Constellations & Asterisms
A constellation is an area in the sky containing a group of stars that looks like a particular shape. Throughout history, constellations served to navigate the sky, and until now astronomers use their names to point out the sky objects’ locations. The International Astronomical Union formally acknowledges 88 constellations. Some smaller groups of stars are called asterisms – they also have particular shapes, but are composed of stars that are already part of a bigger constellation. The most famous asterism is the Big Dipper, a part of the constellation Ursa Major. Here, we provide detailed articles, colorful infographics, and interesting quizzes on constellations and asterisms. Learn to navigate the sky with us!
What Constellations Are Visible in the Northern Hemisphere by Season?
See the best Northern Hemisphere constellations by season: spring, summer, fall, and winter. Learn which constellations are visible tonight and how to find them in the sky.
Aquila Constellation Guide: Meaning, Stars & How to Find It
Meet the constellation Aquila! Find out when and where to spot it in the night sky, which stars form its shape, and what stories the celestial Eagle carries.
Gemini Constellation: How to Find the Twins in the Night Sky
Learn where to find the Gemini constellation and when to see it, get to know its brightest stars, Castor and Pollux, and explore the myth of the Twins.
Summer Triangle 2026: How to Find Vega, Deneb & Altair
Find the Summer Triangle tonight: learn when and where to see it, which stars form it, and what constellations are inside.
June Constellations: What Stars to See This Month
What constellations are visible in June? Explore the best June constellations, learn their brightest stars, and use our sky maps to find them easily.
Guide to Orion the Hunter: Stars, Belt, Meaning & How to Find It
Discover the Orion constellation, from the iconic three stars of Orion’s Belt to the glowing Orion Nebula, and learn how to find the Hunter constellation in the sky.
Best Constellations to See in May 2026
What constellations can you see in May? Explore the best constellations in May 2026, see their brightest stars, and use our night sky map to find them easily.
April 2026 Constellations: 8 Star Patterns to Find in the Night Sky
What constellations can you see in April? Explore eight April constellations, their brightest stars, and get a helpful night sky map for easy stargazing.
Southern Hemisphere Constellations by Season: Best Southern Sky Constellations
Discover the best Southern Hemisphere constellations by season and learn when and where to spot them in the southern sky.
Spring Triangle: How to Find This Bright Spring Asterism
Learn how to spot the Spring Triangle in the night sky and explore the deep-sky objects it hosts. Perfect for stargazing in March–April!