21457+2100

  • Unique Name: 21457+2100UC 4553
  • RA: 21 45 42.63
  • Dec: +21 00 22.0
  • Discoverer: UC
  • Discoverer Number: 4553
  • Components:
  • First year: 1999
  • Last year: 2001
  • Observations: 2
  • First position angle: 185
  • Last position angle: 185
  • First separation: 60.3
  • Last separation: 60.1
  • Mag first component: 15.4
  • Mag second component: 16.1
  • Spectral type:
  • Primary proper motion RA: -2
  • Primary proper motion DEC: -86
  • Secondary proper motion RA: -19
  • Secondary proper motion DEC: -62
  • Durchmusterung:
  • Notes: V
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