Iiro's DeepSky Sketches

Name: NGC 2331	Other name: OCL 475
RA: 7h 7m	DEC: +27° 16'
Constellation: GEM
Type: Open cluster
Magnitude: 8.5
Size: 18.0'
Number of stars: 30
Brightest star: 9
Classification: IV 1 p
Description: Cl,L,vlC,S Cl inv
Notes: H VIII 40
Observer: Iiro Sairanen
Location: Lakasenpelto, Imatra, Finland
Date: 4/5.2.2003 21:47
Instrument: Newton 406/1830 mm
Magnification: 73x	Filter: -
Field: 41'	Seeing: 4
Background sky: 4	NE lim mag: 5.5
Visuality: I	Height: 52°
Weather: -15°C
Description: Not compressed, about 30 stars. Poor.
Updated: 11.2.2003 17:15