18554+1331

  • Unique Name: 18554+1331BU 647AC
  • RA: 18 55 26.45
  • Dec: +13 31 06.8
  • Discoverer: BU
  • Discoverer Number: 647
  • Components: AC
  • First year: 1877
  • Last year: 2004
  • Observations: 25
  • First position angle: 217
  • Last position angle: 218
  • First separation: 20.0
  • Last separation: 18.8
  • Mag first component: 9.95
  • Mag second component: 10.27
  • Spectral type: B9
  • Primary proper motion RA: 3
  • Primary proper motion DEC: -6
  • Secondary proper motion RA: 0
  • Secondary proper motion DEC: 1
  • Durchmusterung:
  • Notes: N
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