This image consists of 24*5 minute frames of O3 data in the Blue/Green channels, combined with 21*5 minutes of H-alpha in the Red channel for a total of 3.75 hours.
The Veil Nebula complex is in Cygnus, amid the rich background of the winter milky way. The Veil is a supernova remnant from 5-10,000 years ago, and is around 1500 light years from earth. Note the narrowband image, and improved processing, have resulted in much less noticeable stars compared with my previous effort -- a good thing.
Equipment: SBIG ST-8300 CCD camera with the FW8-8300 filter wheel, Astrodon narrowband 36mm filters, the Takahashi FSQ-85 telescope with reducer, AP 900GTO mount. I used MaximDL to acquire and process flat and dark frames, Registar to align, Photoshop CS5 with a little HDR toning to process from there. Other narrowband pictures with this combination, and more info, are at this link. Other astronomy pictures from the Fall 2011 trip are here.
The Veil Nebula complex is in Cygnus, amid the rich background of the winter milky way. The Veil is a supernova remnant from 5-10,000 years ago, and is around 1500 light years from earth. This picture above is a crop of the larger version, below, and is reduce to about 80% of the camera's raw output. Registar counts over 15,000 stars in the original frame of this image.
This is my first-ever attempt at the veil area. It is quite dim and therefore especially difficult to image. I've only seen it once visually, though a NHAC member's big scope with a special filter.
Image details. 30 x 4 = 120 minutes total exposures from the morning of 9/21/2006 at the HAS site near Columbus. Canon EOS 20Da (unmodified), Takahashi TOA 130 (a 5" APO refractor), Losmandy G-11 mount. My current image processing workflow is here.
Index for September 19, 20, 21, 2006
Astronomy Pictures: Dick Locke's Astrophoto Gateway page....
Copyright © Dick Locke. All Rights Reserved.
Contact and Image Use Information