21139+4042

  • Unique Name: 21139+4042TDT2840
  • RA: 21 13 56.11
  • Dec: +40 42 10.6
  • Discoverer: TDT
  • Discoverer Number: 2840
  • Components:
  • First year: 1991
  • Last year: 1991
  • Observations: 1
  • First position angle: 235
  • Last position angle: 235
  • First separation: 0.7
  • Last separation: 0.7
  • Mag first component: 11.69
  • Mag second component: 11.84
  • Spectral type:
  • Primary proper motion RA: 34
  • Primary proper motion DEC: 17
  • Secondary proper motion RA: 34
  • Secondary proper motion DEC: 17
  • Durchmusterung:
  • Notes: