21550+5442

  • Unique Name: 21550+5442A 1800
  • RA: 21 54 59.16
  • Dec: +54 42 31.0
  • Discoverer: A
  • Discoverer Number: 1800
  • Components:
  • First year: 1907
  • Last year: 2001
  • Observations: 9
  • First position angle: 32
  • Last position angle: 28
  • First separation: 1.2
  • Last separation: 1.3
  • Mag first component: 10.31
  • Mag second component: 11.06
  • Spectral type:
  • Primary proper motion RA: 25
  • Primary proper motion DEC: 31
  • Secondary proper motion RA: 25
  • Secondary proper motion DEC: 31
  • Durchmusterung: +54 2647
  • Notes:
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