21156+3715

  • Unique Name: 21156+3715HO 285AB
  • RA: 21 15 34.01
  • Dec: +37 15 08.5
  • Discoverer: HO
  • Discoverer Number: 285
  • Components: AB
  • First year: 1888
  • Last year: 2002
  • Observations: 5
  • First position angle: 25
  • Last position angle: 23
  • First separation: 8.6
  • Last separation: 9.2
  • Mag first component: 7.75
  • Mag second component: 12.9
  • Spectral type: B4V
  • Primary proper motion RA: 1
  • Primary proper motion DEC: -4
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +36 4492
  • Notes:
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