Object: Globular cluster G1 in Messier 31       Constell: AND

RA: 00h 32.80m          Decl: +39° 34.6'        Epoch: 2000
Mag: 13.7m              Size:                   Type: 

Observer: Jere Kahanpää
Obs. place: Hartola, Finland
Date/Time: 3./4.1.1997, 18.45

Telescope: N 205/1000
Magn: 133x              Filter:
Field: 22'              NE Lim.mag: 6.0m
Background sky: 2       Seeing: 3 
Weather: -12 °C, no Moon.          

Brightness: 4           Alt: 66°
Description: Suspected at 40x and easy at 133x: Non-stellar but
strongly concentrated. Diam. less than 10''. Round. A mag. 14
stellar core in a small glow. Slightly fainter than the two
field stars N and NE. 

G1 is the brightest (known) globular cluster in the local group
with a absolute magnitude of -10.9