21497+4857

  • Unique Name: 21497+4857ES 9011
  • RA: 21 49 39.65
  • Dec: +48 57 03.2
  • Discoverer: ES
  • Discoverer Number: 9011
  • Components:
  • First year: 1909
  • Last year: 2003
  • Observations: 3
  • First position angle: 225
  • Last position angle: 216
  • First separation: 5.0
  • Last separation: 5.5
  • Mag first component: 11.6
  • Mag second component: 12.0
  • Spectral type:
  • Primary proper motion RA: 45
  • Primary proper motion DEC: 54
  • Secondary proper motion RA: -7
  • Secondary proper motion DEC: -13
  • Durchmusterung:
  • Notes: