Basic object information

Object name: NGC 7790
Object type: Open cluster
Magnitude: 8.5
Size: 5.0'
Number of stars: 40
Magnitude of brightest star: 10.9
Object classification: III 2 p
Description: Cl,pRi,pC
Notes: H VII 56;Contains CE Cas

Catalog information

RA (J2000.0): 23h 58m 24.0s
Dec (J2000.0): +61 13' 00"

Constellation: Cassiopeia

Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 25/26.10.2005 20:55

Telescope: Newton 457/2280 mm

Magn: 228x


Field: 13'

NE Lim.mag: 6.0

Background sky: 4

Seeing: 2

Height: 83
Visuality: I
Weather: -4C, thin clouds

The cluster is divided to two different areas. There is a small and dispersed group of brighter stars on the westside when fainter stars lie in tighter group in the eastside.