20423+2457

  • Unique Name: 20423+2457POU4897
  • RA: 20 42 21.32
  • Dec: +24 57 31.2
  • Discoverer: POU
  • Discoverer Number: 4897
  • Components:
  • First year: 1899
  • Last year: 2008
  • Observations: 4
  • First position angle: 185
  • Last position angle: 183
  • First separation: 9.4
  • Last separation: 9.8
  • Mag first component: 13.8
  • Mag second component: 14.3
  • Spectral type:
  • Primary proper motion RA: 0
  • Primary proper motion DEC: 150
  • Secondary proper motion RA: -6
  • Secondary proper motion DEC: 7
  • Durchmusterung:
  • Notes: