21189+3909

  • Unique Name: 21189+3909AG 270
  • RA: 21 18 57.53
  • Dec: +39 09 46.4
  • Discoverer: AG
  • Discoverer Number: 270
  • Components:
  • First year: 1895
  • Last year: 2007
  • Observations: 21
  • First position angle: 122
  • Last position angle: 112
  • First separation: 4.8
  • Last separation: 5.9
  • Mag first component: 9.21
  • Mag second component: 10.28
  • Spectral type: F0
  • Primary proper motion RA: 15
  • Primary proper motion DEC: -3
  • Secondary proper motion RA: 17
  • Secondary proper motion DEC: -7
  • Durchmusterung: +38 4442
  • Notes: D
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