21009+5931

  • Unique Name: 21009+5931ES 2703
  • RA: 21 00 55.77
  • Dec: +59 30 48.5
  • Discoverer: ES
  • Discoverer Number: 2703
  • Components:
  • First year: 1897
  • Last year: 2005
  • Observations: 9
  • First position angle: 227
  • Last position angle: 230
  • First separation: 10.3
  • Last separation: 10.4
  • Mag first component: 10.49
  • Mag second component: 10.59
  • Spectral type:
  • Primary proper motion RA: 5
  • Primary proper motion DEC: 4
  • Secondary proper motion RA: 1
  • Secondary proper motion DEC: 4
  • Durchmusterung: +58 2209
  • Notes: