This glossary of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is concerned with the study of …

These are some of the most common astronomy terms used in the field. Browse the list to become more familiar with the hobby and science of astronomy.

In astronomy, understanding the language and terms used can be a complex task for beginners. This glossary is designed to help demystify some of the most commonly used astronomy terms, making it …

If you ever wonder the meaning of an astronomical word, search no further and browse below to find the definition of the space term. The following are terms from A-Z related to space & astronomy:

This glossary of astronomy terms contains definitions for some of the most common words used in astronomy, cosmology, astrophysics, and space exploration. You can click on any letter of the …

Astronomical terms can be difficult to understand. Explore the definitions and explanations of such terms in our Astronomical Glossary.

Jul 18, 2025 · This glossary brings together concise, factual, and rigorous definitions of the main terms used in astronomy and astrophysics. Each term is presented with its technical definition to better …

Dec 27, 2012 · absolute magnitude: the magnitude an object would have at the standard distance of 10 parsecs. absorption line: a more or less narrow range of wavelengths in a spectrum that is darker …

That’s why I’ve put together this beginner-friendly glossary of astronomy terms. Think of it as your cosmic translator, helping you decode the language of the stars. Whether you’re just starting out with …

Browse through our astronomy dictionary to find definitions for some of the most common terms used in practical astronomy and space science. Click on one of the letters below to search for a term.