17564+1820

  • Unique Name: 17564+1820MCA 49Aa,Ab
  • RA: 17 56 24.41
  • Dec: +18 19 37.3
  • Discoverer: MCA
  • Discoverer Number: 49
  • Components: Aa,Ab
  • First year: 1979
  • Last year: 2009
  • Observations: 19
  • First position angle: 58
  • Last position angle: 92
  • First separation: 0.1
  • Last separation: 0.1
  • Mag first component: 6.6
  • Mag second component: 0.0
  • Spectral type: A0III
  • Primary proper motion RA: 20
  • Primary proper motion DEC: -8
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +18 3500
  • Notes: N
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