21317+3730

  • Unique Name: 21317+3730GRV 474
  • RA: 21 31 42.80
  • Dec: +37 30 34.2
  • Discoverer: GRV
  • Discoverer Number: 474
  • Components:
  • First year: 1929
  • Last year: 2002
  • Observations: 5
  • First position angle: 237
  • Last position angle: 236
  • First separation: 24.7
  • Last separation: 24.6
  • Mag first component: 10.46
  • Mag second component: 11.97
  • Spectral type:
  • Primary proper motion RA: 75
  • Primary proper motion DEC: 57
  • Secondary proper motion RA: 79
  • Secondary proper motion DEC: 55
  • Durchmusterung: +36 4598
  • Notes: