20421+5013

  • Unique Name: 20421+5013ES 91AC
  • RA: 20 42 03.97
  • Dec: +50 13 49.1
  • Discoverer: ES
  • Discoverer Number: 91
  • Components: AC
  • First year: 1911
  • Last year: 2003
  • Observations: 8
  • First position angle: 234
  • Last position angle: 235
  • First separation: 18.1
  • Last separation: 17.5
  • Mag first component: 11.54
  • Mag second component: 11.66
  • Spectral type:
  • Primary proper motion RA: 1
  • Primary proper motion DEC: 80
  • Secondary proper motion RA: -10
  • Secondary proper motion DEC: -4
  • Durchmusterung:
  • Notes: