Object: Open cluster Do 42                      Constell: CYG

RA: 20h 19.8m           Decl: +38° 08'          Epoch: 2000
Mag:                    Size: 11'               Type: IV 1 p n

Observer: Jere Kahanpää
Obs. place: Jyväskylä, Finland
Date/Time: 8./9.8.1996, 01.35

Telescope: N 205/1000
Magn: 80x               Filter:
Field: 37'              NE Lim.mag: 5.2m
Background sky: 4-5     Seeing: 3 
Weather: +10 °C, 1/3 Moon low E.        

Brightness: 4           Alt:    
Description: About 15 stars mag. 10... E of a 8m star. Est.
diameter 10'. Two subgroups: The first is in the immediate
surroundings of the 8m star and the second about 5' ESE. The
latter consists of faint stars (mag. 11,12...13) but is richer
than the first. Megastar shows the cluster around the fainter
group but the size easily includes both groups and the first is
actually easier to recognise as a concentration of stars.