Planetary Nebula M97 (NGC 3587), type 3a, in Ursa Major. "Owl Nebula".
RA 11 : 14.8 (h:m); DEC +55 : 01 (deg:m); Distance 2600 light years;
Visual Brightness 9.9 (mag); Apparent Dimension 3.4x3.3 (arc min)
The Owl Nebula M97 is one of the fainter objects in Messier's catalog; the name "Owl Nebula" goes back to Lord Rosse, who first used it in 1848.
Source and more: SEDS
January 25, 2007 22:49 - 23:02 UT.
Imaged with LX200 10-inch f/10 telescope with 0.33 Focal Reducer operating at f/4.06 [focal length 1015mm], Vesta Pro-SC3a b/w RAW mode, Baader Infra Red Blocking Filter.
31 unguided exposures of 15 seconds.