21561+2420

  • Unique Name: 21561+2420STT 454AC
  • RA: 21 56 04.91
  • Dec: +24 20 23.6
  • Discoverer: STT
  • Discoverer Number: 454
  • Components: AC
  • First year: 1891
  • Last year: 2001
  • Observations: 8
  • First position angle: 265
  • Last position angle: 264
  • First separation: 42.9
  • Last separation: 43.0
  • Mag first component: 7.97
  • Mag second component: 11.8
  • Spectral type: A0
  • Primary proper motion RA: 12
  • Primary proper motion DEC: -12
  • Secondary proper motion RA: 8
  • Secondary proper motion DEC: -12
  • Durchmusterung:
  • Notes: