Facts and figures

Stars (totals)

  • Tycho catalog with 201,719 stars to magnitude 9.5
  • 2950 double stars including designations, separations, position angles, and magnitude differences
  • 1168 variable stars including designations, maximum and minimum magnitudes
  • 371 stars with known exoplanets

Double stars

Variable Stars

Stars with exoplanets

Deep sky objects altogether

Open clusters

Globular clusters


Star clouds

Planetary nebulae

Galactic nebulae

Dark nebulae


Groups of galaxies

Clusters of galaxies