21401+2928

  • Unique Name: 21401+2928BRT 57
  • RA: 21 39 50.92
  • Dec: +29 29 22.1
  • Discoverer: BRT
  • Discoverer Number: 57
  • Components:
  • First year: 1894
  • Last year: 2011
  • Observations: 12
  • First position angle: 134
  • Last position angle: 137
  • First separation: 4.2
  • Last separation: 5.0
  • Mag first component: 10.2
  • Mag second component: 10.3
  • Spectral type:
  • Primary proper motion RA: -21
  • Primary proper motion DEC: 46
  • Secondary proper motion RA: 28
  • Secondary proper motion DEC: -9
  • Durchmusterung:
  • Notes:
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