NGC 2355
Open cluster in the constellation Gemini
From Wikipedia, the free encyclopedia
NGC 2355 also known as NGC 2356,[3] is an old open cluster in the constellation Gemini.
.jpg)
| NGC 2355 | |
|---|---|
| |
| Observation data (J2000 epoch) | |
| 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, NGC 2356[3] |
| Associations | |
| Constellation | Gemini |
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]
