21390+5729

  • Unique Name: 21390+5729BU 1143AB
  • RA: 21 38 57.61
  • Dec: +57 29 20.5
  • Discoverer: BU
  • Discoverer Number: 1143
  • Components: AB
  • First year: 1889
  • Last year: 2001
  • Observations: 4
  • First position angle: 324
  • Last position angle: 317
  • First separation: 1.6
  • Last separation: 1.8
  • Mag first component: 5.73
  • Mag second component: 13.3
  • Spectral type: O6f
  • Primary proper motion RA: -3
  • Primary proper motion DEC: -2
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +56 2617
  • Notes: N
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