M17 - The Swan Nebula

  
 
 
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  • RA: 18:20.8
  • Dec: -16.11
  • Magnitude: 6.0
  • Distance: 5,000 ly
  • Size:  11 arc min
  • Constellation:  Sagittarius
  • Scope: 8" SCT at f/10
  • Autoguider:  ST-4 in faint mode
  • Sky conditions:  good transparency and seeing
  • Film: Hutech modified Canon 300D, ISO 1600
  • Exposure:  5 x 10 minutes
  • Date:  June 12, 2007
 
 
Comments:  The Omega Nebula, also called the Swan Nebula and the Horseshoe Nebula, is a region of star formation and shines by excited emission, caused by the higher energy radiation of young stars. The mass of gas in the nebula has been estimated to about 800 times that of the sun, enough for forming a conspicuous cluster and a good deal more than the Orion nebula.