Re: [APML] Orion panorama

[Chris Schur <comets133@yahoo.com>]

Excellent Wei-Hao, you can see the spokes from the
sword to Barnards loop, and the holes in Lambda
orionis bubble.  That is my test for a really deep
image.

Chris
--- Wei-Hao Wang <whwang@gmail.com> wrote:

> 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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