Clusters, Nebulae, Galaxies

Deep-sky objects (DSO) are celestial objects that lie outside the Solar System. They comprise galaxies, planetary nebulae, and star clusters. Deep-sky objects appear as fuzzy spots to the naked eye and start to take shape when looked at through binoculars or a telescope. Here, you’ll learn when and how to observe the most famous DSOs.

Pleiades near Moon

Can You See the Pleiades Tonight? Learn How to See the M45 Star Cluster

~12 min
Astronomical News

How many stars can be observed in the Pleiades star cluster? 💫 Most stargazers only see six – learn how to spot more!

Pleiades

Best Deep-Sky Objects By Month: December 2025

~10 min
Astronomical News

Discover the Andromeda Galaxy, Orion Nebula, Double Cluster in Perseus, and other bright deep-sky objects you can see in December.

Best Deep-Sky Objects: Southern Hemisphere

Best Deep-Sky Objects for Beginners: Southern Hemisphere

Infographics

Learn how to see the brightest deep-sky objects of the southern sky. Some are even visible without optics!

Best Deep-Sky Objects for Beginners (Northern Hemisphere)

Best Deep-Sky Objects for Beginners: Northern Hemisphere

Infographics

Learn how to see the brightest galaxies, nebulae, and star clusters in the Northern Hemisphere. Perfect for budding astronomers!

The Beehive Cluster

Beehive Star Cluster in Cancer: Stars, Location, Mythology

~6 min
Astronomical News

Bright, beautiful, and easy to spot — the Beehive Cluster is a must-see. Learn how to find this star cluster and what makes it special.

Halloween night sky

Stargazing Under the Halloween Night Sky: Uncover Spooky Celestial Wonders

~8 min
Astronomical News

Embrace the spirit of Halloween by exploring the spooky wonders of the cosmos, from demon stars to ghostly nebulae. Get all the cosmic treats this Halloween!

Deep-sky objects in November

Best Deep-Sky Objects By Month: November 2025

~11 min
Astronomical News

Want to see a distant galaxy or nebula with your own eyes? Learn about the best deep-sky objects you can observe in November.

Deep-sky objects in October

Best Deep-Sky Objects by Month: October 2025

~11 min
Astronomical News

See the famous Andromeda Galaxy and many other deep-sky objects this October. Many of them are visible to the naked eye!

Top 12 Deep-Sky Objects of September

Best Deep-Sky Objects by Month: September 2025

~10 min
Astronomical News

Explore the September sky with our guide to the brightest nebulae, star clusters, and galaxies. Get your binoculars and telescopes ready!

Top 10 Deep-Sky Objects of August 2024

Best Deep-Sky Objects by Month: August 2025

~9 min
Astronomical News

Explore the August sky with our guide to the best galaxies, nebulae, and star clusters. Exciting astrophotography targets included!