21017+0310

  • Unique Name: 21017+0310BAL2042
  • RA: 21 01 44.51
  • Dec: +03 09 30.2
  • Discoverer: BAL
  • Discoverer Number: 2042
  • Components:
  • First year: 1984
  • Last year: 2000
  • Observations: 3
  • First position angle: 129
  • Last position angle: 128
  • First separation: 7.1
  • Last separation: 8.1
  • Mag first component: 11.51
  • Mag second component: 13.0
  • Spectral type:
  • Primary proper motion RA: 6
  • Primary proper motion DEC: -6
  • Secondary proper motion RA: 31
  • Secondary proper motion DEC: -12
  • Durchmusterung:
  • Notes: