Pickering's Triangle


Date: July 8, 2005
Location: Fremont Peak, CA
Scope: Takahashi FS102 @ 600mm
Guiding: Vixen 60mm refractor with SBIG ST-4
Mount: Losmandy G-11
Camera: SBIG ST2000XM
Filters: Custom Scientific in FLI CFW
Exposure details:
3x30min Hydrogen Alpha for red
3x30min OIII for green
3x30min Sulfur for blue
Processing: MaximDL for calibration, alignment and combining.  PSCS for final processing

Notes:  Pickering's triangle, so named because of its roughly triangular shape, is part of the larger Veil Nebula.  The Veil was created by the nova of a star about 5,000 years ago.  The light recorded in the image left the nebula approximately 1,500 years ago.  The triangle is about 13 light years in length.