M20 -- TRIFID NEBULA

Object

Type                      Diffuse Nebula

Constellation            Sagittarius

Distance                 5200 light years

Magnitude               9.0

Size                       28.0 arc-min

Image

Date                       2007-07-07

Place                      RMCC Observatory (Mounds)

Exposure Data          LRGB  60:60:60:60 mins @ -10C

                             Lum 12x5, R 12x5, G 12x5, B 12x5

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