NGC 2004

NGC 2004
Hubble Space Telescope image of NGC 2004
Observation data (J2000 epoch)
Right ascension05h 30m 41.340s[1]
Declination−67° 17′ 21.83″[1]
Distance163.1 ± 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 age20 Ma[5]
Other designationsNGC 2004, ESO 86-SC4[3]
Associations
ConstellationDorado
See also: Open cluster, List of open clusters

NGC 2004 (also known as ESO 86-SC4) is an open cluster of stars in the southern constellation of Dorado. It was discovered by Scottish astronomer James 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 a core radius of 2.85 ± 0.46 pc (9.3 ± 1.5 ly).[7] NGC 2004 is a member of the Large Magellanic Cloud,[4] which is a satellite galaxy of the Milky Way.

  1. ^ a b Cite error: The named reference Werchan_Zaritsky_2011 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Beasor_et_al_2019 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Bica_et_al_2008 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Niederhofer_et_al_2015 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Seligman2000 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Nikolov_Markov_2019 was invoked but never defined (see the help page).