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By |
Catalog |
Obj Type |
Location |
Date Taken: |
Smoot |
Abell 21 |
Nebula |
Mayhill, NM |
02-27-2009 |
Description |
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The Medusa nebula, also known as Abell 21 and as Pk204.14+1, is an old planetary nebula that is located 1,500 light-years away in the constellation Gemini. Ultraviolet radiation from a hot dying star powers the nebular glow. The Medusa's transforming hot central star is the small blue star within the upper half of the overall bright crescent shape. Fainter filaments clearly extend above and to the left of the bright crescent region. The Medusa Nebula is estimated to be over 4 light-years across. |
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Technical Details |
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Exposure Time: |
5 hrs Ha and 1.75 hrs each RGB | |||
Camera: |
SBIG STL-11000M | |||
Telescope: |
RCOS 16 inch f/8.7 Ritchey-Chretien | |||
Mount: |
Software Bisque Paramount ME | |||
© 2024 Smoot Used with permission, No reproduction of these images are permitted without written approval from Smoot. |