NGC 457
Coordinates
- X -6040
- Y -509
- Z -4771
→ Sol: ∼7,714
Neighbourhood :
- NGC 457 Sector AN-V b18-0
- NGC 457 Sector AW-K c9-0
- NGC 457 Sector BP-A b29-0
- NGC 457 Sector CG-P b34-0
- NGC 457 Sector CJ-K b24-0
Wiki
NGC 457 (also known as the Owl Cluster, the ET Cluster, or Caldwell 13) is an open star cluster in the constellation Cassiopeia. It was discovered by William Herschel in 1787, and lies over 7,900 light years away from the Sun. It has an estimated age of 21 million years. The cluster is sometimes referred by amateur astronomers as the Owl Cluster, Kachina Doll Cluster, the ET Cluster (due to its resemblance to the movie character) or the "Skiing Cluster". Two bright stars, magnitude 5 Phi-1 Cassiopeiae and magnitude 7 Phi-2 Cassiopeiae can be imagined as eyes. The cluster features a rich field of about 150 stars of magnitudes 12-15.
This article uses material from the Wikipedia article "NGC 457", which is released under the Creative Commons Attribution-Share-Alike License 3.0.