Iiro's DeepSky Sketches

Name: NGC 1931	Other name: OCL 441
RA: 5h 31.4m	DEC: +34° 15'
Constellation: AUR
Type: Cluster + nebulosity
Magnitude: 10.1
Size: 3' x 3'
Brightest star: 11.5
Classification: I 3 p n:b
Description: vB,L,R,B***in M
Notes: H I 261,Contains triple ADS 4112
Observer: Iiro Sairanen
Location: Haakanala, Rautjärvi, Finland
Date: 30/31.1.2011 22:10
Instrument: Newton 457/2280 mm
Magnification: 457x	Filter: -
Field: 9'	Seeing: 3
Background sky: 2	NE lim mag: 6.7
Visuality: 2	Height: 61°
Weather: -17°C
Description: A mixture of nebulae and poor open star cluster.
Updated: 23.3.2011 20:55