20542-2730

  • Unique Name: 20542-2730B 509AC
  • RA: 20 54 09.69
  • Dec: -27 29 53.4
  • Discoverer: B
  • Discoverer Number: 509
  • Components: AC
  • First year: 1913
  • Last year: 1999
  • Observations: 5
  • First position angle: 356
  • Last position angle: 69
  • First separation: 6.0
  • Last separation: 2.5
  • Mag first component: 10.72
  • Mag second component: 11.21
  • Spectral type: F7V
  • Primary proper motion RA: -29
  • Primary proper motion DEC: -9
  • Secondary proper motion RA: 45
  • Secondary proper motion DEC: 10
  • Durchmusterung:
  • Notes: N
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