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M 35 and NGC 2158
Messier 35 (also catalogued as NGC 2168) is an open cluster in the constellation Gemini. Scattered over an area almost the size of the full moon, it is located at about 2,800 light-years from Earth. About 15' southwest of M 35 is located the compact open cluster NGC 2158.The stars of the over 1 billion years old cluster are very highly concentrated, similar to a globular cluster. Therefore previously this star cluster was considered globular cluster, but because of its age, its identification as an open star cluster is indubitable. This image was taken remotely from the remote controlled IRIDA Observatory . |
Technical Details: |
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| Optics: | ASA N12 Astrograph at F/3.6 |
| Mount: | ASA DDM 85 |
| Camera: | SBIG STL-11000M |
| Filters: | Astronomik LRGB filter set |
| Dates/Times: | 3 January 2013 |
| Location: | Rozhen, IRIDA Remote Observatory |
| Exposure Details: | R = 9 min., G = 9 min., B = 9 min. |
| Subexposures: | 3 minutes |
| Acquisition: | CCD Soft |
| Processing: | PixInsight, Photoshop CS |