| NGC 2004 | |
|---|---|
 Hubble Space Telescope image of NGC 2004 | |
| Observation data (J2000epoch) | |
| Right ascension | 05h 30m 41.340s[1] |
| Declination | −67° 17′ 21.83″[1] |
| Distance | 163.1 ± 0.3 ly (50 ± 0.1 pc)[2] |
| Apparent magnitude (V) | 9.6[3] |
| Apparent dimensions (V) | 3.0' × 2.8'[4] |
| Physical characteristics | |
| Mass | ~2.3×104[5] M☉ |
| Estimated age | 20 Ma[5] |
| Other designations | NGC 2004, ESO 86-SC4[3] |
| Associations | |
| Constellation | Dorado |
| See also:Open cluster,List of open clusters | |
NGC 2004 (also known asESO 86-SC4) is anopen cluster of stars in the southernconstellation ofDorado. It was discovered by Scottish astronomerJames Dunlop on September 24, 1826.[6] This is a young, massive cluster with an age of about 20 million years and 23,000 times the mass of the Sun.[5] It has acore radius of 2.85 ± 0.46 pc (9.3 ± 1.5 ly).[7] NGC 2004 is a member of theLarge Magellanic Cloud,[4] which is asatellite galaxy of theMilky Way.
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