Re: [APML] Orion Mosaic (finally done)

["D. Kodama" <kodama@alumni.caltech.edu>]

John,

Very impressive project and nice presentation of how it was done.  I can
appreciate how much work went into it.  Wasn't this shot the RTMC deep sky
photo winner?  It's too bad that the RTMC rules restrict the print sizes
to 16x20!

A couple of questions - (1) What was the "distortion correction" that was
applied to each frame, and what software did you use for that?  (2) What
kind of computer did you use for the processing?  My PC (2GHz/1GB) ran out
of gas on my last mosaic attempt.

Dave Kodama




> Hi everyone,
>
> Sorry I have not been too active on this list lately. Just started work
> at a new company so my time for imaging has suffered somewhat.
>
>  I did manage to complete an Orion mosaic that I imaged the past winter.
> This is a 12 frame mosaic on 120 E200 each frame is a composit of one 60
> min (no filter) and one 90 min. ( Lumicon Deep Sky Filter). Each frame
> coveres 6 x 7 degrees of sky. Adjacent frames were made with about 1
> degree of overlap.
>
> The 10 nights and 30 plus hours of imaging over a period of  2 months
> was the easy part. The image processing was by far the most work and time.
>
> This is a reduced resolution jpg of the final image. The full res tiff
> is 48" x 52" at 300 dpi
> http://aisig.sdaa.org/astroblogDetail.asp?imgID=541&UserID=67
>
> here is how the image was constructed
> http://aisig.sdaa.org/astroblogDetail.asp?imgID=542&UserID=67
>
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