21474+4256

  • Unique Name: 21474+4256A 405
  • RA: 21 47 21.71
  • Dec: +42 55 58.1
  • Discoverer: A
  • Discoverer Number: 405
  • Components:
  • First year: 1902
  • Last year: 2005
  • Observations: 7
  • First position angle: 275
  • Last position angle: 278
  • First separation: 1.7
  • Last separation: 1.9
  • Mag first component: 9.91
  • Mag second component: 11.61
  • Spectral type: A2
  • Primary proper motion RA: -6
  • Primary proper motion DEC: -8
  • Secondary proper motion RA: -6
  • Secondary proper motion DEC: -8
  • Durchmusterung: +42 4209
  • Notes:
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