Sharpless 2-184 Emission
Nebula in Cassopiea
a/k/a "Pac Man Nebula" and NGC281
| Scope: | Takahashi E160 f/3.3 astrograph | ||
| Camera: | SXV-H9 by StarlightXpress | ||
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Image: |
H-a 9 x115 minutes = 2 h 15 m , guided with MX716 on NP-101. Acquired with AA3. Processed with ImagesPlus. Psuedo color added with Noel Carboni's Actions in PS CS | ||
| Filters: | AstroDon 6 nm FHHM H-a | ||
| Conditions: | Transparency 3/10; VLM 3.5, Seeing 3/5 per Clear Sky Map; heavy dew on everything! Roll-off causes more dewing than my dome did because of larger solid angle exposed to the cold sky. | ||
| Mount: | AP1200GTO goto mount; | ||
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Comments: |
This is an "easy" H-a target because it is among the
brightest emission nebulae. I need to redo this with better centering and
better processing to avoid clipping. |
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| Screen shot from SkyMap Pro 10 http://www.skymap.com/ illustrating the Sharpless 2-184 emission nebula in Cassiopeia. The white box indicates Sh2-184. |
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