21023+3931

  • Unique Name: 21023+3931H 4 113AC
  • RA: 21 02 20.96
  • Dec: +39 30 32.5
  • Discoverer: H 4
  • Discoverer Number: 113
  • Components: AC
  • First year: 1876
  • Last year: 2012
  • Observations: 10
  • First position angle: 270
  • Last position angle: 248
  • First separation: 20.0
  • Last separation: 26.7
  • Mag first component: 6.62
  • Mag second component: 12.5
  • Spectral type: K3II-III
  • Primary proper motion RA: 2
  • Primary proper motion DEC: 1
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung:
  • Notes: N
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