[vsnet-alert 6637] Re: Likely new variable star (of unknown nature)

[Brian Skiff <bas@lowell.edu>]

     Re Ed Totman's possible variable:  I have called up 3'x3' cut-outs
of the eight available sky survey scans from the USNO-Flagstaff site
(http://vsnet.nofs.navy.mil/data/FchPix/cfra.html).  The jpeg images are
available here:

  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_se0146.000.jpg  
  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_so0146.000.jpg  
  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_sj0145.000.jpg  
  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_sf0145.000.jpg  
  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_sn0145.000.jpg  
  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_sj0188.000.jpg  
  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_sf0188.000.jpg  
  jpg file: http://vsnet.nofs.navy.mil/tmp/fchaaihEa_sn0188.000.jpg  

...which should be available for 24 hours or so.  Note that the two second-epoch
J (blue-light) photos were taken a couple of days apart.  Comparing these
the POSS-I O plate suggests only slight variability (0.5 mag. or less),
and the two far-red images (N plates) suggest likewise.  The three red plates
(se and sf) don't show anything obvious.  Given the somewhat variable image
quality of Totman's frames, it's likely that there's not too much going 
on here.

\Brian

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp