Definition of absolute magnitude in English:

absolute magnitude

Syllabification: ab·so·lute mag·ni·tude

noun

Astronomy
  • The magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs. Compare with apparent magnitude.
    More example sentences
    • Their absolute magnitude is that of their appearance at 10 parsecs, or 32.6 light-years.
    • An award… shall be presented annually to the amateur astronomer who, using amateur equipment only, discovers the largest absolute magnitude new asteroid having a near-Earth orbit during the preceding calendar year.
    • Relative risk indicates the relative size of the difference in disease rates between two groups, but it gives no indication of the absolute magnitude of the disease rates.

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Word of the day milord
Pronunciation: mɪˈlɔːd
noun
used to address an English nobleman