21517+3716

  • Unique Name: 21517+3716COU1641
  • RA: .
  • Dec: .
  • Discoverer: COU
  • Discoverer Number: 1641
  • Components:
  • First year: 1977
  • Last year: 2008
  • Observations: 2
  • First position angle: 307
  • Last position angle: 308
  • First separation: 1.4
  • Last separation: 1.1
  • Mag first component: 11.0
  • Mag second component: 12.0
  • Spectral type:
  • Primary proper motion RA:
  • Primary proper motion DEC:
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung:
  • Notes:
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