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 Star Cluster

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

~8 min
Astronomical News

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

Deep-sky objects in July

Top 10 Nebulae to See and Photograph in July 2024

~6 min
Astronomical News

Explore the deep sky in July with our guide to the 10 best nebulae for observation and astrophotography. Get your binos and scopes ready!

Astronomy With Binoculars

Astronomy With Binoculars: Andromeda Galaxy, Orion Nebula, and Much More

~8 min
Astronomical News

Learn what deep-sky objects you can observe with binoculars. Enhance your stargazing experience with smart binoculars from Unistellar.

Top 10 Deep-Sky Objects of June

Top 10 Deep-Sky Objects of June 2024

~6 min
Astronomical News

Explore the best deep-sky objects you can see in June. Beautiful nebulae and star clusters await!

Guess the Nebula!

Guess the Nebula!

Quizzes

Horse or hammer, ant or hourglass? In this quiz, you'll need to guess nebulae names by their photos. Use your imagination and knowledge of the cosmos to determine which of the weird names belongs to which object. This fun and educational quiz is perfect for astronomy enthusiasts and novices alike. Let's dive into the mesmerizing world of nebulae and learn something new about our fascinating universe!

Deep-sky objects in May

Top 10 Deep-Sky Objects of May 2024

~5 min
Astronomical News

Learn about 9 beautiful galaxies and 1 bright nebula that you can see in May 2024. Many of the objects can be observed through binoculars!

DSO in April 2024

Top 10 Deep-Sky Objects of April 2024

~6 min
Astronomical News

Here are the galaxies and star clusters that you can see in April 2024. Most of them can be observed through binoculars!

Bortle Scale of Light Pollution

Understanding the Night Sky: The Bortle Scale

Infographics

Wondering if you can spot that galaxy or nebula from your backyard? 🌌Our infographic has the answers! Here we use the Bortle Scale to illustrate how light pollution affects what you see. Get to know the night sky and enhance your stargazing experience!

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!

Stargazers looking at the Messier objects

Messier Marathon: 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?