Object: Open cluster DO 11                      Constell: CYG

RA: 20h 26.4m           Decl: +41° 27'          Epoch: 2000
Mag:                    Size: 7'                Type: IV 3 p n

Observer: Jere Kahanpää
Obs. place: Helsinki, Finland
Date/Time:  14./15.9.1996, 00.10

Telescope: C 200/2000
Magn: 160x              Filter:
Field: 19'              NE Lim.mag: 5.0m
Background sky: 4-5     Seeing: 3-4
Weather: +7 °C, no Moon.           

Brightness: 3           Alt: 65°
Description: Suspected with 50x but quite easy with 160x. About
15 stars within 7'. A slight concentration of fainter stars
separates the area from the surroudings. While the brightest one
is mag. 7 the clustering is visible only when stars fainter than
11m are visible. Drawing the object certainly helped a lot - ar
first I didn't see any cluster but decided to draw the field
anyway - and there is was!