21519+4221

  • Unique Name: 21519+4221HO 172AD
  • RA: 21 51 53.07
  • Dec: +42 20 40.6
  • Discoverer: HO
  • Discoverer Number: 172
  • Components: AD
  • First year: 1875
  • Last year: 2003
  • Observations: 9
  • First position angle: 68
  • Last position angle: 61
  • First separation: 480.9
  • Last separation: 480.9
  • Mag first component: 7.93
  • Mag second component: 8.63
  • Spectral type: G5
  • Primary proper motion RA: -175
  • Primary proper motion DEC: -306
  • Secondary proper motion RA: 39
  • Secondary proper motion DEC: 13
  • Durchmusterung: +41 4299
  • Notes: NU
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