Astronomy and astrophysics Spherical astronomy and astrometry Concept
Absolute magnitude
Summary
The absolute magnitude of a star or galaxy is the apparent magnitude it would have if it were placed at a distance of parsecs. It measures how luminous the object really is, independently of its distance. Comparing absolute and apparent magnitudes gives distances.
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Further reading
About this page
| Tag | D7EAZ5F0YT |
|---|---|
| URI | m2://D7EAZ5F0YT |
| Kind | concept |
| Writing | W0 stub |
| MSC | 85A04 |
| Same as | |
| Changed | 3 November 2026 |
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