21555+2942

  • Unique Name: 21555+2942HO 609AC
  • RA: 21 55 12.36
  • Dec: +29 43 34.6
  • Discoverer: HO
  • Discoverer Number: 609
  • Components: AC
  • First year: 1905
  • Last year: 2012
  • Observations: 7
  • First position angle: 133
  • Last position angle: 133
  • First separation: 13.3
  • Last separation: 22.1
  • Mag first component: 11.5
  • Mag second component: 14.32
  • Spectral type:
  • Primary proper motion RA: -14
  • Primary proper motion DEC: -8
  • Secondary proper motion RA: 1
  • Secondary proper motion DEC: -5
  • Durchmusterung:
  • Notes: N
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