Object: Open cluster BERK 51                    Constell: CYG

RA: 20h 12.0m           Decl: +34° 21'          Epoch: 2000
Mag:                    Size: 4'                Type: I 1 p n

Observer: Jere Kahanpää
Obs. place: Hartola, Finland
Date/Time: 31./1. 8./9. 1997, 23.40

Telescope: N 205/1000
Magn: 266x              Filter: -
Field: 11'              NE Lim.mag: 6.2m
Background sky: 2-3     Seeing: 3
Weather: +14 °C, no Moon.

Brightness: 5           Alt: 60°
Description: Very faint. Averted vision reveals 2-5 stars with
some still fainter ones blinking in the background and a eF
glow, the latter being round or slightly elongated.