orion tricolor

[aah@nofs.navy.mil]

  Last night it was actually clear here, and I had a chance to look at
Orion.  This immediately made me realize that I did not do all the
rotate/flips correctly on the .ps file.  I think the two bright stars are the
northern two belt stars, so it looks to me like the image needs to be
flipped left/right.  Someone else ought to confirm this, and then remake
the gif files so that the orientation is correct.
  Note also that the .fts files are registered properly in pixel space,
but their orientation with respect to the cardinal directions may be
equally confused.  The fits files are also 'raw' images, flatfielded and
sky subtracted but no fudging of the contrast by the Gaussian histogram
equalization as was done for the postscript file.  I posted these so that
anyone who wanted to play with other techniques to bring out features could
do so with real data.
  Sorry about the confusions.  It goes along with my current state of mind.
Arne
--------------------------------------------------------------------
Arne Henden                               Instruments/software/CCDs
US Naval Observatory Flagstaff Station    Cepheids/photometry/IR
P.O. Box 1149                             ftp: ftp.nofs.navy.mil  
Flagstaff, AZ 86002-1149                  Voice: (520)779-5132
aah@nofs.navy.mil                         FAX:   (520)774-3626