21023+3931

  • Unique Name: 21023+3931SMY 6AE
  • RA: 21 02 20.96
  • Dec: +39 30 32.5
  • Discoverer: SMY
  • Discoverer Number: 6
  • Components: AE
  • First year: 1862
  • Last year: 2012
  • Observations: 8
  • First position angle: 87
  • Last position angle: 87
  • First separation: 98.9
  • Last separation: 97.0
  • Mag first component: 6.62
  • Mag second component: 10.88
  • Spectral type: K3II-III
  • Primary proper motion RA: 2
  • Primary proper motion DEC: 1
  • Secondary proper motion RA: -3
  • Secondary proper motion DEC: -6
  • Durchmusterung:
  • Notes: N
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