Object Data

Catalog : M 81

Type : Spiralgalaxy

Size : 27´x14´

Mag : 7 m

Constellation : Ursa Major

Distance : 11,2 million ly

Exposure Data

Date : 2007-03-12 UT 20:10

Location : Latidude 52°54´25“ Longitude 8°44´ 24“

Telescope : SuperApo 130 Astreya f/7 with Televue Reducer x0.8

Mount : CGE Celestron

Camera : ST2000XM SBIG

Binning : 1x

Exposuretime : L:3 x 480sec; R+G+B 1x480sec

Prossesing : MaxIm DL; Adobe Photoshop