Q730450

Also 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

Wikidata facts

Distance from Earth: 2429
Image: NGC457.jpg

Show 9 more facts

Commons category: NGC 457
catalog code: [KPS2012] MWSC 0114
time of discovery or invention: 1787-10-18
apparent magnitude: 6.4
right ascension: 19.8958
declination: 58.2867
radial velocity: -27.1
right ascension component of proper motion: -2.69
declination component of proper motion: -1.89

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Article

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