21139+2809

  • Unique Name: 21139+2809TDT2843
  • RA: 21 13 54.47
  • Dec: +28 09 22.7
  • Discoverer: TDT
  • Discoverer Number: 2843
  • Components:
  • First year: 1991
  • Last year: 1991
  • Observations: 1
  • First position angle: 162
  • Last position angle: 162
  • First separation: 1.0
  • Last separation: 1.0
  • Mag first component: 11.82
  • Mag second component: 12.4
  • Spectral type:
  • Primary proper motion RA: 5
  • Primary proper motion DEC: 4
  • Secondary proper motion RA: 5
  • Secondary proper motion DEC: 4
  • Durchmusterung:
  • Notes: