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.

Milky Way F.A.Q.

Milky Way Galaxy: All You Need To Know

~8 min
Astronomical News

How many stars are in the Milky Way? What is at its center? How do we know what it looks like? Read this article to answer these and more questions.

15 star clusters

List of 15 Brightest Star Clusters

~8 min
Astronomical News

Find here the 15 brightest star clusters you can see without any special equipment. Observing deep-sky objects is easier than you think!

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!

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.

Deep-sky objects in May

Best Deep-Sky Objects by Month: May 2025

~9 min
Astronomical News

Learn about the 15 deep-sky objects that you can see in May 2025. Many of them can be observed through binoculars!

DSO in April 2024

Best Deep-Sky Objects by Month: April 2025

~9 min
Astronomical News

Here are the galaxies, nebulae, and star clusters that you can see in April 2025. Most of them can be observed through binoculars!

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.