NGC 121
NGC 121 is a globular cluster in the Small Magellanic Cloud, in the constellation of Tucana. It was first discovered by John Herschel on September 20, 1835. The compiler of the New General Catalogue, John Louis Emil Dreyer, described this object as "pretty bright, pretty small, little extended, very gradually brighter middle".[3]
| NGC 121 | |
|---|---|
 Hubble Space Telescope image of globular cluster NGC 121 | |
| Observation data (J2000 epoch) | |
| Constellation | Tucana |
| Right ascension | 00h 26m 48.25s [1] |
| Declination | −71° 32′ 8.4″ [1] |
| Distance | 199.0 Kly (61 Kpc [1]) |
| Apparent magnitude (V) | 11.24 [2] |
| Physical characteristics | |
| Radius | 175 light years [3] (53.7 parsecs) |
| Estimated age | 10 billion years [3] |
References
- "NASA/IPAC Extragalactic Database". Results for NGC 121. Retrieved 2015-09-29.
- "NGC 121". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2015-09-29.
- "New General Catalogue Objects: NGC 100-149". Retrieved 2015-09-29.
External links
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