21098+3504

  • Unique Name: 21098+3504ES 2257BC
  • RA: 21 09 46.63
  • Dec: +35 04 20.7
  • Discoverer: ES
  • Discoverer Number: 2257
  • Components: BC
  • First year: 1926
  • Last year: 2012
  • Observations: 4
  • First position angle: 271
  • Last position angle: 260
  • First separation: 4.2
  • Last separation: 5.6
  • Mag first component: 11.46
  • Mag second component: 13.6
  • Spectral type:
  • Primary proper motion RA: 2
  • Primary proper motion DEC: 6
  • Secondary proper motion RA: -9
  • Secondary proper motion DEC: 2
  • Durchmusterung:
  • Notes:
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