Astronomy Basics

Astronomy is the study of everything in the Universe beyond Earth's atmosphere. That includes objects we can see with our naked eyes, like the Moon, planets, and stars. It also includes objects we can only see with telescopes or binoculars, like distant galaxies and nebulae. But it doesn’t take much skill or equipment to get started with stargazing or amateur astronomy, and you can do it almost anywhere. Here you'll learn all the essential things about astronomy that will help you to pave the way into the world of stargazing.

Astronomical Catalogs

Evolution of Astronomical Catalogs: From Ancient Lists to Billion-Star Databases

~8 min
Astronomical News

What do M, NGC, or HD mean in space objects’ names? Discover the story behind astronomical catalogs and learn how to use them to explore the sky.

Magnitude preview

Magnitude in Astronomy: How is Brightness in Astronomy Measured

~10 min
Astronomical News

How much brighter is the Moon than Venus? How bright do galaxies really appear to us? Are we still using a magnitude scale that was invented almost 1800 years ago? Let's talk about magnitudes!

Planetary Opposition

Planetary Opposition 2025: Best Time to See Planets

~6 min
Astronomical News

The best time to view most planets is at the astronomical opposition. Find out what it means and when to see the upcoming oppositions.

Circumpolar Constellation

Circumpolar Constellations: Visible All The Year Round

~6 min
Astronomical News

Discover the magic of the circumpolar constellations, from ancient myths to modern-day stargazing.

Earth at twilight

Understanding Twilight: Dusk & Dawn, Magic Hours

~8 min
Astronomical News

If you don’t know the difference between twilight and dusk/dawn, read this article! This ultimate guide explains twilight and the terms related to it.

Oort cloud

Explore the Oort Cloud, Home of Long-Period Comets

~7 min
Astronomical News

The Oort cloud is a vast and enigmatic region of space located at the outermost edges of our Solar System. It’s home to long-period comets and trillions of icy objects. Unlock the mysteries of the Oort cloud with this article!

What Are Comets

Comets: All You Need to Know

Infographics

All-round guide about comets: definition, special features, and a couple of tips for aspiring observers.

12 zodiac constellations

Zodiac Constellations And Zodiac Signs: What Are They and How Many Are There?

~9 min
Astronomical News

What is the difference between zodiac constellations and signs? ♈ Are there 12 or 13 zodiac constellations? ⛎ Discover the truth — and learn how to spot your zodiac constellation with a free stargazing app!

Ecliptic

What Is the Ecliptic: The Sun's Path In the Sky

~9 min
Astronomical News

The ecliptic is more than just a scientific term – it's a starting point for exploring the night sky. With the ecliptic, you can track the movements of the Sun, Moon, planets, zodiac constellations, and more. So check out the article and start your astronomical journey!

What is a Supermoon

Supermoon 2025: Why Is The Moon So Big Tonight?

~7 min
Astronomical News

Supermoon – is it worth the hype? 🌕 Find out if the big Moon in the sky is a Supermoon and how extraordinary this event is.