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.

The Beehive Cluster

Beehive Star Cluster (M44): 1000 Stars in Cancer’s Heart

~7 min
Astronomical News

The Beehive Cluster is one of the appealing deep-sky objects for both amateur and professional astronomers. You can find it in the sky, too! Discover when and where to see the cluster and what makes it special.

Pleiades near Moon

The Pleiades: One of the Best Naked-Eye Deep-Sky Objects

~9 min
Astronomical News

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

Star Clusters Visible in March

Top Star Clusters in March: Pleiades, Wishing Well, Beehive

~4 min
Astronomical News

This March, multiple star clusters will be positioned favorably in the sky. We’ve picked the best for you – learn how to see them!

Stargazers looking at the Messier objects

Messier Marathon 2025: How to See 110 Deep-Sky Objects In One Night?

~8 min
Astronomical News

Meet the Messier Marathon – a fun stargazing challenge! Discover how to find dazzling galaxies, star clusters, and nebulae in a single night. Are you ready to try?

Top 10 Deep-Sky Objects of March

Best Deep-Sky Objects by Month: March 2025

~7 min
Astronomical News

Learn about bright galaxies, star clusters, and nebulae that you can see in March. Most of the objects are visible in binoculars!

DSO in February 2024

Best Deep-Sky Objects by Month: February 2025

~8 min
Astronomical News

Learn about galaxies, nebulae, and star clusters that you can see in February 2025. Many of the objects in our list can be observed through binoculars.

NGC 2403

Top 10 Deep-Sky Objects of January 2025

~6 min
Astronomical News

Learn about 9 bright star clusters and 1 spiral galaxy that you can see in the sky in January.

Christmas Stargazing

Magic of the Christmas Night Sky: Planets, Asterisms, and More!

~4 min
Astronomical News

Discover what celestial wonders await you in the Christmas sky this year! From bright planets to unique asterisms, learn how to spot them all.

Pleiades

Top 10 Deep-Sky Objects of December 2025

~6 min
Astronomical News

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

Deep-sky objects in November

Top 13 Deep-Sky Objects of November 2025

~8 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.