17420+1557

  • Unique Name: 17420+1557BU 1251AB
  • RA: 17 41 58.64
  • Dec: +15 57 07.8
  • Discoverer: BU
  • Discoverer Number: 1251
  • Components: AB
  • First year: 1891
  • Last year: 2007
  • Observations: 37
  • First position angle: 79
  • Last position angle: 111
  • First separation: 1.4
  • Last separation: 1.4
  • Mag first component: 5.59
  • Mag second component: 9.38
  • Spectral type: F3IV
  • Primary proper motion RA: 1
  • Primary proper motion DEC: 114
  • Secondary proper motion RA: -7
  • Secondary proper motion DEC: 103
  • Durchmusterung: +16 3256
  • Notes: NOD
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