Sh2-173 (LBN 593) / Mayer 1 (Lund 1155) Bright Nebula / Open Cluster in Cassiopeia

Located at: RA 00 hours 21 minutes 52 seconds, Dec +61 degrees 44 minutes 17 seconds

Size: 25' x 25' / 8.0' Magnitude: --/ -- Class: Emission (Sharpless) 1 2 2 / IV 2 p n   

North is up

West to the right

Telescope:

8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 600 minutes (60 x 10 minute subs), 09/24/25/26/2008; seeing 2.0-3.1 FWHM per CCDStack

Processing:

CCDStack 1.3.7, Photoshop 7.0

Location:

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

Notes:

This object is a little too faint for my conditions (using the Lumicon Red filter). This would be a good one to try a narrow band Ha filter