21072+3657

  • Unique Name: 21072+3657SEI1407AB
  • RA: 21 07 12.26
  • Dec: +36 57 00.6
  • Discoverer: SEI
  • Discoverer Number: 1407
  • Components: AB
  • First year: 1895
  • Last year: 2012
  • Observations: 11
  • First position angle: 287
  • Last position angle: 274
  • First separation: 10.5
  • Last separation: 13.3
  • Mag first component: 8.18
  • Mag second component: 10.75
  • Spectral type: A0
  • Primary proper motion RA: 1
  • Primary proper motion DEC: 0
  • Secondary proper motion RA: -29
  • Secondary proper motion DEC: -16
  • Durchmusterung: +36 4416
  • Notes: NL
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