18216+2030

  • Unique Name: 18216+2030HO 430
  • RA: 18 21 37.31
  • Dec: +20 30 11.5
  • Discoverer: HO
  • Discoverer Number: 430
  • Components:
  • First year: 1890
  • Last year: 2002
  • Observations: 40
  • First position angle: 192
  • Last position angle: 194
  • First separation: 2.2
  • Last separation: 2.4
  • Mag first component: 9.62
  • Mag second component: 10.73
  • Spectral type: A5
  • Primary proper motion RA: 7
  • Primary proper motion DEC: 6
  • Secondary proper motion RA: 0
  • Secondary proper motion DEC: 0
  • Durchmusterung: +20 3750
  • Notes: