21023+3931

  • Unique Name: 21023+3931WRD 4EH
  • RA: 21 02 29.95
  • Dec: +39 30 38.3
  • Discoverer: WRD
  • Discoverer Number: 4
  • Components: EH
  • First year: 1951
  • Last year: 2012
  • Observations: 5
  • First position angle: 160
  • Last position angle: 160
  • First separation: 37.3
  • Last separation: 37.5
  • Mag first component: 10.88
  • Mag second component: 12.84
  • Spectral type:
  • Primary proper motion RA: -3
  • Primary proper motion DEC: -6
  • Secondary proper motion RA: 25
  • Secondary proper motion DEC: -18
  • Durchmusterung:
  • Notes: N
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