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 NYC EVENTS FOR FEBRUARY 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 Standard Time (UT - 5h). 

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. 
  #, NYSkies Astronomy Seminar 
  Moon phase: .NM., .FQ), (FM), (LQ.  
  Sunset is noted for each Saturday  
  ---------------------------------
  Sun   Mon   Tue   Wed   Thu   Fri   Sat  sunset 
  ---   ---   ---   ---   ---   ---   ---  -----
 -(27.  -28   -29   -30   -31     1#    2  17:15 
    3    .4.    5     6     7     8     9  17:23 
   10    11   .12)   13    14    15#   16  17:32 
   17    18   (19)   20    21    22    23  17:40 
   24    25   (26.   27    28    +1#   +2  17:48 
 ------------------------------------------------

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 
  Canarsie line closings  -  0 
 *Floyd Bennett Field - - - SPR 
  Secret Science Club - - -  0 

    CONNECTICUT - CT 
 *A S of Gtr Hartford   - - 20 
  Astro Soc of Greenwich  -  3 
 *Astro Soc of New Haven  - 26 
  Bowman Observatory  - - -  6, 20 
 *Litchfield Hills AAC mtg   8 
 *Litchfield Hills starvg - 22 
 *McCarthy Observatory  -    9 
  New Pond Farm - - - - - - ??? 
  Stamford Observatory  - -  1, 8, 15, 22  
 *Van Vleck Obsy (ASGH) - - 16 
  Van Vleck Obsy (WU) - - -  6, 13, 20, 27 
  Western CT St Univ Obsy - SPR 
 *Westport Astro Soc mtg  - 19 
 *Westport Astro Soc starvg  6, 13, 20, 27   
  -------------------------
  Boothe Meml Astro Soc - 203-377-9933, 
    www.facebook.com/Boothe-Memorial-Astronomical-Society 

    LONG ISLAND - LI 
 *Amateur Observers Soc - -  3 
 *Amat Obsrs Soc starviewing 0 
  Amer Instt Aero & Astro - 21 
  Astro Soc of Long Island   6, 13, 20, 27 
  Brookhaven National Lab - ??? 
  Custer Institute  - - - -  2, 9, 16, 23 
  Hofstra Univ Obsy - - - -  3 
  Montauk Observatory - - - ??? 
  SUNY Stony Brook - -  - -  1 
 *Susan Rose Observatory  -  2, 9, 16, 23 
 
    MANHATTAN - MH  
 *Amat Astro Assn starvwg -  0 
 *Amat Astro Assn lecture    8 
  Amer Instt Archarology  - 27 
  Ctr for Atmosp Ocean Sci  13 
  Ctr for Science & Society ??? 
 Central Pk (Great Lawn)  -  1,2,3,8,9,10,15,16,17,22,23,24 
 *Columbia Univ Obsy  - - -  1, 15 
  Cornelia Street Cafe'   - SPR 
  Earth Institute - - - - - ??? 
  Globe at Night - - - -  -  1-5, 27-Mar 7 
  Good Housekeeping lab   -  8      
  Greenwich Vg bookfair - - 16-17 
  Gullivarr's Gate- - - - -  0 
  Instt Stud Ancnt World  -  5, 12, 19, 26 
  Intrepid AstroCafe' - - - SPR 
  Intrepid Astro Night  - - SPR 
 *Inwood Astronomy Project   2, 9, 16, 23 
  Metro Engg Soc Council  - 12 
  Natl Musm of Mathematics   6 
  NY Academy of Sciences  - SPR 
  NYC-H2O - - - - - - - - -  0 
 NY History of Science  - - ??? 
  New York Map Society  - - SPR 
  New York Univ Astro - - -  5, 12, 19, 26 
 *NYSkies Astronomy Seminar  1, 15 
  Presidents Day  - - - - - 18 
  SciCafe'  - - - - - - - -  6 
  Simons Foundation - - - - 27 
  Top of the Lawn - - - - -  1,2,3,8,9,10,15,16,17,22,23,24      
  TriState computer fair  -  0 
  Urban Park Rangers -  - -  0 
  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 - - -  8 
  Mid-Hudson Astro Assn - - ??? 
  Ramapo Challenger Ctr - - 17 
  Rockland Astro Club - - - ??? 
  Vassar College Obsy - - -  6, 13, 20, 27 
  Ward Pound Ridge  - - - - SPR 
  Westchester Amat Astro  -  1 

    NEW JERSEY - NJ  
  A A A of Princeton  - - - 12 
 *Amat Astro Inc meeting  -  1, 8, 22 C *Amat Astro Inc lecture  -15 
  A S of Toms Rv Area - - - ??? 
  Morris Musm Astro Soc - - 14 
  New Jersey Astro Assn - - SPR 
  North Bergen Viaduct  - -  0 
  No Jersey Astro Gp mtg  - 13 
  No Jersey Astro Gp starvg SPR 
  Peyton Observarory  - - - ??? 
  Plasma Physics Lab  - -    1, 15 
  Rutgers Univ Astro Collqm  6, 13, 20, 27 
  Rutgers Univ Astro Semnr   7, 14, 21, 28 
 *S*T*A*R - - - - - - - - -  7 
  Schommer Observatory  - - 14, 28 
 *Sheep Hill Astro Assn - -  1 
 *Sheep Hill Observatory  - 15 
 *Utd Astro Clubs of NJ - - SPR 
  Washington Xing St Pk - - SPR 
  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 

    QUEENS - QN  
  Alley Pond Park - - - - - SPR 
  York College Observatory  13 

    REST OF WORLD 

     STATEN ISLAND - SI 
  Coll of Staten Is Obsy  - SPR 
  Great Kills Park  - - - - SPR 
  Staten Is Community TV  -  1, 8, 15, 22 

    THE BRONX - BX 

 ============================= 

Ongoing and continuing events 
  --------------------------qall day - H&M ETC sline - MH - ETC 
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 qall day - H&M ETC sline - NJ - ETC 
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 - occasional weekend shutdown 
        CERTAIN WEEKENDS; INQUIRE AT CONTACT 
        Thru March 2019. Canarsie line closes on about a dozen 
        specific weekends for preliminary work in advance of total 
        shutdown in april 2019. No service bten Bway Jc and 8th Av 
        from 22h Fri to 05h Mon. Trains run only Canarrsie to B'eay 
        Jc. WEekends may change based on work progress. 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, 

list of Events 
 ------------                                                         
Fri 1 Feb 
    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 
    18:30 - McBurney House - MH - NYSkies Astronomy Seminar  
        DISCUSSION: ECLIPSE REPORTS, SKY DIRECTIONS & ORIENTATION 
        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     
    19:0:0 - 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 
    19:00 - whole CIty - MH - Globe at Night exercise 
        Thru Feb 5. NYSkies runs its own Globe at Night exercise in 
    19:30 - Boonton - NJ - Sheep Hill Astro Assn meeting  
        Boonton Senior Ctr. Free. www.sheephillastro.org, 
        contacts@sheephillastro.org, wwestura@optonline.net 
    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 - 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 
        2018-2019 while Orion is in sky at nighfall. Same method and 
        procedure as for prior years for documenting sky transparency 
        over City. Details at www.nyskies.org/gannyc.htm. 
    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 

Sat  2 Feb 
    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 - Central Park - MH - clearsky starviewing - see Feb 1 
      
Sun  3 Feb 
    13:15 - Uniondale - LI - Amat Obsrs Soc meeting. 
        Hofstra Univ, Berliner Hall. Free. www.aosny.org, 
        suerose@optonline.net 
    15:30 - Greenwich - CT - Astro Soc of Greenwich meeting 
        Greenwich Public Library. Free with musm adm. 
        rickbria@optonline.net, 203-415-6762, astrogreenwich.org 
     18:00 - 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 Feb 1 
      
Tue  5 Feb 
    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 
    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 
      
Wed  6 Feb 
   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 
     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 
    19:00 - 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 
    20:00 - Middletown - CT - clearsky starviewing 
        MEETS EVERY WEDNESDAY ONLY DURING CLASSES; INQUIRE AT CONTACT 
        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, 
        www.asliclub.org 
    20:00 - Westport - CT - clearsky starviewing 
        Westport Astro Soc. Rolnick Obsy.  Free. Cancelled for clouds. 
        www.was-ct.org, 203-227-0925 
    21:00 - Poughkeepsie - NY - clearsky starviewing 
        MEETS EVERY WEDNESDAY ONLY DURING CLASSES; INQUIRE AT CONTACT 
        Vassar College, Observatory. Free. Cancelled for clouds. 
        physicsandastronomy.vassar.edu/observatory.html, 
        845-437-7340 
       
Thu  7 Feb 
    13:30 - Piscataway - NJ - astronomy lecture 
        Seminar series. Rutgers Univ, Serin 401. Free. 732-445-3974, 
        www.physics.rutgers.edu/ast/seminar 
    20:00 - Lincroft - NJ - S*T*A*R meeting 
        Brookdale Commty Coll, Mommouth Museum. Free. 
        www.starastronomy.org, s-walters@comcast.net 
       
Fri  8 Feb 
    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 
    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, 
    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 
    19:30 - Torrington - CT - Litchfield Hills Amat Astro Club mtg 
        Central Congregational Church. Free. 
    19:30 - Cranford - NJ - Amat Astro Inc meeting - see Feb 1 
    19:30 - Staten Is Community TV - SI - science show - see Feb 1 
    20:00 - Stamford - CT - astronomy lecture - see Feb 1 
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1 
       
Sat  9 Feb 
    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 - Susan Rose Obsy - LI - clearsky starviewing  - see Feb 2 
    20:00 - Inwood Hill Park - MH cleasky starviewing - see Feb 2 
    20:00 - Southold - LI - Custer Institute meeting  see feb 2 
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1 
       
Sun 10 Feb 
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1 
       
Tue 12 Feb 
    14:00 - New York University - MH - astronomy lecture - see Fen 5 
    18:00 - Inst Stud Anc World - MH - cultural lecture - see Feb 5 
    19:00 - DC37 HQ - NH - science lecture
        Metro Engg Soc Council. 125 Barclay St. "US nuclear industry 
response to Fukishima'. Free. Opt $50 dinner at 17:30. 
www.mescnyc.org, info@mescnyc.org 
    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 13 Feb
   10:30 - Piscataway - NJ - astronomy lecture - see Feb 6 
    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 
    19:30 - 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, 
    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 - Middletown - CT - clearsky starviewing - see Feb 6/ 
    20:00 - Westport - CT - clearsky starviewing - see Feb 6
    20:00 - Centerport - LI - Astro Soc of LI meeting - see Feb 6
    21:00 - Poughkeepsie - NY - clearsky starviewing  see Feb 6
       
Thu 14 Feb
    13:30 - Piscataway - NJ - astronomy lecture - dee Feb 7/ 
    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 
    20:30 - 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 
       
Fri 15 Feb
    10:00 - Princeton - NJ - science tour - see Feb 1
    18:30 - McBurney House - MH - NYSkies Astronomy Seminar  
        DISCUSSION: THE HERTZSPRUNG-RUSSELL DIAGRAM
        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 
    19:0:0 - Columbia University - MH - astronomy lecture -see Febb 1 
    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         
    19:30 - Staten Is Community TV - SI - science show - see Feb 1 
    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 Feb 1
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1
    20:30 - Boonton - NJ - clearsky starviewing  
        Sheep Hill Astro Assn Obsy, Free. Cancelled for  
        clouds. sheephillastro.otg, contacts@sheephillastro.org, 
        wwestura@optonline.net 
       
Sat 16 Feb 
  11:00 - P S 3 - MH - Greenwich Village Antqn Book Fair 
        Thru Sun 17 Feb. 490 Hudson St & Christopher St. Deep source 
        for astronomy books, maps, prints, posters. $15, 2-day tkt.
        www.ps3nyc.org/bookfair.htm, www.gvabookfair.org, 
        gvabookfair@gmail.com, 516-657-6212 
    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 feb 2 
    20:00 - Inwood Hill Park - MH cleasky starviewing - see Feb 2
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see Feb 2

Sun 17 Feb
    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,
        www.ramapoparks.org, 
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1

Mon 18 Feb 
    all day - whole City - MH -Presidents Day 
        Please check with event contact for session falling on this 
        day by rule or outdated schedule 

Tue 19 Feb 
    14:00 - New York University - MH - astronomy lecture - see Fen 5 
    18:00 - Inst Stud Anc World - MH - cultural lecture - see Feb 5 
    20:00 - Westport - CT - Westport Astro Soc meeting 
         Rolnick Obsy. Free. www.was-ct.org, 203-227-0925 
  
Wed 20 Feb
   10:30 - Piscataway - NJ - astronomy lecture - see Feb 6 
    19:00 - Greenwich - CT - clearsky starviewing - see Feb 6 
    20:00 - Westport - CT - clearsky starviewing - see Feb 6 
    20:00 - Middletown - CT - clearsky starviewing - see Feb 6
    20:00 - Centerport - LI - Astro Soc of LI meeting - see Feb 6
    21:00 - Poughkeepsie - NY - clearsky starviewing  see Feb 6
  
Thu 21 Feb 
    13:30 - Piscataway - NJ - astronomy lecture - dee Feb 7/ 
    18:30 - bethpage - LI -  Amer Instt Aero & Astro lecture       
        Bethpage Public Library. Various topics in 
        aeronautics and astronautics. 'Nars sample return missiOn'. 
        Free, optional $5 pizza-soda. 516-458-8593, davidparis@twc.com 

Fri 22 Feb
     19:00 - Litchfield - CT - Litchfield Hills A A C lecture 
        White Meml Consrvn Ctr. Free. Indoor lecture, clearsky 
        starviewing. lhaacsec@gmail.com, lhastro.org 
    19:30 - Cranford - NJ - Amat Astro Inc meeting - see Feb 1 
    19:30 - Staten Is Community TV - SI - science show - see Feb 1
    20:00 - Stamford - CT - astronomy lecture - see Feb 1
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1

Sat 23 Feb
    20:00 - Inwood Hill Park - MH cleasky starviewing - see Feb 2
    20:00 - Southold - LI - Custer Institute meeting  see feb 2
    20:00 - Susan Rose Obsy - LI - clearsky starviewing  - see Feb 2
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1

Sun 24 Feb
    20:00 - Central Park - MH - clearsky starviewing - see Feb 1

Tue 26 feb 
    14:00 - New York University - MH - astronomy lecture - see Fen 5 
    18:00 - Inst Stud Anc World - MH - cultural lecture - see Feb 5 
    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 27 Feb
   10:30 - Piscataway - NJ - astronomy lecture - see Feb 6 
    17:00 - Simons Foundation - MH - scinece lecture 
         160 5 Av & 21 St. 'Learning to count in string theory''. 
        Free, adv regn reqd. 646-654-0066,          
        ww.simonsfoundation.org 
    18:30 -Hunter College - MH - Amer Instt Archaeolgy lecture 
        46 E 70 St. Various topics on archaeology and anthropology. 
        Free, adv regn reqd. www.aia-nysociety.org, 
        info@aia-bysociety.org 
    98:00 - whole CIty - MH - Globe at Night exercise 
        Thru mar 7. NYSkies runs its own Globe at Night exercise in 
        2018-2019 while Orion is in sky at nighfall. Same method and 
        procedure as for prior years for documenting sky transparency 
        over City. Details at www.nyskies.org/gannyc.htm . 
    20:00 - Middletown - CT - clearsky starviewing - see 6 Feb 
    20:00 - Westport - CT - clearsky starviewing - see Feb 6
    20:00 - Centerport - LI - Astro Soc of LI meeting - see Feb 6
    21:00 - Poughkeepsie - NY - clearsky starviewing  see Feb 6

Thu 28 Feb 
    13:30 - Piscataway - NJ - astronomy lecture - dee Feb 7/ 
    20:30 - Piscataway - NJ - clearsky starviewng - see Feb 14 

 Events Skipped This Month 
 -----------------------                                          
  EVENT MAY RESUME AT DIFFERENT PLACE OR HOUR; INQUIRE AT CONTACT 
  --------------------------------------
  --------------------------------------
  [SPR] SPRING RESUMPTION OF ACTIVITY 
  --------------------------------------
    14:00 - World School - MH - New York Map Society lecture 
        11 W 26 St, 7th fl, upstairs from MoMath. 'Mapping the 
        heavens'.Various topics about map making, cartography, 
        geography. Free, adv regn reqd. www.newyorkmapsociety.org, 
        mapsociety@ny@gmail.com 
     16:30 - 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 
    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 
   19:00 - 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, 
    19:00 - NY Academy of Sciences - MH - astronomy lecture 
        'The nystery of our mathematical universe'. $20. www.nyas.org 
     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 
     19:30 - Intrepid Museum - MH - astronomy lecture 
        Flight deck of ship. Indoor/open air lecture, clearsky 
        starviewing. Free. www.intrepidmuseum.org 
    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 - 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 - Jenny Jump St Forest - NJ - Utd A C of NJ mtg 
        UACNJ Obsy. Indoor talk, clearsky starviewing. Free.  
        www.uacnj.org 
      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 
        www.westchesterastronomers.org, 
    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;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 
    20:30 - Voorhees St Pk - NJ - NJ Astro Assn meeting 
        NJAA-HQ, Robinson Obsy. Indoor lecture, clearsky 
        starviewing. Free. www.njaa.org, 908-368-8500 

  --------------------------------------
  [???] UNCERTAIN RESUMPTION OF ACTIVITY 
  --------------------------------------
    15:00 - Upton - LI - science lecture 
        Brookhaven Natl Lab.Bldg 510. 'Weighing galaxy clusters with 
        weak lensing in Hyper Suprime-Cam Survey'. Free, have GI photo 
        ID for  campus security. 631-344-2651, www.bnl.gov/evnts 
    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 
    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,
       212-854-7211, scienceandsociety.columbia.edu
    18:00 -CUNY Graduate Center - MH - NY Hist of Sci lecture
        385 Fifth Av. 'Early modernb science intertwine An
        Iberoamerican perspective'. Free, adv regn reqd.
        212-854-7211, scienceandsociety.columbia.edu
    18:30 - West Reading - CT - clearsky starviewingh 
        New Pond Farm, obseratory. $10, adv regn reqd. , cancelled for 
        clouds. www.newpondfarm.org, 203-938-2117, 
    19:00 - Bridgehampton - LI - astronomy lecture 
        Montauk Obsy. South Fork Natl Hist Musm. Indoor talk, clearsky 
       starviewing. Free. www.montaukobservatory.com 
    19:00 - 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 
    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 
    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 - 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 

General News
 ----------
 ---february sees the resumption of activity hibernating thru the 
winter. Some started in late january, missing that issue of NYC 
Events. More resumptions come in march and April. 
    Some events, almost all in the rural sectors of NYSkies, were 
called off from icy roads or balky rails during January 2019. Please 
inquire at the event contact in case of possible weather-related 
cancellations.
    NY Hist of Sci for spring 2019 posts its lectures separately from 
its roff outfit Ctr for Sci and Soc. I give each its own entry, both 
in Manhattan. tHEIR fEBRUARY MEETINGS HAVE LITTLE OF INTEREST FOR 
ASTRONOMERS, PLACING THE ORGS IN THE '???' SECTION.
    Instt for Study of Ancient World returns to its normal weekly 
lectures, all at 18h.for a couple months it had more frequent sessions 
at various hours, sometimes associated with an current exhibition.
    Astro Soc of Toms Rv Area helped with analyzing a 
possible eteorite  found in Silver Lk NJ. Club is still active but 
its events page is out of order. I leave it in the '???' section. 
    Van Vleck Obsy and Vassar Coll Obsy start their spring 2019 season 
in February. I that I leave their entries for every Wednesday but some 
days may be skipped when classes are off-duty. Please inquire at the 
contact before going aa session. 

City News
  ------On 2019 January 2 NYS Gov Cuomo called off the spring total 
closing of the Canarsie subway line. He said the line can continue 
service with only brief interruptions to repair the Sandy-wrecked 
tunnels under east River. he told NYS MTA to cancel current contracts 
and work them over with the new regimen of operatiion.
    PATH on 2019 January 5 started weekend shutdown of its station 
under WTC. Plan allows PATH to repair Hudson River tunnels between WTC 
and jersey City NJ, damaged by hurricane Sandy. Closure is every 
weekend from 00h Saturday to 05h Monday thru end 2020. PATH trains 
heading to WTC short-turn at Exchange Pl station. From there riders 
may transfer to ferry to Battery Pk City. They may also take the 
33rd St branch and  connect to subways on Manhattan for the WTC 
vicinity. NYSkies Astronomy Seminar on 4 January 2019 started the new 
year with preparation for the great lunar eclipse. This occurs across 
midnight of January 20-21 over all of NYSkies. We reviewing the 
mechanics of lunar eclipses, where the Moon slides thru the shadow of 
Earth at Full Moon. We studied a shlock diagram of sun-Earth-Moon and 
discussed the gross out-of-scale layout. All diagrams fitting on a 
letter page are hideously distorted both in size and separation of the 
orbs. A true scale diagram would be immensely long For an Earth of 
10mm diameter on paper the Sun would have to be a full meter across and 
stand some 100 meters away. We learned about the two zones of the 
shadow, umbra and paenumbra. An observer in the umbra sees the Sun 
completely covered by Earth. In the paenubra he sees the sun partially 
covered by Earth. For practical purposes we during the eclipse do not 
notice the paenumbra because the sunlight in it is only partly cut 
off, causing little dimming. Only very close to the edge of the umbra 
could the paenumbra be dark enough to notice as a dusky shading on the 
lunar limb where a few minutes later the umbra will arrive. We noted 
the shift in reference during the eclipse. we may fix on the Moon and 
let the shadow pass over her. We may fix on the shadow, almost 
stationary in the stars,, and let the Moon pass thru it. Both ways are 
correct. We saw how the Moon's orbit is tilted to the Sun's [apparent] 
orbit, it being simpler to hold Earth still and let Sun and Moon 
circle around her. The Moon at full phase can pass south or north of 
the umbra, with no eclipse. if the lunar orbit is edge-on to the 
umbra, the Moon passes thru it for an eclipse. We discussed how the 
physical sizes of the bodies allow for a generous leeway off of exact 
alignment to make an eclipse. if the three were points there would 
never be a perfect lineup. We traced possible paths of Moon thru umbra 
to simulate various eclipses. For a full immersion we have a total 
eclipse, like in january. A little far from the line-up, along the 
line of nodes of the two orbits, the Moon slides off center thru the 
umbra and is only partly covered, for a partial eclipse. Farther again 
from the nodal line the Moon misses the umbra for no visible eclipse. 
She could dip into the paenumbra but there is no noticeable dimming of 
the Moon. We disinquiched between a solar eclipse, dependent on the 
observer's location on Earth, and a lunar eclipse, with same aspect 
from all places where the Moon is in the sky. We bantered about the 
2017 solar eclipse which most of us at the meeting saw. When we plot 
the line of nodes, full Moon, and midnight on a calendar we get a set 
of triangles among all three lines. The smaller the triangle, the more 
likely a lunar eclipse will take place. We examined  one such plot I 
did in 4972 to demonstrate eclipse in year 1973. This plot also has a 
line for the Sun to cover solar eclipses.  We then examined a 
published plot of eclipses for the 1990s-2000s. This showed the 
bunching of eclipses into two segments of the year with none in 
between because the Moon is too far from the nodal line. We next 
looked at the timetable for our January eclipse/ By mere lick the 
eclipse is centered on local midnight, putting the Moon in high south 
sky for most of the event. The Moon sits in Cancer, a few degrees west 
of M44 cluster, as shown in a full sky map and a close-up of the 
eclipse vicinity.  During slack moments in totality there are many 
deepsky objects to explore near the Moon. Or we could just admire the 
slow revelation of stars as the Moon's brilliance ebbs. We compared 
the midnight map, near mid eclipse, to the nightfall map for winter 
skies. We saw how the sky rotated to move the winter stars to the 
southwest and bring in more of the spring stars in the east. We then 
studied the aspect of the sky during the eclipse as seen from the 
Moon. The Earth intervenes between Sun and Moon causing a solar 
eclipse for the lunar resident. Simulations of this eclipse were 
studied, created with a solar system software centered on the Moon. 
with no air on the Moon to blind us from seeing the corona and other 
solar eclipse features, we really don't need a solar eclipse. We could 
mechanicly cover the Sun at will when we want to examine the Sun 
outside his photosphere. a historical note came when we realized the 
Earth's shadow on the Moon is always part of a circle. This happens no 
matter how the Earth is turned toward the Moon. The only geometric 
shape that can do this is a sphere, giving strong evidence that the 
Earth is a sphere. An illustration from a mediaeval astronomy book 
emphasized this conclusion. Astrology software can yield interesting 
features of the lunar eclipse that aren't easily given by astronomy 
softwares. A horoscope chart for mid eclipse dramaticly shows the 
opposition of Sun and Moon relative to the zodiac. The horoscope also 
shows the position of the lunar ascending node and apogee. We realized 
that the Moon is only 4 degrees from the node,, within the limit for 
a total eclipse. We also saw the Moon is close to her perigee, 180deg 
from apogee, meaning the Moon is little larger than average and moves a 
little faster than average. This eclipse by these factors lasts a 
little shorter than average for the same path thru the umbra. We also 
spotted the conjunction of Venus and Jupiter not yet risen during the 
eclipse! This would cap off a long night of eclipse watching when they 
rise in morning twilight. Astroloers take careful note of the speed of 
planets as well as position. a chart from an astrology program plotted 
the speed, degree/say, of the Moon as she circulates thru the zodiac 
in January 2019. Her highest speed is close to the eclipse. For those 
with telescopes -- binoculars really giving the most pleasing view -- 
we found that we can follow the umbra by timing when it crosses 
various small bright craters. Both covering and uncovering can be 
noted. We can also work occultations which with a normal full Moon 
would be hard or impossible to observe. Myrna Coffino brang a snack 
kit of cheese-&- crackers and cupcakes. These supplemented Jim 
Henderson's pizza and soda. Gregory Homatas supplied lunar phase 
calendar for 2019 to show the slippage of full Moon thru the months. 
Takeaways were pictures and diagrams of eclipse mechanics, plots of 
Moon-Sun-node in calendar layout, sky charts for mid eclipse,  eclipse 
timetable, simulations of solar eclipse seen from the Moon, astrology   
horoscope and speed graph, sample crater timings and occultation map.  
    Newark airport, was forced to close on 2019 Jan 22 ~16h EST by a 
hobby drone nearby. it was first spotted ~1,000m over Teterboro 
airport, ~35k, n of newark. Incoming flights were diverted and 
departures were held on ground. Drone apparently landed somewhere, 
allowing newark to resume partial operations at 17:45 and full service 
at 19:00. Port Authority and US FAA are investigating the incident. 
    NYSkies Astronomy Seminar on 18 January 2019 was packed with 
members and topics! We began with a load-U-go discussion of the lunar 
eclipse of jan 20-21. We studied charts of the Moon's pass thru the 
Earth shadow and the general sky at mid eclipse. Er clarified the 
distinction between the Moon's eart-west diurnal motion  and her west-
east orbit motion thru the shadow. We next looked at the conjunction 
of Venus and Jupiter centered on January 222. We gain demonstrated 
diurnal and orbit motion. The next topic was a news item sent to me by 
Myrna Coffino. It explained the 'runaway pole', the north magnetic 
pole racing off of Canada, into the Arctic ocean, toward Russia. The 
NMP since discovery in 1830s wandered around in northern Canada. In 
the late 1990s it suddenly  speeded up to zoom into the Arctic Ocean. 
This pole, and its southern mate, determine the magnetic field at and 
near ground level. This field is remapped every five years to account 
for the displacement of the two poles, with the next revision due in 
2020. The NMP is running away so fast that NOAA early in 2018 planned 
to remap the field now, ahead of 2020. With the US government shutdown 
of December  NOAA has to hold off the remapping. The main topic was 
spectrometry, confined for now to the classification of stellar 
spectra. Details of how spectra are generated what information we 
extract from them is deferred for a future Seminar. We traced the 
history of spectrometry from Newton's day thru Fraunhofer, who first 
mapped the spectrum from the Sun. We learned that each chemical 
element produces a unique spectrum with its own set of dark or bright 
lines. The 'lines' are artificially made within the spectrometer for 
ease of inspection and study. Matching these lines with those in a 
target's spectrum identifies the elements present in the target, 
Fraunhofer lettered the major and some minor lines in the Sun's 
spectrum, such as the  C line (from hydrogen), D (sodium) and pair H&K 
lines (calcium). We saw how spectra of other stars resembled and 
differed from the Sun's. The sorting out improved with the 1890s 
arrangement in order of the density of the lines produced by hydrogen 
and lettered A thru O. When temperature was discovered as the primary 
force generating spectra, the sequence was shuffled into high-low 
temperature. The letters were left alone, resulting in the current 
jumbled alphabet sequence OBAFGKM. We discussed the construction of a 
spectroscope, noting that there were no cheap competent ones for home 
astronomy. There are many at sale designed for bright light sources, 
like the Sun and lamps. We took a break to inspect spectra of local 
lights thru a small homemade spectroscope. it had a shoot of rainbow 
plastic at the eye end and a cardboard slit at the target end. Jim 
Henderson offered his multi-color pocket torch as an other target to 
study. We found out that we all play with spectra every day! a pocket 
radio traces across frequencies in the radio range and receives 
'bright line' emission from radio broadcasts. We followed the shift of 
photographic spectra to digital graphs, which occurred in the 1980s. 
Today photographic spectra, spectrograms, are produced for public or 
illustrative uses. We work only with the digital profile. We do not 
bother with the colors, they having no physical meaning. Spectrograms 
were taken only on B&W film and digital profile have no color 
information. We learned how temperature excites or ionizes atoms in 
the star to yield lines. The spectrum consists of an envelope or 
continuum, the 'nand of color', with the lines impressed into it. The 
shape of this continuum plus the mix of lines in it fix the star's 
temperature. We studied a table of spectral classes with details of 
the temperature and description of the major lines. We skipped the 
decimal parts of a class, staying just with the main letter. Some 
classes lack all ten parts for historical and technical reasons. We 
explored the units of measure in spectrometry. In the optical part of 
the electromagnetic spectrum we use wavelength, In some other parts we 
use frequency or energy. All three are commutable with each other. 
Wavelength historicly is dimensioned in angstroms, after Angstrom,  
mid 1800s spectrometrist. one angstrom is 1e10 meter, there then being 
no formal prefix for very small fraction of a meter.  The current unit 
is the nanometer, equal 10 angstrom. Both measures are in concurrent 
use in astronomy. We explained the notation for ionization, the 
removal by temperature of electrons from an atom. In physics the 
neutral atom with all electrons is in its quiet lowest energy state, 
denoted roman number I. An atom with one electron removed is in the 
next higher state, II, and so on.The roman number is one greater than 
the actual number of removed electrons. In Chemistry plus signs are 
used to explicitly show the missing electrons. The atom has a net 
positive charge from its protons no longer netted out by these 
electrons. An atom with three electrons removed is +++, and so on. 
Both methods are in wide use in astronomy, such as Fe V the same as 
Fe++++.We looked at Kirchoff's law for creating a continuum, bright 
line, and dark  line spectrum. The latter two are also called emission 
and absorption spectra because the bright line is an excess output of 
energy at its wavelength while a dark line is a decess of output. 
Historicly this help solve the mystery of nebulae, which did not 
resolve into stars under better telescopes in the 19th century. 
Huggins looked at the spectrum of a globular nebula (I forget which 
one) and saw it had only bright lines. If it was really made of 
unresolved stars it would have a continuum spectrum with some dark 
lines. the nebula was a thin could of gas. We looked at spectra of 
other celestial objects: a comet, Uranus & neptune, a radio source, and 
luminous graffiti in the night sky,atmospheric distortion of solar 
spectrum,  front-end wide field spectrum, slitless spectrum of 
globular nebula. We wrapped up with two diagrams with all wrong paths 
for the light passing thru a prism. These came from webs tracking 
about spectroscopy! The entire session was filled with additional 
questions and remarks from the members. many of us asked for further 
discussion of spectra, like the generation of lines by atomic 
structure and the HR Diagram. These are excellent topics for future 
meetings. Takeaways were data and charts of the lunar eclipse, chart 
of the Venus-Jupiter appulse, maps of the N and S magnetic pole 
displacement, historical pictures of spectra, comparison of photo and 
digital spectra, sample datafile for a digital spectrum, sample 
spectra of elements, illustrations of dark and bright line spectra, 
photo and profile spectra for spectral classes, pictures of tabletop 
prism and grating spectroscopes, several nonstellar spectra, erroneous 
light paths thru prism. We ran a little overtime! The session, which 
began on time, closed lights and door at quite 9:50PM. 
    A 50cm diameter water main burst on 2019 Jan 23 ~05:50 EST under 
14 St & 7 Av, Chelsea. This is at the far corner of our Seminar's 
block. Flooding in area closed gray and red subway lines and diverted 
road traffic. Train service was restored in mid morning, repairs to 
pipe and street continued for a few says. 
    The Holocaust Remembrance at the United nations, 28-31 Jan 2019, 
is in progress at issue time. Several NYSkiers signed up to attend on 
one or an other day. I'll report on them in the March NYC Events. 

