21217-7420

  • Unique Name: 21217-7420B 2493
  • RA: 21 21 40.89
  • Dec: -74 20 12.6
  • Discoverer: B
  • Discoverer Number: 2493
  • Components:
  • First year: 1930
  • Last year: 1991
  • Observations: 3
  • First position angle: 171
  • Last position angle: 160
  • First separation: 0.3
  • Last separation: 0.4
  • Mag first component: 10.4
  • Mag second component: 10.43
  • Spectral type:
  • Primary proper motion RA: 76
  • Primary proper motion DEC: -77
  • Secondary proper motion RA: 76
  • Secondary proper motion DEC: -77
  • Durchmusterung: -74 1980
  • Notes: