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December: Test shots with new scopes/mounts
Dec 21: TMB 80/480 Arrives!
Dec 3: AP1200 Arrives!
Nov 30: TMB 152/1200 Arrives!
Links:
NGC 7000 & IC 5070 (North American & Pelican Nebulae Widefield)
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| Mouse-over to see annotations. (Requires Javascript) Click to see high-res version. |
Image Details:
- Camera: Mofidied Canon Rebel XT (350D): Hutech Type I Filter Replacement
- Mount: Celestron AS-GT
- Scope: Canon EF 200mm f/2.8L II USM lens
- Configuration: Prime Focus
- Additional Optics: n/a (Prime)
- Filter: None
- Effective Focal Length: 200mm
- Effective Focal Ratio: f/2.8
- Exposure: 46 x 4min @ ISO 800
- Total Exposure: 3hrs, 4min
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- Date: 9/29/2005 PM 9:01:03 PDT (start)
- Location: Saratoga, CA, USA
- Acquisition: DSLRfocus
- Focus: DSLRFocus
- Dithering: Manual
- Guiding: GuideDog via Philips ToUcam Pro II (840k) through Orion ST80 w/ Celestron 2x "Kit" Barlow
Processing:
- IRIS: Dark subtraction, registration, gradient removal
- JimP: Flat field, Kappa-Sigma Stacking, White balance, ASINH stretching
- Photoshop: Levels, cropping, JPG conversion
Image Description:
This is a widefield shot of the North American Nebula (NGC 7000, left) and the Pelican Nebula (IC 5070, right), two emission nebulae in the constellation of Cygnus. This is one of my best widefield images to date. Lots of exposure time and really nailing the focus (always a challange at f/2.8) certainly helped. Mouse over the image to see the annotations. A higher resolution image is also available. North is up.