The Dark Shark Nebula (LDN 1235)

I captured this image of a dark nebula with my telescope equipment while at Mount Rainier National Park. The combined exposure to create this photo was 4.5 hours using a computerized mount that held my 8" Newtonian telescope, which kept the stars sharp and pinpoint. This nebula is made out of dust and gas that star light illuminates, so we can see the structure. The brilliant gold and blue stars burn at different temperatures, yellow stars burn cooler and blue stars burn hotter.

 

Object: Dark Shark Nebula (LDN 1235)

Optics: ASA 8" H F/2.8 Astrograph

Mount: Orion Atlas EQ-G

Guiding: 50 mm Finder, Orion SSAG and PhD

Camera: Astrodon Filter Modified Canon Xsi (450D)

F/stop: F/2.8

Exposure: 4.5 hours

ISO: 1600

Mode: RAW

White Balance: Custom

Filter: None

Conditions: Temp. 45 degrees F

Dates: August 7th and August 16th, 2015

Location: Mount Rainier National Park, WA

Calibration: ImagesPlus 4.50

Calibration Frames: Darks, flats, flat darks and bias

Processing: PixInsight and Photoshop

Done