|Observation data (J2000.0 epoch)|
|Right ascension||01h 05m 11.00s|
|Declination||+62° 01′ 18.0″|
|Distance||1700 ± 300|
|Apparent dimensions (V)||2.5′|
NGC 358 is a very small open cluster of four stars in the constellation of Cassiopeia. It was originally thought to be an unrelated Asterism, but two of the members were found to have a similar distance of roughly 1700 light years, although the other two do not have well-constrained distances, so its exact nature is uncertain.
|Component||Right Ascension||Declination||Distance (ly)||Brightness||Reference|
|TYC 4021-519-1||01h 05m 03.5s||+62° 01′ 41.4″||1700 ± 330||11.2|
|01h 05m 15.4s||+62° 01′ 37.1″||1600 ± 240||11.8||VizieR|
|TYC 4021-649-1||01h 05m 05.7s||+62° 00′ 54.5″||3800 ± 5400||11.6||VizieR|
|USNO-A2.0 1500-01120974||01h 05m 19s||+62° 00′ 57″||?||12.5||VizieR|
The asterism was discovered on February 4, 1865 by the German-Danish astronomer Heinrich Louis d'Arrest.
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