21209+2720

  • Unique Name: 21209+2720COU 729
  • RA: 21 20 55.53
  • Dec: +27 19 38.6
  • Discoverer: COU
  • Discoverer Number: 729
  • Components:
  • First year: 1971
  • Last year: 2007
  • Observations: 8
  • First position angle: 318
  • Last position angle: 316
  • First separation: 0.2
  • Last separation: 0.2
  • Mag first component: 10.2
  • Mag second component: 10.2
  • Spectral type: A3
  • Primary proper motion RA: -8
  • Primary proper motion DEC: -15
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +26 4133
  • Notes:
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