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Observatory Parameters
Dec 11
Ashburn
Clouds: Seeing:
Waning Crescent
00:47 13:22
New processing technique using T3 in RAW (black & white) acquisition mode. Process flow: pre-process in B&W (apply darks, flats, bias); batch convert to color (Bayer mosaic); stack; background color correct (white balance); stretch / saturation /etc.; to Raw Therapy for finishing. More subs to be added as this evolves.
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Abell 347, Astrophotography by Magnus

Equipment

  • Imaging telescope / lens: Orion Newtonian 254/1194 mm 10" Newtonian Dobsonian OTA
  • Imaging camera: Canon T3 (CMOS) - modified
  • Mount: Equatorial Orion Atlas
  • Guiding telescope / lens: Orion Refractor 80/480 mm ST-80
  • Guiding camera: ZWO ASI120MC (CMOS)
  • Filters: Astronomic DSLR clip-in Contrast booster CLS-CCD 1.30" 96%
  • Accessories: Coma corrector Mark IV For Newtonian Reflectors f/4.5 - f/6 2.00"
  • Processed with: Nebulosity 3.3
    Raw Therapy

Frames / Subs

  • Lights (filter Contrast booster): 13 x 600 sec
  • Total integration time: 2:10 hours

Acquisition

  • Date: Thu Nov 16th 2017
  • Seeing: 3 / 5
  • Transparency: 2 / 5
  • Sky darkness: 5 / 9
  • Ambient temperature: 55.0 ºF
  • Binning: 2x2
  • ISO: 1600

Spatial Info

  • Image Size: 4,219 x 2,753 pixels
  • Image Scale: 0.881 arcsec / pixel
  • Visual Field: 1º 01' 57''
  • RA Center: 2h 24m 41s
  • DEC Center: 42º 03' 54''
  • Orientation: -115.699 degrees E of N

Sky Maps

N/A

Comments

Astronomy Quote of the Day

“The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the Universe to do.” Galileo Galilei
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