M 97 (NGC 3587, PK148+57.1) Planetary Nebula in Ursa Major

Located at: RA 11 hours 14 minutes 48 seconds, Dec +55 degrees 01 minutes 09 seconds

Size: 3.4'; Magnitude: 12.0 photographic; Class: 3a

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56

Image:

Red (Hoya 25A) filter, 340 minutes (34 x 10 minute subs), 04/09/10/16/2007

Processing:

CCDStack 1.2, Photoshop 7.0

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes:

Another object that is a little small for 1000mm focal length ... although this image does show the small compact galaxy group Hickson 50, indicated at the left (East) edge of the image. Hickson 50 is comprised of 5 small galaxies magnitude 18.4 to 19.70.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 3587
NGC 3587 = PK 148+57.1 = M97 = Owl Nebula = PN G148.4+57.0
11 14 47.7 +55 01 08
V = 9.8;  Size 202"x196"

17.5": fairly bright, very large, round.  Two low contrast darker "holes" are 
visible with averted vision which form the "eyes" of the "Owl Nebula".  The SE 
hole is darker but the NW hole appears larger.  Central star not visible.

13": moderately bright, large, round.  A single hole west of center is highly 
suspected.

- by Steve Gottlieb