SaratogaSkies Jim Solomon's Astropics


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M8 (Lagoon Nebula)   [obsolete]

Image Details:

Camera: Canon Digital Rebel (300D)
Mount: Celestron AS-GT
Scope: Celestron C8-N (8" f/5 Newtonian)
Configuration: Prime Focus
Additional Optics: n/a (Prime)
Filter: None
Effective Focal Length: 1000mm
Effective Focal Ratio: f/5
Exposure: 30 x 1min @ ISO 800
Total Exposure: 0hrs, 30min
Date: 6/22/2004, 1:51am PDT (start)
Location: Saratoga, CA, USA
Acquisition: Manual
Focus: DSLRFocus
Dithering: None
Guiding: None


  • IRIS: Dark subtraction, flat frame, registration, and stacking
  • Photoshop: Noise reduction, image scale (1/4x), JPG conversion

Image Description:

The "summer" Milky Way -- summer, that is, in the Northern Hemisphere -- is a glorious site to behold, especially with an 8" pupil and a 30min integration time! This is the Lagoon Nebula (aka Hour Glass Nebula), a stunningly beautiful emission nebula in the constellation of Sagittarius. The collection of bright, white stars just left of center is the Open Cluster NGC 6530. The seeing and transparency were only average the morning this was shot. I can only imagine how this would have turned out on a night of exceptional seeing and transparency. North is up.