20177+2025

  • Unique Name: 20177+2025BTG 4AD
  • RA: 20 17 44.53
  • Dec: +20 25 23.0
  • Discoverer: BTG
  • Discoverer Number: 4
  • Components: AD
  • First year: 1999
  • Last year: 2007
  • Observations: 3
  • First position angle: 170
  • Last position angle: 170
  • First separation: 33.8
  • Last separation: 33.7
  • Mag first component: 8.2
  • Mag second component: 13.5
  • Spectral type:
  • Primary proper motion RA: 9
  • Primary proper motion DEC: 3
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung:
  • Notes: