20301+4857

  • Unique Name: 20301+4857BU 669AB
  • RA: 20 30 03.53
  • Dec: +48 57 05.6
  • Discoverer: BU
  • Discoverer Number: 669
  • Components: AB
  • First year: 1878
  • Last year: 2013
  • Observations: 10
  • First position angle: 343
  • Last position angle: 336
  • First separation: 17.3
  • Last separation: 15.0
  • Mag first component: 4.95
  • Mag second component: 12.9
  • Spectral type: B2.5IV
  • Primary proper motion RA: 11
  • Primary proper motion DEC: 7
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +48 3142
  • Notes: N
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