Basic object information

Object name: Stock 21
Object type: Open cluster
Size: 5.0'
Magnitude of brightest star: 12.0
Object classification: IV 2p :b

Catalog information

RA (J2000.0): 00h 30m 30.0s
Dec (J2000.0): +57 58' 00"

Constellation: Cassiopeia


Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 21/22.11.2005 19:45

Telescope: Newton 457/2280 mm

Magn: 228x

Filter:

Field: 13'

NE Lim.mag: 5.6

Background sky: 5

Seeing: 2

Height: 85
Visuality: I
Weather: -8C, 70% Moon in NE

A poor open cluster which consists of 20 stars between 11 and 14 magnitudes.