21391+5500

  • Unique Name: 21391+5500STI2580
  • RA: 21 39 03.17
  • Dec: +54 59 41.9
  • Discoverer: STI
  • Discoverer Number: 2580
  • Components:
  • First year: 1905
  • Last year: 2003
  • Observations: 3
  • First position angle: 32
  • Last position angle: 31
  • First separation: 5.2
  • Last separation: 5.2
  • Mag first component: 11.5
  • Mag second component: 11.9
  • Spectral type:
  • Primary proper motion RA: -4
  • Primary proper motion DEC: -11
  • Secondary proper motion RA: 10
  • Secondary proper motion DEC: 2
  • Durchmusterung:
  • Notes: