SaratogaSkies Jim Solomon's Astropics


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M42 (The Great Nebula in Orion)   [obsolete]

Image Details:

Camera: Nikon D100
Mount: Celestron AS-GT
Scope: Celestron C8-N (8" f/5 Newtonian)
Configuration: Prime Focus
Additional Optics: n/a (Prime)
Filter: None
Effective Focal Length: 1000mm
Effective Focal Ratio: f/5
Exposure: 1 x 60sec @ ISO 1600 (nebula), 1 x 10sec @ ISO 1600 (trapezium)
Total Exposure: 0hrs, 1min
Date: 3/22/2004, 8:45 PST
Location: Saratoga, CA, USA
Acquisition: Manual
Focus: Manual
Dithering: None
Guiding: None


  • Photoshop: Dark subtracktion, registration, compositing, levels, color balance, image scale (1/4 x), JPG conversion

Image Description:

This is my first ever DSLR image! Thanks much to Jon L. for letting me borrow his Nikon D100.

Some interesting notes about this image. The vertical "trail" at the bottom, center of the image is a diffraction spike from the bright, mag 2.5, star, Iota Orionis, which is just south of the field of view of this photo. The faint, horizontal line in the lower-right portion of the image is a meteor trail or a photographic defect. Not sure which. The distinct nebula above the main one is M43.