21504+3927

  • Unique Name: 21504+3927HO 170
  • RA: 21 50 26.80
  • Dec: +39 26 31.8
  • Discoverer: HO
  • Discoverer Number: 170
  • Components:
  • First year: 1886
  • Last year: 2007
  • Observations: 40
  • First position angle: 162
  • Last position angle: 251
  • First separation: 0.3
  • Last separation: 0.3
  • Mag first component: 7.92
  • Mag second component: 10.05
  • Spectral type: A3
  • Primary proper motion RA: 9
  • Primary proper motion DEC: -12
  • Secondary proper motion RA: 9
  • Secondary proper motion DEC: -12
  • Durchmusterung: +38 4618
  • Notes: