NGC 2355
NGC 2355 is an old open cluster in the constellation Gemini.
| NGC 2355 | |
|---|---|
.jpg) | |
| Observation data (J2000 epoch) | |
| Constellation | Gemini |
| Right ascension | 07h 17.0m[1] |
| Declination | +13° 47′[1] |
| Distance | 5.38 kly[2] (1.65 kpc) |
| Apparent magnitude (V) | 9.7[1] |
| Apparent dimensions (V) | 5′[2] |
| Physical characteristics | |
| Other designations | Cr 133 |
It is approximately a billion years old and is located about 5,400 light years (ly) from the Solar System and 1,100 ly above the plane of the Milky Way galaxy. At that distance, the angular size of the cluster halo corresponds to a radius of about 23 ly. The core radius is 2.3 ly, and the central component radius is 11 ly.[2]
References
- "NGC 2355". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-03-07.
- Soubiran, C.; Odenkirchen, M.; Le Campion, J.-F. (May 2000). "Fundamental properties of the open cluster NGC 2355". Astronomy and Astrophysics. 357: 484–494. arXiv:astro-ph/0003148. Bibcode:2000A&A...357..484S.
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