NGC 1858

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NGC 1858
NGC 1858 HST 9891 58 ACS R814 G B555.png
The open cluster NGC 1858
Observation data (J2000 epoch)
Right ascension 05h 09m 51.9s [1]
Declination −68° 53 28 [1]
Apparent magnitude  (V)9.9 (visible) 9.8 (B-Band) [2]
Physical characteristics
Estimated age8 million [3]
Other designationsESO 56-SC74, Dunlop 120
Associations
Constellation Dorado
See also: Open cluster, List of open clusters

NGC 1858 (also known as ESO 56-SC74) is a bright, large, irregular open cluster and emission nebula. It is found in the Dorado constellation. It is located in the Large Magellanic Cloud. It was first discovered by James Dunlop on August 3, 1826, and was first recorded as Dunlop 120. John Herschel recorded it on November 2, 1834. However, at the time, he did not associate it with Dunlop 120. Astronomers have now realised that Dunlop 120 and NGC 1858 are the same object. [2]

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See also

Related Research Articles

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<span class="mw-page-title-main">NGC 1854</span> Globular cluster in the constellation Dorado

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<span class="mw-page-title-main">NGC 1763</span> Emission nebula in the constellation Dorado

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<span class="mw-page-title-main">NGC 2032</span> Emission nebula in the constellation Dorado

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<span class="mw-page-title-main">NGC 2035</span> Emission nebula in the constellation Dorado

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<span class="mw-page-title-main">NGC 2029</span> Emission nebula in the constellation Dorado

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<span class="mw-page-title-main">NGC 1935</span> Emission nebula in the constellation Dorado

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<span class="mw-page-title-main">NGC 1978</span> Globular cluster in the constellation Dorado

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<span class="mw-page-title-main">NGC 1987</span> Star cluster in the constellation Mensa

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<span class="mw-page-title-main">NGC 1955</span> Open cluster in the constellation Dorado

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<span class="mw-page-title-main">N11 (emission nebula)</span> Emission nebula in the constellation Dorado

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<span class="mw-page-title-main">NGC 2004</span> Open cluster in the constellation Dorado

NGC 2004 is an open cluster of stars in the southern constellation of Dorado. It was discovered by Scottish astronomer James Dunlop on September 24, 1826. This is a young, massive cluster with an age of about 20 million years and 23,000 times the mass of the Sun. It has a core radius of 2.85 ± 0.46 pc (9.3 ± 1.5 ly). NGC 2004 is a member of the Large Magellanic Cloud, which is a satellite galaxy of the Milky Way.

References

  1. 1 2 "NED results for object NGC 1858". NASA/IPAC EXTRAGALACTIC DATABASE. Retrieved 8 October 2017.
  2. 1 2 "NGC 1858 (= an OCL and EN in the LMC)". cseligman. Retrieved 8 October 2017.
  3. Vallenari, A.; Aparicio, A.; Fagotto, F.; Chiosi, C.; Ortolani, S.; Meylan, G. (1994). "Active star formation regions at the edge of the LMC Bar: NGC 1850 and NGC 1858". Astronomy and Astrophysics. 284: 447. Bibcode:1994A&A...284..447V.