Object: Open cluster NGC 1664                   Constell: AUR

RA: 04h 51.1m           Decl: +43° 42'          Epoch: 2000
Mag: 7.6m               Size: 18'               Type: III 1 p

Observer: Jere Kahanpää
Obs. place: Jyväskylä, Finland
Date/Time: 25./26.2.1992, 21.00

Telescope: N 205/1000
Magn: 63x               Filter:
Field: 60'              NE Lim.mag: 5.5m
Background sky: 3       Seeing: 4 

Brightness: 3           Alt:    
Description: Not very obvious but still easy. A cluster of about
30 stars NW of a mag. 7 star. Most stars are of 11th magnitude
and a very few a brighter or much fainter.