21519+4221

  • Unique Name: 21519+4221HO 172AB
  • RA: 21 51 53.07
  • Dec: +42 20 40.6
  • Discoverer: HO
  • Discoverer Number: 172
  • Components: AB
  • First year: 1886
  • Last year: 2012
  • Observations: 12
  • First position angle: 88
  • Last position angle: 82
  • First separation: 10.5
  • Last separation: 10.7
  • Mag first component: 7.93
  • Mag second component: 11.26
  • Spectral type: G5
  • Primary proper motion RA: -175
  • Primary proper motion DEC: -306
  • Secondary proper motion RA: -175
  • Secondary proper motion DEC: -306
  • Durchmusterung: +41 4291
  • Notes: NV
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