21284+3447

  • Unique Name: 21284+3447COU1638
  • RA: 21 28 21.61
  • Dec: +34 47 14.6
  • Discoverer: COU
  • Discoverer Number: 1638
  • Components:
  • First year: 1977
  • Last year: 2009
  • Observations: 6
  • First position angle: 228
  • Last position angle: 226
  • First separation: 1.1
  • Last separation: 1.3
  • Mag first component: 10.2
  • Mag second component: 12.2
  • Spectral type:
  • Primary proper motion RA: 0
  • Primary proper motion DEC: -3
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +34 4424
  • Notes:
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