Messier 22 (M22, NGC 6656) is a magnitude 5.1 globular cluster in the constellation
of Sagittarius, and is located at a distance of about 10,400 light years. It has an
apparent dimension of 32 arc minutes. This is pretty low in the sky, which makes it
hard to image clearly, but it is a perennial Chesmont Star Fest object and a popular
and easy-to-find object.
Date: July 15,28 Aug 7,8 2008
Location: New Ringgold PA
Optics: Meade LX200R 12 inch at f/5.9
Mount: Paramount ME
Camera: SBIG ST-8XME / CFW-8
Guiding: ST-8XME integral guiding chip controlled by Maxim CCD
Exposure: LRGB - Luminance: 41x1.5 min, R:6x2.5 min, G:6x2 min, B:7x4min (color
binned 2x2) for a total of 1.9 hours
Processing: Image acquisition using CCD Autopilot. Initial processing was done
using Maxim DL with subsequent processing with Photoshop.
Blue Mountain Vista Observatory New Ringgold PA