21407+3056

  • Unique Name: 21407+3056GRV 490
  • RA: 21 40 42.88
  • Dec: +30 56 44.9
  • Discoverer: GRV
  • Discoverer Number: 490
  • Components:
  • First year: 1895
  • Last year: 2002
  • Observations: 7
  • First position angle: 329
  • Last position angle: 328
  • First separation: 32.6
  • Last separation: 31.7
  • Mag first component: 11.34
  • Mag second component: 12.07
  • Spectral type:
  • Primary proper motion RA: -13
  • Primary proper motion DEC: -21
  • Secondary proper motion RA: -16
  • Secondary proper motion DEC: -27
  • Durchmusterung:
  • Notes:
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