NGC 7790 · open cluster

NGC 7790

NGC 7790 is a young open cluster of stars located some 10,800 light years away from Earth in the northern constellation of Cassiopeia.

RA23h 58m 24sDec+61° 12' 29"

Image: Bautsch. CC0, via Wikimedia Commons.

Identity & coordinates

Identification

Primary designation: NGC 7790
All designations: NGC 7790
Object type: Open Cluster
Constellation: Cassiopeia
Best viewing: Autumn · Winter

Coordinates & physical

Right ascension (J2000): 23h 58m 24s
Declination (J2000): +61° 12' 29"
Apparent magnitude (V): —
Distance: —

III

Visibility tonight

The science

NGC 7790 is a young open cluster of stars located some 10,800 light years away from Earth in the northern constellation of Cassiopeia. At this distance, the light from the cluster has undergone extinction from interstellar gas and dust equal to E(B – V ) = 0.51 magnitude in the UBV photometric system. NGC 7790 has a Trumpler class rating of II2m and the estimated age is 60–80 million years. It contains three cepheid variables: CEa Cas, CEb Cas, and CF Cas.

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