File:BGC_457Cluster.png · Wikimedia Commons · See Wikimedia Commons
Q730450
Sign in to saveAlso known as New General Catalogue 457, Owl Cluster, ET Cluster, C 13
open star cluster in the constellation Cassiopeia
Key facts
- Right ascension
- 01 19 32.6
- Declination
- +58 ° 17 ′ 27 ″
- Distance
- 7.922 kly (2.429 kpc )
- Apparent dimensions v
- 13.0′
- Other designations
- Owl Cluster, E.T. Cluster, Caldwell 13, Cr 12, Mel 7, OCL 321, Lund 43, H VII-42, h 97, GC 256
- Constellation
- Cassiopeia
via Wikipedia infobox
~2 min read
Encyclopedic overview
NGC 457 is an open star cluster in the northern constellation of Cassiopeia. Alternatively, it is designated Caldwell 13, and known as the Dragonfly Cluster, E.T. Cluster, Owl Cluster, Kachina Doll Cluster or Phi Cassiopeiae Cluster. It was discovered by German-British astronomer William Herschel on August 18, 1780, with a 6.2 inch reflector telescope, and catalogued as VII 42. This is an easy target for amateur astronomers, and can be seen even with small telescopes in light-polluted skies.
Characteristics
Excerpted from Wikipedia’s “Q730450” article, available under the CC BY-SA 4.0 licence.