20391+1550

  • Unique Name: 20391+1550BU 288AD
  • RA: 20 39 04.97
  • Dec: +15 50 17.6
  • Discoverer: BU
  • Discoverer Number: 288
  • Components: AD
  • First year: 1934
  • Last year: 2007
  • Observations: 5
  • First position angle: 145
  • Last position angle: 147
  • First separation: 30.3
  • Last separation: 29.3
  • Mag first component: 5.97
  • Mag second component: 14.4
  • Spectral type: B3V
  • Primary proper motion RA: -1
  • Primary proper motion DEC: -15
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung:
  • Notes: N