21317+4508

  • Unique Name: 21317+4508AG 272
  • RA: 21 31 32.09
  • Dec: +45 08 40.4
  • Discoverer: AG
  • Discoverer Number: 272
  • Components:
  • First year: 1900
  • Last year: 2011
  • Observations: 17
  • First position angle: 182
  • Last position angle: 183
  • First separation: 4.1
  • Last separation: 4.0
  • Mag first component: 10.02
  • Mag second component: 10.19
  • Spectral type:
  • Primary proper motion RA: 8
  • Primary proper motion DEC: 13
  • Secondary proper motion RA: 7
  • Secondary proper motion DEC: 9
  • Durchmusterung: +44 3852
  • Notes: D
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