Basic object information
Name: Do 21
Type of object: Open cluster
Size: 12.0'
Object classification: IV 2 p

Catalog position for epoch J2000.0
Right ascension: 05h 27m 24.0s
Declination: +7 04' 00"

Constellation: Orion

Observer: Iiro Sairanen
Obs. place: Lakasenpelto, Imatra, Finland
Date/Time: 18/19.2.2004 21:55

Telescope: Newton 406/1830 mm

Magn: 107x


Field: 28'

NE Lim.mag: 5

Background sky: 4

Seeing: 5

Height: 30
Visuality: I
Weather: -22C

The sketch tells everything...