Sh2-155 - The Cave Nebula
One of a number of HII areas listed in the Sharpless catalogue.

  • RA: 22:58
  • Dec: 62:34
  • Size: 50'x30'
  • Magnitude: ---
  • Distance: ---
  • Constellation: Cepheus
  • Millennium Star Atlas: Vol. III, p. 1069-70
  • Scope: 12.5" Ritchey-Chretien at f/9
  • Autoguider: ST-4 in average mode
  • Sky conditions: Superb transparency, seeing
  • Film: FLI Dream Machine CCD
  • Exposure: 20x90 seconds L, 9,8,10x360 seconds RGB
  • Date: 9-4-03

An evening of absolutely stunning transparency and seeing, especially after the moon set. Of course, the Fates were not content with that and the amount of plane and train traffic was the highest I've ever seen. Toss in a pretty fair amount of meteor traffic (4-5 bolides with one explosion along with more general streaks) and you have the makings of an interesting astronomy shoot.


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