21520+3857

  • Unique Name: 21520+3857COU1823
  • RA: 21 52 02.50
  • Dec: +38 57 16.5
  • Discoverer: COU
  • Discoverer Number: 1823
  • Components:
  • First year: 1979
  • Last year: 2010
  • Observations: 5
  • First position angle: 6
  • Last position angle: 12
  • First separation: 1.2
  • Last separation: 1.0
  • Mag first component: 7.69
  • Mag second component: 11.54
  • Spectral type: K0
  • Primary proper motion RA: 93
  • Primary proper motion DEC: 23
  • Secondary proper motion RA: 93
  • Secondary proper motion DEC: 26
  • Durchmusterung: +38 4625
  • Notes: