21540+1553

  • Unique Name: 21540+1553HJ 288
  • RA: 21 54 01.51
  • Dec: +15 53 08.4
  • Discoverer: HJ
  • Discoverer Number: 288
  • Components:
  • First year: 1825
  • Last year: 2013
  • Observations: 6
  • First position angle: 50
  • Last position angle: 55
  • First separation: 15.0
  • Last separation: 14.0
  • Mag first component: 11.0
  • Mag second component: 12.0
  • Spectral type:
  • Primary proper motion RA: 5
  • Primary proper motion DEC: 4
  • Secondary proper motion RA: 2
  • Secondary proper motion DEC: -3
  • Durchmusterung:
  • Notes: