21151+4257

  • Unique Name: 21151+4257COU2300
  • RA: 21 15 05.11
  • Dec: +42 57 09.4
  • Discoverer: COU
  • Discoverer Number: 2300
  • Components:
  • First year: 1985
  • Last year: 2003
  • Observations: 7
  • First position angle: 277
  • Last position angle: 273
  • First separation: 0.4
  • Last separation: 0.4
  • Mag first component: 8.93
  • Mag second component: 9.52
  • Spectral type: F8
  • Primary proper motion RA: 14
  • Primary proper motion DEC: 5
  • Secondary proper motion RA: 14
  • Secondary proper motion DEC: 5
  • Durchmusterung: +42 4024
  • Notes: