21139+3830

  • Unique Name: 21139+3830COU1817
  • RA: 21 13 56.08
  • Dec: +38 29 54.9
  • Discoverer: COU
  • Discoverer Number: 1817
  • Components:
  • First year: 1979
  • Last year: 2008
  • Observations: 5
  • First position angle: 112
  • Last position angle: 108
  • First separation: 0.6
  • Last separation: 0.6
  • Mag first component: 9.53
  • Mag second component: 10.27
  • Spectral type: B8
  • Primary proper motion RA: 2
  • Primary proper motion DEC: -4
  • Secondary proper motion RA: 2
  • Secondary proper motion DEC: -4
  • Durchmusterung: +37 4233
  • Notes:
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