Object: Open cluster NGC 7209                   Constell: LAC

RA: 22h 05.2m           Decl: +46° 30'          Epoch: 2000
Mag: 6.7m               Size: 25'               Type: III 1 p

Observer: Jere Kahanpää
Obs. place: Hartola, Finland
Date/Time: 28./29.7.1992, 01.35 (!)

Telescope: N 205/1000
Magn: 63x               Filter:
Field: 60'              NE Lim.mag: 4.5m
Background sky: 5-6     Seeing: 2-3

Brightness: 3           Alt:    
Description: A beautiful but not too bright open cluster. Stars
of mag. 11-12 in a narrow range of brightness. The cluster s
surrounded by a ring of 5 mag. 6-8 stars. The cluster itself is
clearly ring-shaped with a totally starless center. The ring is
broken on the W side.