21057+4748

  • Unique Name: 21057+4748BU 158
  • RA: 21 05 43.99
  • Dec: +47 48 17.0
  • Discoverer: BU
  • Discoverer Number: 158
  • Components:
  • First year: 1873
  • Last year: 2003
  • Observations: 13
  • First position angle: 320
  • Last position angle: 306
  • First separation: 12.0
  • Last separation: 11.3
  • Mag first component: 7.45
  • Mag second component: 12.0
  • Spectral type: B9V
  • Primary proper motion RA: 5
  • Primary proper motion DEC: 3
  • Secondary proper motion RA:
  • Secondary proper motion DEC:
  • Durchmusterung: +47 3284
  • Notes:
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