20217+3657

  • Unique Name: 20217+3657SEI1099
  • RA: 20 21 39.35
  • Dec: +36 56 43.4
  • Discoverer: SEI
  • Discoverer Number: 1099
  • Components:
  • First year: 1896
  • Last year: 2008
  • Observations: 5
  • First position angle: 289
  • Last position angle: 288
  • First separation: 7.2
  • Last separation: 6.7
  • Mag first component: 11.08
  • Mag second component: 12.1
  • Spectral type:
  • Primary proper motion RA: 9
  • Primary proper motion DEC: -19
  • Secondary proper motion RA: -2
  • Secondary proper motion DEC: -3
  • Durchmusterung:
  • Notes: