Re: Unk 90007 Observation

From: Ed Cannon (ecannon@mail.utexas.edu)
Date: Wed Jun 21 2000 - 16:22:56 PDT

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    Geoff Chester (chester.geoff@usno.navy.mil) wrote:
    
    ] I was able to view Ed's Unk 90007 object last night from my front yard 
    ] in Alexandria, VA (77.0725W, 38.8264N).  I searched for it with my 
    ] home-built 8-inch f/6 Dobsonian, finally acquiring it at 3:04 UTC.  
    ] It was probably already well into its flash cycle....  I watched it 
    ] continuously for the next 20 minutes, sometimes with 7X50 binox, 
    ] sometimes with the telescope.
    
    Yay!  
    
    It should still be visible -- I mean the bright flash episode, viewed 
    with binoculars -- for North American Central Time observers for maybe 
    at least three more nights before it gets too far into twilight.  
    Monday evening (June 20 UTC) I observed it with binoculars from about 
    2:48:59 to 3:04:02.  (Mike McCants had a longer obs. "window" with his 
    telescope of course.)  I would have expected it to be about five 
    minutes earlier here last night than Monday night (say 2:45-3:00 for 
    binoculars -- almost 20-25 minutes earlier than Geoff's observation!).  
    So it certainly seems that for the Washington, DC, area at least it's 
    flashing significantly later than when it flashes here.
    
    The neat sparkles that Geoff reported require a telescope, but the 
    change in the quality or at least relative brightness and duration of 
    the primary and secondary flashes can be seen in binoculars.  
    
    Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA
    
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