21256+2957

  • Unique Name: 21256+2957J 3139
  • RA: 21 25 31.35
  • Dec: +29 58 57.9
  • Discoverer: J
  • Discoverer Number: 3139
  • Components:
  • First year: 1944
  • Last year: 2004
  • Observations: 4
  • First position angle: 335
  • Last position angle: 332
  • First separation: 6.0
  • Last separation: 6.7
  • Mag first component: 10.8
  • Mag second component: 10.9
  • Spectral type:
  • Primary proper motion RA: 8
  • Primary proper motion DEC: -15
  • Secondary proper motion RA: -6
  • Secondary proper motion DEC: -2
  • Durchmusterung:
  • Notes:
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