21257+4043

  • Unique Name: 21257+4043COU2306
  • RA: 21 25 44.20
  • Dec: +40 43 43.3
  • Discoverer: COU
  • Discoverer Number: 2306
  • Components:
  • First year: 1985
  • Last year: 1991
  • Observations: 2
  • First position angle: 21
  • Last position angle: 10
  • First separation: 0.6
  • Last separation: 0.7
  • Mag first component: 11.17
  • Mag second component: 11.34
  • Spectral type:
  • Primary proper motion RA: 2
  • Primary proper motion DEC: 4
  • Secondary proper motion RA: 2
  • Secondary proper motion DEC: 4
  • Durchmusterung: +40 4519
  • Notes: