20553+4218

  • Unique Name: 20553+4218OSO 137AD
  • RA: 20 55 16.75
  • Dec: +42 18 00.6
  • Discoverer: OSO
  • Discoverer Number: 137
  • Components: AD
  • First year: 1995
  • Last year: 2000
  • Observations: 2
  • First position angle: 269
  • Last position angle: 276
  • First separation: 14.0
  • Last separation: 14.3
  • Mag first component: 10.27
  • Mag second component: 18.7
  • Spectral type: G5
  • Primary proper motion RA: 57
  • Primary proper motion DEC: -390
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung:
  • Notes: N