[vsnet-chat 4750] Re: WZ Sge companion

[Brian Skiff <bas@lowell.edu>]

     Following on Arne Henden's note about the companion to WZ Sge, I used his
positions to look in 2MASS to see what appears.  Both stars are present at 
essentially the same locations:

           RA   (2000)   Dec      source
WZ Sge  20 07 36.49  +17 42 14.8  2MASS
        20 07 36.53  +17 42 15.2  Henden

comp    20 07 35.75  +17 42 16.8  2MASS, J-K=0.9
        20 07 35.77  +17 42 17.1  Henden

The 1-sigma rms error on 2MASS positions is about 0".2.  My experience has
been that 2MASS resolves pairs this close without skewed positions, but the
differences here are noticeable, if only ~0".5.

\Brian

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