M11 - Wild Duck Cluster

  
 
 
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  • RA: 18:51.1
  • Dec: -06:16
  • Magnitude: 6.3
  • Distance: 6,000 ly
  • Size:  14.0 arc min
  • Constellation:  Scutum
  • Scope: 8" SCT at f/10
  • Autoguider:  ST-4 in faint mode
  • Sky conditions:  good transparency and seeing
  • Film: Kodak Supra 400
  • Exposure:  20 minutes
  • Date:  August 30, 2002
  
 
Comments:  Only a moderate night for shooting.  Fog formed after midnight.  The Wild Duck Cluster is one of the richest and most compact of the galactic (open) clusters.  It contains an estimated 2900 stars, about 500 of which are brighter than magnitude 14.  The age of the M11 has been estimated at about  250 million years.