21097+4820

  • Unique Name: 21097+4820COU2545
  • RA: 21 09 43.58
  • Dec: +48 20 39.3
  • Discoverer: COU
  • Discoverer Number: 2545
  • Components:
  • First year: 1989
  • Last year: 2008
  • Observations: 3
  • First position angle: 77
  • Last position angle: 70
  • First separation: 0.5
  • Last separation: 0.7
  • Mag first component: 10.68
  • Mag second component: 10.65
  • Spectral type:
  • Primary proper motion RA: 7
  • Primary proper motion DEC: 3
  • Secondary proper motion RA: 7
  • Secondary proper motion DEC: 3
  • Durchmusterung: +47 3313
  • Notes: