21057+3407

  • Unique Name: 21057+3407TOB 210
  • RA: 21 05 39.89
  • Dec: +34 06 38.7
  • Discoverer: TOB
  • Discoverer Number: 210
  • Components:
  • First year: 1983
  • Last year: 2002
  • Observations: 3
  • First position angle: 59
  • Last position angle: 60
  • First separation: 19.0
  • Last separation: 19.1
  • Mag first component: 12.0
  • Mag second component: 13.2
  • Spectral type:
  • Primary proper motion RA: 1
  • Primary proper motion DEC: -2
  • Secondary proper motion RA: 1
  • Secondary proper motion DEC: -3
  • Durchmusterung:
  • Notes: