(somewhat OT:) Accidental "re-discovery" of Uranus while observing 97-064A :-p

From: Marco Langbroek (marco.langbroek@wanadoo.nl)
Date: Sun Jan 18 2009 - 20:02:19 UTC

  • Next message: T V I: "More on DSP-23"

    Hi all,
    
    A funny anecdote from this evening's Lacrosse 3 (97-064A) observations...
    
    On both two images I took of Lacrosse 3 passing just above the rooftops, I noted 
      a relatively bright star close to the trail end during astrometric measurement 
    of the images.
    
    A star that let itself not identify.... hmm, that's weird...
    
    So I measured its position with AstroRecord (as I was measuring the Lacrosse 3 
    trail anyway) and got (18 Jan 2009, 17:49:12.3 UTC):
    
    RA 350.855, dec -4.751
    = 23h 23m 25.2s, -4 45' 03.6"
    
    Check in Astplot: no bright star nor a bright asteroid on that position. 
    Downloaded a NEAT image of that area, and: no bright star on that position...
    
    So Oi, could it be a nova?!?!
    
    Uhm, wait: how about Uranus or Neptune?
    
    Started up MICA and calculated the position of the outer planets, and yes:
    
    Uranus
    Astrometric Positions     Mean Equator and Equinox of J2000.0
    
        Date        Time      Right Ascension     Declination
                  h  m   s       h  m   s             '   "
    2009 Jan 18 17:49:12.3     23 23 24.115     -  4 45 03.16
    
    Oh well....just 228 years too late... :-p
    
    Reduced size crop of one of the images with objects annotated here:
    
    http://i19.photobucket.com/albums/b176/marcoaliaslama/satellites/uranus18jan09.jpg
    
    - Marco
    
    -----
    Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
    e-mail: sattrackcam@wanadoo.nl
    
    Cospar 4353 (Leiden):   52.15412 N, 4.49081 E (WGS84), +0 m ASL
    Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL
    SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html
    Station (b)log: http://sattrackcam.blogspot.com
    -----
    
    -------------------------------------------------------------------------
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:  
    http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Sun Jan 18 2009 - 20:03:13 UTC