M109 - Barred Spiral Galaxy, Ursa Major
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| M109 is one of the "Theta"-like barred spirals, which appears as a "hazy spot" situated just 40' SE of the mag 2.44 star Gamma Ursae Majoris (Phad, or Phecda). M109 is about 7-by-4 arc minutes in angular extent, and of apparent visual magnitude 9.5 or 9.6. Visually, only its bright central region together with the bar can be seen, and appear pear-shaped in smaller telescopes, "with a strong suspicion of a granular texture" (Mallas). | ||
| Location | J65 Celbridge Observatory, Ireland | |
| Date/Time (UTC) | 24-27 April 2006 | |
| Optics | 200mm SCT, F6.3 reducer | |
| Filters | None | |
| Imager | Meade DSI-C | |
| Mount | Astro-physics 1200GTO | |
| Exposure details | 132 minutes (52 images * 152 seconds) | |
| Software | MaximDL, Photoshop 7 | |
