21228+4031

  • Unique Name: 21228+4031HO 287
  • RA: 21 23 01.74
  • Dec: +40 35 39.3
  • Discoverer: HO
  • Discoverer Number: 287
  • Components:
  • First year: 1889
  • Last year: 2002
  • Observations: 9
  • First position angle: 9
  • Last position angle: 7
  • First separation: 1.6
  • Last separation: 2.6
  • Mag first component: 11.06
  • Mag second component: 11.16
  • Spectral type:
  • Primary proper motion RA: -9
  • Primary proper motion DEC: -12
  • Secondary proper motion RA: -6
  • Secondary proper motion DEC: 17
  • Durchmusterung: +39 4539
  • Notes:
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