21431+2157

  • Unique Name: 21431+2157BRT2499
  • RA: 21 43 06.40
  • Dec: +21 57 16.9
  • Discoverer: BRT
  • Discoverer Number: 2499
  • Components:
  • First year: 1938
  • Last year: 2006
  • Observations: 6
  • First position angle: 188
  • Last position angle: 205
  • First separation: 3.0
  • Last separation: 4.6
  • Mag first component: 10.0
  • Mag second component: 10.8
  • Spectral type:
  • Primary proper motion RA: 18
  • Primary proper motion DEC: 16
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung:
  • Notes:
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