Copyright © 2007 Larry Phillips

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                           Horsehead Nebula in the constellation Orion.

Dark nebula. Actually there are several objects in this image. The dark nebula that forms the Horsehead itself is known as Barnard 33 (B 33). The red background is the emission nebula IC 434 and bluish green object at lower left is the reflection nebula NGC 2023.

Distance: 1500 light years
Camera: SBIG ST-2000XM
Telescope: Astrophysics Starfire 130 EDT F8
Mount: Losmandy G11 with Gemini Control with Advanced Telescope Systems portable pier
Images: 12 luminance @ 5 minutes each, 12 red @ 5 minutes each, 12 Green @ 5 minutes each, 12 Blue @ 5 minutes each for a total
                exposure time of 240 minutes.
Date: November 2007
Software: Camera and guider control - CCDSoft, Calibration and stacking, Creation of color image - CCDStack, further processing in Photoshop.