 |
The Details |
|
Object |
PK 205+14.1 The Medusa Nebula in Gemini |
Optics |
12.5" RCOS Ritchey-Chretien at f/6.9 |
Platform |
Astro-Physics 1200 GTO |
Camera |
SBIG ST-10XME |
Filters |
Tru-Balance LRGB filter set |
Date |
09 March 2005 |
Location |
Red Cloud Road, Eastern Riverside County CA |
Exposure |
L 10 x 300 sec 1x1 bin; RGB 4 x 300 sec 2x2 bin |
Software |
Maxim DL/CCD, Registar, Photoshop, Neat Image 4.4 Pro+ |
Orientation |
Field of View: 22’23" x 15’32" centered on RA 07h29m00.4s DEC 13°14’54” (2000.0). North angle 90.2 °; east 90° CCW from north |
| Notes | The Medusa Nebula, PK 205+14.1, is also known as Abell 21. This very large, low surface brightness planetary nebula is a challenge object for visual astronomers, spanning nearly 11.5 arc-minutes of sky. The Medusa's central star is the bluish colored star lying just left of the nebula's center. This image was the result of a collaborative effort between Dave Jurasevich and David Held, sharing data acquisition and processing tasks. |
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