M-101

M-51 M-101 Galaxy in Ursa Major

10” LX-200 @ f/4.0
25 x 180 Seconds
Genesis KAF-0400
Full BW

 

  This is a mosaic made from the best 25 of 32 3-minute unguided frames. The background varied considerably, due probably to high clouds. A 2.5 pixel radius non-symetrical unsharp mask was applied after DDP.