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Observatory Parameters
Feb 21
Lat. 39.0, Lon. -77.5
Clouds: Seeing:
Waxing Crescent
10:13 23:54
Another iTelescope picture, this one taken in Astrocamp, Nerpio Spain. The object was completely off centre, and the sequence was terminated before completion...
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NGC 891, Astrophotography by Roelof

Equipment

  • Imaging telescope / lens: Planewave CDK 318 Maksutov-Cassegrain 318/2500 mm CDK 318
  • Imaging camera: SBIG Universal
  • Guiding telescope / lens: Planewave CDK 318 Maksutov-Cassegrain 318/2500 mm CDK 318
  • Guiding camera: SBIG Universal
  • Processed with: StarTools 1.4
    Nebulosity

Frames / Subs

  • Lights (filter Luminance): 10 x 300 sec
  • Total integration time: 50:00 min

Acquisition

  • Date: Wed Jan 17th 2018
  • Seeing: 4 / 5
  • Transparency: 4 / 5
  • Sky darkness: 2 / 9
  • Ambient temperature: -2.0 ºC
  • Camera sensor temperature: -20.0 ºC
  • Binning: 2x2

Spatial Info

  • Image Size: 991 x 599 pixels
  • Image Scale: 1.456 arcsec / pixel
  • Visual Field: 0º 24' 04''
  • RA Center: 2h 22m 16s
  • DEC Center: 42º 20' 17''
  • Orientation: 40.552 degrees E of N

Sky Maps

N/A

Comments

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