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词汇 absolute magnitude
释义

Definition of absolute magnitude in English:

absolute magnitude

noun
Astronomy
  • The magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs.

    〔天文〕绝对星等。比较 APPARENT MAGNITUDE

    Compare with apparent magnitude
    Example sentencesExamples
    • From the time period, determine the star's actual brightness, also called the absolute magnitude.
    • Their absolute magnitude is that of their appearance at 10 parsecs, or 32.6 light-years.
    • As shown in the preceding section, the spread process is much more volatile relative to the absolute magnitude of the spread.
    • 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.
    Synonyms
    brightness, brilliance, radiance, luminosity

Definition of absolute magnitude in US English:

absolute magnitude

nounˈˌæbsəˈˌl(j)ut ˈmæɡnəˌt(j)ud
Astronomy
  • The magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs.

    〔天文〕绝对星等。比较 APPARENT MAGNITUDE

    Compare with apparent magnitude
    Example sentencesExamples
    • As shown in the preceding section, the spread process is much more volatile relative to the absolute magnitude of the spread.
    • From the time period, determine the star's actual brightness, also called the absolute magnitude.
    • 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.
    • 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.
    • Their absolute magnitude is that of their appearance at 10 parsecs, or 32.6 light-years.
    Synonyms
    brightness, brilliance, radiance, luminosity
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