18109+5139

  • Unique Name: 18109+5139ES 642
  • RA: 18 10 51.66
  • Dec: +51 39 45.4
  • Discoverer: ES
  • Discoverer Number: 642
  • Components:
  • First year: 1908
  • Last year: 2003
  • Observations: 3
  • First position angle: 274
  • Last position angle: 273
  • First separation: 6.8
  • Last separation: 7.1
  • Mag first component: 10.6
  • Mag second component: 14.6
  • Spectral type: K0
  • Primary proper motion RA: 5
  • Primary proper motion DEC: 2
  • Secondary proper motion RA: -32
  • Secondary proper motion DEC: 0
  • Durchmusterung: +51 2327
  • Notes: