Object: Open cluster NGC 6811                   Constell: CYG

RA: 19h 37.3m (own)     Decl: +46° 23'          Epoch: 2000
Mag: 6.8m               Size: 13'               Type: IV 3 p

Observer: Jere Kahanpää
Obs. place: Jyväskylä, Finland
Date/Time: 16./17.12. 1991, 19.10

Telescope: N205/1000
Magn: 63x               Filter: 
Field: 60'              NE Lim.mag: 4.8m
Background sky: 5       Seeing: 3 
Weather: 3/4 Moon S. Clouds, very bag light pollution. Aargh!    
                     
Brightness: 3           Alt:    
Description: An easy cluster even in this weather. About 20
stars mag. 11...13. Round. Ring-like with only faint stars the
the inner half.