21217+4053

  • Unique Name: 21217+4053ES 1691
  • RA: 21 21 40.93
  • Dec: +40 53 19.3
  • Discoverer: ES
  • Discoverer Number: 1691
  • Components:
  • First year: 1917
  • Last year: 1999
  • Observations: 2
  • First position angle: 161
  • Last position angle: 174
  • First separation: 6.8
  • Last separation: 5.4
  • Mag first component: 9.13
  • Mag second component: 13.6
  • Spectral type: F5
  • Primary proper motion RA: 13
  • Primary proper motion DEC: -15
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +40 4499
  • Notes:
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