* Astronomy

NGC 2105 (also ESO 86-SC29) is a magnitude +12.2 open cluster located in the constellation Dorado.
The estimated age of the cluster is about 15 million years.

The cluster was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) reflecting telescope at Feldhausen, Claremont, Cape Town, on the 2nd January 1837.

As its format is approximately round, it is sometimes mistaken as a globular cluster.
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Right Ascension 05 44 19.2 Declination -66° 55' 04"