20421+5013

  • Unique Name: 20421+5013ES 91BC
  • RA: 20 42 03.89
  • Dec: +50 13 44.8
  • Discoverer: ES
  • Discoverer Number: 91
  • Components: BC
  • First year: 1899
  • Last year: 2003
  • Observations: 10
  • First position angle: 239
  • Last position angle: 247
  • First separation: 16.6
  • Last separation: 14.7
  • Mag first component: 11.7
  • Mag second component: 11.66
  • Spectral type:
  • Primary proper motion RA: -37
  • Primary proper motion DEC: -154
  • Secondary proper motion RA: -10
  • Secondary proper motion DEC: -4
  • Durchmusterung:
  • Notes:
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