Facts and figures

Stars (totals)

Double stars

Variable stars

Stars with exoplanets

Deep sky objects (totals)

• Open clusters: 1903
• Globular clusters: 181
• Asterisms: 536
• Star clouds: 58
• Planetary nebulae: 755
• Galactic nebulae: 530
• Dark nebulae: 526
• Galaxies: 9599
• Groups of galaxies: 508
• Clusters of galaxies: 117
• Quasars: 122

Open clusters

Globular clusters

Asterisms

Star clouds

Planetary nebulae

Galactic nebulae

Dark nebulae

Galaxies

Groups of galaxies

Clusters of galaxies

Quasars