21023+4139

  • Unique Name: 21023+4139ROE 21
  • RA: 21 02 24.72
  • Dec: +41 39 04.3
  • Discoverer: ROE
  • Discoverer Number: 21
  • Components:
  • First year: 1892
  • Last year: 2002
  • Observations: 5
  • First position angle: 223
  • Last position angle: 224
  • First separation: 9.2
  • Last separation: 9.1
  • Mag first component: 11.29
  • Mag second component: 12.0
  • Spectral type:
  • Primary proper motion RA: -1
  • Primary proper motion DEC: -3
  • Secondary proper motion RA: -3
  • Secondary proper motion DEC: -4
  • Durchmusterung: +41 3969
  • Notes: