Astrolights.de
Pickering's Triangle - RGB + HaOIII
Imaging telescope or lens:GSO 8" f/5 Newton
Imaging camera:ZWO ASI 183 MM PRO
Mount:SkyWatcher NEQ6 Pro Goto
Guiding telescope or lens:GSO 8" f/5 Newton
Guiding camera:Astrolumina Alccd5L-IIc
Focal reducer:Pal Gyulai GPU Aplanatic Koma Korrector 4-element
Software:Adobe PhotoShop CS5, FitsWork 4, CCDCiel, DeepSky Stacker Deep Sky Stacker 3.3.4, PHD2 Guiding
Filters:Baader Ha 1.25" 7nm, Baader Planetarium O3 1.25" 8.5nm, Baader R 1.25'' CCD Filter, Baader B 1.25'' CCD Filter, Baader G 1.25'' CCD Filter
Accessory:TSOptics TS Off Axis Guider - 9mm
Dates:Aug. 12, 2018, Aug. 15, 2018
Frames:
Baader B 1.25'' CCD Filter: 21x120" (gain: 200.00) -20C bin 1x1
Baader G 1.25'' CCD Filter: 21x120" (gain: 200.00) -20C bin 1x1
Baader Ha 1.25" 7nm: 9x600" (gain: 200.00) -20C bin 1x1
Baader Planetarium O3 1.25" 8.5nm: 8x600" (gain: 200.00) -20C bin 1x1
Baader R 1.25'' CCD Filter: 33x120" (gain: 200.00) -20C bin 1x1
Integration: 5.3 hours
Darks: 29
Flats: 27
Object description (wikipedia.org) :
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded circa 3,000 BC to 6,000 BC, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full Moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.
The Hubble Space Telescope captured several images of the nebula. The analysis of the emissions from the nebula indicate the presence of oxygen, sulfur, and hydrogen. This is also one of the largest, brightest features in the x-ray sky.
Pickering's Triangle (or Pickering's Triangular Wisp), brightest at the north central edge of the loop, but visible in photographs continuing toward the central area of the loop.
Pickering's Triangle - RGB + HaOIII
Imaging telescope or lens:GSO 8" f/5 Newton
Imaging camera:ZWO ASI 183 MM PRO
Mount:SkyWatcher NEQ6 Pro Goto
Guiding telescope or lens:GSO 8" f/5 Newton
Guiding camera:Astrolumina Alccd5L-IIc
Focal reducer:Pal Gyulai GPU Aplanatic Koma Korrector 4-element
Software:Adobe PhotoShop CS5, FitsWork 4, CCDCiel, DeepSky Stacker Deep Sky Stacker 3.3.4, PHD2 Guiding
Filters:Baader Ha 1.25" 7nm, Baader Planetarium O3 1.25" 8.5nm, Baader R 1.25'' CCD Filter, Baader B 1.25'' CCD Filter, Baader G 1.25'' CCD Filter
Accessory:TSOptics TS Off Axis Guider - 9mm
Dates:Aug. 12, 2018, Aug. 15, 2018
Frames:
Baader B 1.25'' CCD Filter: 21x120" (gain: 200.00) -20C bin 1x1
Baader G 1.25'' CCD Filter: 21x120" (gain: 200.00) -20C bin 1x1
Baader Ha 1.25" 7nm: 9x600" (gain: 200.00) -20C bin 1x1
Baader Planetarium O3 1.25" 8.5nm: 8x600" (gain: 200.00) -20C bin 1x1
Baader R 1.25'' CCD Filter: 33x120" (gain: 200.00) -20C bin 1x1
Integration: 5.3 hours
Darks: 29
Flats: 27
Object description (wikipedia.org) :
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded circa 3,000 BC to 6,000 BC, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full Moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.
The Hubble Space Telescope captured several images of the nebula. The analysis of the emissions from the nebula indicate the presence of oxygen, sulfur, and hydrogen. This is also one of the largest, brightest features in the x-ray sky.
Pickering's Triangle (or Pickering's Triangular Wisp), brightest at the north central edge of the loop, but visible in photographs continuing toward the central area of the loop.