21457+3152

  • Unique Name: 21457+3152J 2356
  • RA: 21 45 37.39
  • Dec: +31 51 55.5
  • Discoverer: J
  • Discoverer Number: 2356
  • Components:
  • First year: 1902
  • Last year: 2002
  • Observations: 5
  • First position angle: 141
  • Last position angle: 135
  • First separation: 4.7
  • Last separation: 6.3
  • Mag first component: 12.81
  • Mag second component: 12.97
  • Spectral type:
  • Primary proper motion RA: 0
  • Primary proper motion DEC: 1
  • Secondary proper motion RA: 18
  • Secondary proper motion DEC: -7
  • Durchmusterung:
  • Notes: B
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