18218+2130

  • Unique Name: 18218+2130BU 641
  • RA: 18 21 48.44
  • Dec: +21 30 27.9
  • Discoverer: BU
  • Discoverer Number: 641
  • Components:
  • First year: 1878
  • Last year: 2011
  • Observations: 79
  • First position angle: 351
  • Last position angle: 342
  • First separation: 1.0
  • Last separation: 0.8
  • Mag first component: 7.03
  • Mag second component: 8.66
  • Spectral type: B9.5II
  • Primary proper motion RA: -3
  • Primary proper motion DEC: -11
  • Secondary proper motion RA: -3
  • Secondary proper motion DEC: -11
  • Durchmusterung: +21 3400
  • Notes:
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