NGC3718- Galaxy in Ursa Major
| Telescope: | Orion 120ED w/ William Optics reducer (operating at f/6) |
| Camera: | Atik 16-HR w/ Astronomik filters |
| Mount: | Losmandy G11 w/Gemini |
| Guiding: | 300mm lens attached Orion SSAG. |
| Exposures: |
L: 15 @ 5 min.; R: 6 @ 240 sec.; G: 6 @ 230 sec.; B:6 @ 300 sec. (all binned 2x2) |
| Processing: |
Images were focused, acquired, reduced, and combined in MaxImDL. The Luminance and RGB image were aligned with RegiStar and combined in Photoshop CS2. The composite image was slightly cropped and adjusted (Curves, Levels,Shadows/Highlight). Stars were shrunk using minimum filter after selecting around them. Finally, Grain Surgery was applied to reduce noise. |
| Notes: |
Shot
from my backyard observatory in southeastern Minnesota. This galaxy
is considered "peculiar" and is also listed in the Arp
catalog. The spiral galaxy in the field is NGC3729, one of NGC3718's
neighbors. |
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