21521+2748

  • Unique Name: 21521+2748HO 171
  • RA: 21 52 08.95
  • Dec: +27 48 02.2
  • Discoverer: HO
  • Discoverer Number: 171
  • Components:
  • First year: 1884
  • Last year: 2010
  • Observations: 56
  • First position angle: 359
  • Last position angle: 342
  • First separation: 0.6
  • Last separation: 0.7
  • Mag first component: 9.36
  • Mag second component: 9.5
  • Spectral type: A3
  • Primary proper motion RA: 13
  • Primary proper motion DEC: 4
  • Secondary proper motion RA: 13
  • Secondary proper motion DEC: 4
  • Durchmusterung: +27 4184
  • Notes:
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