M22 -- Globular Cluster

Object

Type                      Globular Cluster

Constellation            Sagittarius

Distance                 10,400 light years

Magnitude               5.1

Size                       32.0 arc-min

Image

Date                       2008-06-04

Place                      Texas Star Party

Exposure Data          RGB  90:60:120 mins @ -10C

                             R 9x10, G 6x10, B 12x10

Notes                     R, G, B filters binned 2x2

Equipment

Optics                    Takahashi TOA-150

Focal Length            1100 mm @f/7.3

Mount                     Takahashi NJP

Camera                   SBIG ST-10XME

Focuser                  RoboFocus

Filters                     CFW-10, Astrodon LRGB

Software                 TheSky6, CCDSoft, CCDAutopilot3, CCDStack, PhotoShop CS