21506+1559

  • Unique Name: 21506+1559HJ 287
  • RA: 21 50 33.31
  • Dec: +15 59 30.6
  • Discoverer: HJ
  • Discoverer Number: 287
  • Components:
  • First year: 1825
  • Last year: 2001
  • Observations: 3
  • First position angle: 220
  • Last position angle: 216
  • First separation: 10.0
  • Last separation: 16.2
  • Mag first component: 13.21
  • Mag second component: 13.38
  • Spectral type:
  • Primary proper motion RA: 0
  • Primary proper motion DEC: 0
  • Secondary proper motion RA: -20
  • Secondary proper motion DEC: -2
  • Durchmusterung:
  • Notes: