RE: [APML] Orion panorama

["Scott Hammonds" <shammonds@creatorsview.com>]

That is OUTSTANDING! 


Scott Hammonds
www.creatorsview.com

-----Original Message-----
From: Wei-Hao Wang [mailto:whwang@gmail.com] 
Sent: Wednesday, January 12, 2005 7:52 AM
To: APML
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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