21517+1918

  • Unique Name: 21517+1918BU 1506AC
  • RA: 21 51 40.18
  • Dec: +19 18 25.0
  • Discoverer: BU
  • Discoverer Number: 1506
  • Components: AC
  • First year: 1908
  • Last year: 2001
  • Observations: 4
  • First position angle: 121
  • Last position angle: 118
  • First separation: 26.1
  • Last separation: 29.6
  • Mag first component: 6.93
  • Mag second component: 12.6
  • Spectral type: F5IV
  • Primary proper motion RA: -35
  • Primary proper motion DEC: -8
  • Secondary proper motion RA: 11
  • Secondary proper motion DEC: -1
  • Durchmusterung:
  • Notes:
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