21174+4020

  • Unique Name: 21174+4020SEI1492
  • RA: 21 17 20.74
  • Dec: +40 19 56.8
  • Discoverer: SEI
  • Discoverer Number: 1492
  • Components:
  • First year: 1895
  • Last year: 2002
  • Observations: 7
  • First position angle: 245
  • Last position angle: 246
  • First separation: 25.3
  • Last separation: 24.7
  • Mag first component: 11.46
  • Mag second component: 12.52
  • Spectral type:
  • Primary proper motion RA: -7
  • Primary proper motion DEC: -7
  • Secondary proper motion RA: -4
  • Secondary proper motion DEC: -4
  • Durchmusterung:
  • Notes:
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