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Comet 73P/Schwassmann-Wachmann 3


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About this observation
Nick Evetts 2E0LUN/KC2VWR
Time of observation
19/02/2017 - 08:02
Comet 73P/Schwassmann-Wachmann 3
Observing location
La Dehesa Chile
Slooh Chile 1 High Mag
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dawson's picture

Nice. What is the aperture and focal length of the scope here? How long is the exposure? 

Nick 2E0LUN's picture

The Exposure  was Eyeballed by me but normally is 5 mins if  left to the software 


  • Manufacturer: Celestron
  • Model: EdgeHD 1400 Schmidt-Cassegrain Catadioptric (SCT)
  • Aperture: 14" (355.6mm)
  • Focal Length: 3910mm (154")
  • Nominal Focal Ratio: f/11

CCD Camera:

  • Manufacturer: SBIG
  • Model: STL-11000M
  • CCD chip: Kodak KAI-11000
  • Resolution: 4008×2672 (at Binning 1×1)
  • Pixel Size: 9×9μm
  • Sensor Size: 36.072×24.048mm
  • Peak QE: 42%
  • Anti-Blooming: Yes


  • Type: Luminance, Red, Green, Blue, Clear

Image Specification:

  • Image Scale: 0.47arcseconds/pixel (binned 1×1)
  • North Angle: 0° (North-Up)
  • Angular Size: 0° 31' 18" x 0° 20' 51" (Field-Of-View)
  • Resolution:
  • Binning 1×1: 4008×2672
  • Binning 2×2: 2004×1336
  • Binning 3×3: 1336×891


  • Manufacturer: Software Bisque
  • Model: Paramount ME
  • Type: German Equatorial Mount (GEM)
  • Instrument Capacity: 150lbs (60kg)
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