When you wish to look up a star (or any other celestial body), simply ask Wolfram|Alpha for it by name and find out its distance from Earth, location, size, brightness and more. You can also search for astronomical objects that meet certain criteria. Whether you are a beginner or a seasoned hobbyist, set your sights confidently on the skies using our straightforward answers to everyday astronomy questions.
Know when your stars will align with date- and location-based data.
Explore a wide variety of astronomical trivia that extends beyond what you can see in a telescope.
Expand your knowledge of space with our vast astronomical information.
Learn more about scientific investigations of our solar system and beyond.