21420+1856

  • Unique Name: 21420+1856STF2818AB
  • RA: 21 41 59.91
  • Dec: +18 56 19.7
  • Discoverer: STF
  • Discoverer Number: 2818
  • Components: AB
  • First year: 1895
  • Last year: 2012
  • Observations: 19
  • First position angle: 19
  • Last position angle: 25
  • First separation: 20.0
  • Last separation: 26.3
  • Mag first component: 7.38
  • Mag second component: 10.24
  • Spectral type: G7III
  • Primary proper motion RA: -36
  • Primary proper motion DEC: -46
  • Secondary proper motion RA: 0
  • Secondary proper motion DEC: -3
  • Durchmusterung:
  • Notes: N
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