Re: [APML] Orion panorama

["Joe & Leslie Schaefer" <schaefer@htva.net>]

Great job Wei-Hao!  I epically liked the Horse Head nebula and the Witch
Head nebula in the lower right corner is so visible.
Thanks for sharing,
 Joe Schaefer

> ----- Original Message -----
> From: "Wei-Hao Wang" <whwang@gmail.com>
> To: "APML" <astro-photo@seds.org>
> Sent: Wednesday, January 12, 2005 7:52 AM
> Subject: [APML] Orion panorama
>
>
> > ALOHA,
> >
> > Please allow me to call this a panorama, although it doesn't cover the
> > entire Orion.
> > I went to Mauna Kea last month and it may be my last time taking astro
pictures
> > in recent 2 or 3 years.  This image is the primary effort of mine
> > since Dec 2003.
> > Here we go:
> > http://www.ifa.hawaii.edu/~wang/misc/orion_01x.jpg
> >
> > What you see is a 0.1x reduction of the original image.  I'm still
> > finalizing the image
> > processing.  Later (next month?) I will post a full webpage for this
> > image, including
> > all byproduct images.  At this moment, any comments are welcome.  Below
are
> > more details about the imaging and processing.
> >
> > Images were taken between Dec 2003 and Dec 2004, in a total of 9 nights.
> > Telescope is Pentax 105SDHF with focal reducer (F5.1).  Camera is Pentax
67.
> > Film is Kodak E100S pushed 1.  Exposure time is 90 minutes.  The final
picture
> > contains 22 of such images.  18 of them form a 3x6 mosiac.  4 of them
are added
> > onto selected regions to increase S/N.
> >
> > As before, the individual images were flattened in my own program,
registered
> > and calibrated in Registar, and combined in Photohop.  There is a
> > short exposure for
> > M42 very slightly blended into this image.  I prefer to keep M42
> > bright and almost
> > saturated.  I tried not to over-process the nebulas although the depth
> > of this image
> > does allow a strong enhancement.  The time I spent on image processing
> > is perhaps
> > 2x the total exposure time.  Later I will tell you more details about
> > the technique
> > of image processing.
> >
> > Comments are welcome.
> >
> > Wei-Hao
> >
> > --
> > ________________________________________________________________
> > Wei-Hao Wang  :)
> >
> > Institute for Astronomy at University of Hawaii
> >
> > Address:
> > 2680 Woodlawn Drive         Personal Website:
> > Honolulu, HI 96822             http://www.ifa.hawaii.edu/~wang
> > ________________________________________________________________
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