Basic object information
Name: M 102?
Type of object: Galaxy
Magnitude: 9.9
Surface brightness: 11.8 mag/sq arcmin
Size: 6.5'x3.1'
Position angle: 128
Object classification: Sa
Description: vB,cL,pME146,gbM
Notes: vBN w dk lane and ansae;NGC 5867 small E neb;H I 215

Catalog position for epoch J2000.0
Right ascension: 15h 06m 30.2s
Declination: +55 45' 45"

Constellation: Draco

Observer: Iiro Sairanen
Obs. place: Ahola, Joutseno, Finland
Date/Time: 24/25.4.2003 1.15

Telescope: 16" Dobson f 4.5

Magn: 292x


Field: 11'

NE Lim.mag: 6,2

Background sky: 3

Seeing: 2

Height: 81
Visuality: I
Weather: -5C, northern lights

Sivultapäin näkyvän linssin muotoinen galaksi. Ydin osien pintakirkkaus todella suuri.