18551+1717

  • Unique Name: 18551+1717COU 721AC
  • RA: 18 55 08.10
  • Dec: +17 17 18.1
  • Discoverer: COU
  • Discoverer Number: 721
  • Components: AC
  • First year: 1971
  • Last year: 2007
  • Observations: 5
  • First position angle: 155
  • Last position angle: 149
  • First separation: 12.0
  • Last separation: 17.6
  • Mag first component: 9.3
  • Mag second component: 11.0
  • Spectral type: G0
  • Primary proper motion RA: -17
  • Primary proper motion DEC: -8
  • Secondary proper motion RA: 7
  • Secondary proper motion DEC: 2
  • Durchmusterung:
  • Notes:
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