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The Triangulum Galaxy, M33 Located in Triangulum, M33 is large and bright (visual magnitude +5.8) and a fine example of a loosely wound spiral galaxy. It is a member of our Local Group of galaxies and about 3Mly away. The unusually blue appearance is attributed to the substantial number of bright blue stars present and, even at this distance, blue and red supergiants are resolved together with numerous star clusters, red emission regions and dark dust lanes.
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| Camera: | SBIG STL11000M, Astrodon filters | Scope: | Takahashi TOA-130, f=1000mm, f7.7+flattner (fov ~1.2° x 1.0°) |
| Mount: | Takahashi EM-200 Temma2 | Guiding: | external, E-finder |
| Filters/Exposures: | L:R:G:B = 60:30:30:45min ≡ 2h45m | Location: | Little Desert Lodge, Victoria, Australia |
| Dates: | October 2010, 2012 | Processing: | CCDStack2, RegiStar and Photoshop CS5 (reprocessed Oct 2012) |