NGC 884 · open cluster

χ Persei (Double Cluster)

NGC 884 is an open cluster located 7640 light years away in the constellation of Perseus.

RA02h 22m 32sDec+57° 08' 38"

Image: ESO/S. Brunier. CC BY 4.0, via Wikimedia Commons.

Identity & coordinates

Identification

Primary designation: NGC 884
All designations: NGC 884 · χ Persei (Double Cluster)
Object type: Open Cluster
Constellation: Perseus
Best viewing: Autumn · Winter

Coordinates & physical

Right ascension (J2000): 02h 22m 32s
Declination (J2000): +57° 08' 38"
Apparent magnitude (V): —
Distance: —

III

Visibility tonight

The science

NGC 884 is an open cluster located 7640 light years away in the constellation of Perseus. It is the east component of the Double Cluster with NGC 869. NGC 869 and 884 are often designated h and χ Persei, respectively. The cluster is about 14 million years old. Located in the Perseus OB1 association, both clusters are located physically close to one another, only a few hundred light years apart. The clusters were first recorded by Hipparchus, thus have been known since antiquity.

Summary adapted from Wikipedia · CC-BY-SA-4.0