 
day, set of evening Moon phases with and without feature labels, 
cartographic lunar atlas, examples of libration. 
    NYSkies starred at both NEAF and Earth Day in April 2017. Our 
table was handled a continual flow of visitors. For some reason this 
year thee was a higher interest in New York astronomy then normal, 
with banter and chat about the astronomy in the  City and other towns. 
I presented my talk about Manhattanhenge at NEAF on April 9th, 
igniting additional inquiries about new York astronomy. Since many 
visitors are convenient to the City, we may see them at our Seminars. 

 Sky News 
    April 2017 was a lousy stargazing month, with most nights clouded 
over. many were also rainy. The adverse sky killed off the omega 
Centauri challenge and GLOBE at Night. I heard of wide-spread 
cancellations of regional starviewings due to recurring clouds 
   The final round of GLOBE at Night for NYSkies, 2017 Apr 18-27, was 
almost a total cloud-out. On the two evenings of clearish sky, on the 
18th and 23rd, twilight dulled Orion to only 1st or 2nd magnitude 
transparency. GaN dates  avoid evening Moon, which were in mid-late 
April, when Orion was edging into twilight. 
    Observers are watching Jupiter, well up in southeast at nightfall 
in April 2017. Some were surprised that the moons weren't lined up 
neatly across Jupiter. Jupiter's moon plane this year is titled a from 
edge-in, causing the moons to pass on the north or south side of the 
Jovian disc. 
    Midnight observers are starting to inspect Saturn in Ophiuchus-
Sagittarius. He'll be in southeast at nightfall in mid May. 
    Occultations of Hyades and Aldebaran continue thru spring and 
summer 2017, now in the predawn sky. Astronomers are already psyching 
up for the Porrima occultation in July! We  then see TWO occultations 
at once. 
    The omega Centauri challenge in April 2017 was killed by cloud and 
haze. No night was clear enough for a good chance to see this cluster.  
2017 is the first year we extended the program into April. Until now 
it was only in May. The challenge continues into May but twilight may 
then interfere. See under May 1. 
    The spring season for seeing the Milky Way from within the City 
opens on May 1st. Hopefully weather will improve to let the brighter 
patches of the summer Milky Way be seen in predawn hours. See under 
May 1. Season runs thru June 30.