RE: [APML] 10 frame Rosette Mosaic

["R. Scott Ireland" <ireland@gate.net>]

Hi Bobby,

That's spectacular.  I like your HII color rendition also.

Scott

website:  http://www.rsiphotos.com/
email:  ireland@gate.net

> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> Behalf Of Bobby Middleton
> Sent: Sunday, February 10, 2002 2:15 PM
> To: astro-photo@seds.org
> Subject: [APML] 10 frame Rosette Mosaic
>
>
> Hello all. I've finally posted my "winter project" for this season. It's a
> 10 frame (yep; ten) mosaic of the Rosette nebula. I was able to
> oevrcome the
> frame warping difficulties that kept me from going past 5 or 6
> frames on my
> previous projects by registering the central 3-4 frames with
> Registar on top
> of a wide-field image; then building the additional single frames
> on top of
> that. I still had some warping but I believe one can take the image at
> whatever stage and re-register it on a widefield image to get
> things back to
> linear alignment. It's here:
> http://www.koyote.com/users/bobm/rosette2.htm
> All 10 frames are composites of two 60 min exposures on hypered
> Kodak LE 400
> film.
> I posted a high-res crop of this to the AP users group about 2
> weeks ago for
> comparison with CCD images made with two different wide-field instruments.
> The high-res central crop from my 12.5" f/7 newt is on the page
> below along
> with an identical crop from Ray Gralak's AP 105 st-8 Ha image and Mark
> Jenkin's Ha image from a 9.25" Mak-newt with a FLI CCD camera. Those
> comparisons are at the link below if anyone is interested in resolution
> comparisons of film and CCD cameras. The fewer stars from the CCD
> images are
> a result of the Ha filter.
> http://www.bigcigarastronomy.com/Rosette-Comparison2.jpg
> Bobby Middleton
>
>
>
>
>
>
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