Re: orion tricolor

[Tom Droege <droege@FNAL.GOV>]

Gosh! My neck is so stiff with age and arthritis that I never do that.

OK, as I figure it out, the overflow tails point East.  I am not very
familiar with how astronomers label things, but the tails trail after
the image, so they point later in time. Which I would call East.  Since
only two of the Orion stars are visible, and they are on one side of 
the strip, this must be the South edge.  So as Michael has posted it,
North is to the top, and East is to the right.  But what do I know.

Tom Droege  

At 11:44 AM 4/9/98 -0700, you wrote:
>  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
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