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Observatory Parameters
Dec 14
Clouds: Seeing:
Waning Crescent
03:46 14:54
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Horsehead Nebula, Astrophotography by setheddy


  • Imaging telescope / lens: GSO Ritchey-Chrétien 254/2000 mm
  • Imaging camera: QSI (Quantum Scientific Imaging) 532 wsg
  • Mount: Equatorial AP 900
  • Guiding camera: Starlight XPress loadstar
  • Processed with: Photoshop

Frames / Subs

  • Lights (filter H-alpha): 16 x 900 sec
  • Total integration time: 4:00 hours


  • Camera sensor temperature: -15.0 ºC
  • Binning: 1x1

Spatial Info

  • Image Size: 2,142 x 1,444 pixels

Sky Maps



Astronomy Quote of the Day

“There comes a point in your life when you realize how quickly time goes by, and how quickly it has gone. Then it really speeds up exponentially. With that, I think you start to put a lot of things into context; you start to see how huge the world is, and really, the Universe.” Michael Keaton
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