20490+3947

  • Unique Name: 20490+3947STF2731AB
  • RA: 20 49 00.64
  • Dec: +39 47 29.9
  • Discoverer: STF
  • Discoverer Number: 2731
  • Components: AB
  • First year: 1830
  • Last year: 2011
  • Observations: 25
  • First position angle: 86
  • Last position angle: 85
  • First separation: 4.0
  • Last separation: 4.2
  • Mag first component: 7.65
  • Mag second component: 9.59
  • Spectral type: B9IV
  • Primary proper motion RA: 5
  • Primary proper motion DEC: -3
  • Secondary proper motion RA: 5
  • Secondary proper motion DEC: -3
  • Durchmusterung: +39 4331
  • Notes:
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