Horsehead Nebula - Barnard 33
The Horsehead Nebula (Barnard 33) is a dark nebula in the constellation Orion. The nebula is located south of Zeta Orionis (Alnitak), the easternmost star in the Belt of Orion, and is one part of the Orion Molecular Cloud Complex. Its distance from Earth is approximately 1500 light years. The emission nebula IC 434 behind the Horsehead is an HII region of glowing hydrogen gas that is ionized by the nearby star Sigma Orionis. The nebula's characteristic shape was first captured photographically by Williamina Fleming at Harvard College Observatory.
For a lower power view of this object using the Takahashi E-180 Astrograph see Horsehead Nebula(ASA N12).
Technical Details
- Object: Horsehead Nebula
- Object Type: Dark Nebula
- Other Names: Barnard 33 (in emission nebula IC 434)
- Date/Time: 2014 Jan 22 & Jan 28
- Location: Bifrost Astronomical Observatory, Portal, AZ
- Mount: Astro-Physics 1600GTO
- Telescope: ASA N12 Corrected Newtonian Astrograph
- Camera: SBIG STL-11000M
- Field of View: 1.91° x 1.28° at 1.72 arc-sec/pixel (web version: 7.4 arc-sec/pixel)
- Exposure: L (10x600s), R:G:B (8x300s)
- File Name: IC434-B01w.jpg
- Processing: CCDStack 2 and Photoshop CS6
- Original Image Size: 2672 x 4008 pixels (10.7 MP); 8.9" x 13.4" @ 300 dpi
- Rights: Copyright 2014 by Fred Espenak. All Rights Reserved. See: Image Licensing.