Sky News
 ------
    Overall January was a poor observing month. many special celestial 
events were clouded out over NYSkies. These included the flyby of 
comet Wirtamen at Capella, Quadrantid meteor shower (altho a large 
Moon would have tempered the show), Globe at Night measurements, 
Jupiter-Venus conjunction. The one grand exception was the lunar 
eclipse on the 20-21. The sky was clear and dark with roving scattered 
clouds. The clouds masked the Moon from time to time but did not 
seriously impede viewing the wonderful show. The air was, uh, frigid, 
the coldest so far in 2019, with stiff wind driving a deep chill 
factor.Reports are coming in at issue rime. They'll be summarized in 
the Mach 2019 NYC Events. 
    I, likely many other astronomers, made a Globe at Night assessment 
during the lunar eclipse on 2019 Jan 20-21. This supplements the 
standard schedule, like Earth Hour does in March, to add an other 
datum point in logging the general condition of the sky. 
    The pass of Capella by comet Wirtamen was clouded out in NYSkies 
over the New Year's weekend. My own viewing of the comet ended in the 
couple clear nights between Christmas and New Year's. Until then i saw 
the comet four or five times, enough to fill my desire to follow a 
bright comet in a night sky. It always looked like a large globular 
cluster in binoculars  with no hint of tail. At the 2019 January 4 
Seminar a couple members reported trying to see Wirtamen and failed 
from hazy sky reflecting ground lights. 
    Reports of the lunar eclipse are coming into NYSkies! Every one 
who toughed it out with the cold and wind got spectacular views! 
Scattered clouds, hiding the Moon once in a while, were no obstacle 
against a thoroly marvelous view. The February 1st Seminar will give 
time for presenting eclipse reports. 
    The Globe at Night session for 2018 Dec 29-2019 Jan 7 was mostly 
clouded out. Altho on some nights it cleared up late at night or in 
owl hours, every one I heard from observed in early night, under 
cloud. The next session is 2019 Jan 27-Feb 5.
    Some observers, I too, had a hunch that the clear nights in late 
December 2018 were some how 'filtered' to make stars dimmer than 
normal. One possible cause was ash and dust from the volcano event in 
Indonesia on Dec 24. A run of cloudy nights ended December, continuing 
thru January 7. The next several nights were dark and clear with stars 
were of normal brilliance. The day sky was clean deep blue. The 
apparent dimming of stars before New Year's may have been a temporary 
local effect. 
    Over the days centered on the lunar eclipse there was a passing 
between Jupiter and Venus in the dawn sky. Clouds broke up continuous 
watching, yet the change of orientation and separation of the two 
planets was a wonderful show. 
    Scattered reports of travel hazards for lunar  eclipse viewers on 
20 January 2019. Sudden plunge in temps and rise of strong wind iced 
roads and froze some spirits Observing sessions in open field away 
from shelter sufferd badly with decimated attendance. Sessions with 
shelter fared better, giving visitors beautiful views in spite of 
fast-moving scattered clouds. 
    Newcomers to astronomy were amazed how fast planets can move 
Observing from clear sections of the country they saw Jupiter and 
Venus scoot around each other in dawn sky in the mid 20s of January 
2019. when an appulse comes along, please watch it for a few days 
before the event thru a few days after to acquire the sense of 
planetary motion. 
    Jean and Nora Muchanic on 11 January 2019 found in Silver Bh NJ an 
apparent meteorite. It was heavy and partly buried in the beach sand. 
Astro Soc of Toms Rv Area referred the women to Franklin Institute, 
Philadelphia for study. Institute found the rock was a chunk of 
ordinary coal. 
    A monster fireball flew past US East Coast on 9 January 2019 
~06:30 EST. Path was ~100km off-shore parallel to coast starting off 
of Washington DC , ending off Newport News VA. It was seen from LI to 
NC, suggesting the meteor was in very high atmosphere. It likely 
burned up completely with no 
 meteorites falling to the ground. 
    A meteor hit the Moon ron 2019 January 21 ~23:41 EST, a couple 
minutes before 2nd contact. This is the first lunar meteor ever 
observed during a lunar eclipse. It was caught on videos, some aired 
publicly as live eclipse coverage. Flash was beyond recognition by 
eyeball viewers. It showed as a tiny dot on one or two video frames, 
sometimes first spotted upon replay. Time and lunar  lat-lon are 
uncertain due to low resolution full-disc images, obscured lunar 
features in the umbra,  and loose synch of frame timing. Lunar meteors 
are captured about weekly by dedicated searches during small Moon 
periods.