21387+3848

  • Unique Name: 21387+3848ALI 977
  • RA: 21 38 42.21
  • Dec: +38 47 39.5
  • Discoverer: ALI
  • Discoverer Number: 977
  • Components:
  • First year: 1928
  • Last year: 2002
  • Observations: 5
  • First position angle: 222
  • Last position angle: 221
  • First separation: 10.4
  • Last separation: 11.5
  • Mag first component: 12.18
  • Mag second component: 12.01
  • Spectral type:
  • Primary proper motion RA: -4
  • Primary proper motion DEC: -3
  • Secondary proper motion RA: -26
  • Secondary proper motion DEC: -6
  • Durchmusterung:
  • Notes: