The Night Sky, Explainedby Dmitry Shteynbuk
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Beyond the SunDefinedTerm

Globular cluster

A dense, spherical swarm of hundreds of thousands of ancient stars.

The Milky Way has about 150 of them, orbiting the galactic center.

Used in these guides

  • The Milky Way: Reading Our Own Galaxy from Inside ItBeyond the Sun
  • Nebulae: The Four Kinds and How to See ThemBeyond the Sun
  • The Southern Sky at 25°N: Stars Miami Sees That the North Never Does25° North
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The Night Sky, Explained — by Dmitry Shteynbuk, Miami, Florida

© 2026 Dmitry Shteynbuk

This is an astronomy site, not an astrology site. If you're looking for horoscopes or zodiac readings, see the explainer on the difference.