21023+3931

  • Unique Name: 21023+3931WRD 4AG
  • RA: 21 02 29.95
  • Dec: +39 30 38.3
  • Discoverer: WRD
  • Discoverer Number: 4
  • Components: AG
  • First year: 1875
  • Last year: 2002
  • Observations: 3
  • First position angle: 230
  • Last position angle: 223
  • First separation: 95.0
  • Last separation: 101.3
  • Mag first component: 6.62
  • Mag second component: 12.46
  • Spectral type: K3II-III
  • Primary proper motion RA: 2
  • Primary proper motion DEC: 1
  • Secondary proper motion RA: -12
  • Secondary proper motion DEC: -13
  • Durchmusterung:
  • Notes: N
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