Iiro's DeepSky Sketches

Name: NGC 6939Other name: OCL 217
RA: 20h 31.5m DEC: +60° 40'
Constellation: CEP
Type: Open cluster
Magnitude: 7.8
Size: 8.0'
Number of stars: 80
Brightest star: 11.9
Classification: I 1 m
Description: Cl,pL,eRi,pCM,*11..16
Notes: H VI 42,Gal N6946 38' SE
Observer: Iiro Sairanen
Location: Ania, Pirkkala, Finland
Date: 16/17.9.2009 0:20
Instrument: Newton 300/1500 mm
Magnification: 214xFilter: -
Field: 23'Seeing: 2
Background sky: 2NE lim mag: 6.7
Visuality: IHeight: 75°
Weather: +7°C
Description: A moderate open cluster nearby galaxy NGC 6946. Stars are 11 mag and fainter. The brightest stars lie on the south-part.
Updated: 18.11.2009 20:12