"apparent magnitude" meaning in English

See apparent magnitude in All languages combined, or Wiktionary

Noun

Audio: LL-Q1860 (eng)-Flame, not lame-apparent magnitude.wav Forms: apparent magnitudes [plural]
Head templates: {{en-noun|~}} apparent magnitude (countable and uncountable, plural apparent magnitudes)
  1. (astronomy) a numerical measure of the brightness of a star, planet etc.; a star with apparent magnitude 0 gives an illuminance of 2.54 microlux just outside the earth's atmosphere, or 82% of that (2.08 microlux) under clear skies, and every increase of 1 unit represents a decrease in the light received by a factor of 2.512. Tags: countable, uncountable Related terms: absolute magnitude, bolometric magnitude Translations (measure of the brightness of a heavenly body): magnitude apparente [feminine] (French), सापेक्ष कांतिमान (sāpekṣ kāntimān) [masculine] (Hindi), méid dhealraitheach [feminine] (Irish), magnitud ketara (Malay), magnitude aparente [feminine] (Portuguese), magnitudine aparentă [feminine] (Romanian), ви́димая звёздная величина́ (vídimaja zvjózdnaja veličiná) [feminine] (Russian)

Inflected forms

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        "a numerical measure of the brightness of a star, planet etc.; a star with apparent magnitude 0 gives an illuminance of 2.54 microlux just outside the earth's atmosphere, or 82% of that (2.08 microlux) under clear skies, and every increase of 1 unit represents a decrease in the light received by a factor of 2.512."
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        [
          "brightness",
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        [
          "star",
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        [
          "planet",
          "planet"
        ],
        [
          "illuminance",
          "illuminance"
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          "increase",
          "increase"
        ],
        [
          "unit",
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        ],
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          "decrease",
          "decrease"
        ],
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          "light",
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        "(astronomy) a numerical measure of the brightness of a star, planet etc.; a star with apparent magnitude 0 gives an illuminance of 2.54 microlux just outside the earth's atmosphere, or 82% of that (2.08 microlux) under clear skies, and every increase of 1 unit represents a decrease in the light received by a factor of 2.512."
      ],
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          "code": "fr",
          "lang": "French",
          "lang_code": "fr",
          "sense": "measure of the brightness of a heavenly body",
          "tags": [
            "feminine"
          ],
          "word": "magnitude apparente"
        },
        {
          "code": "hi",
          "lang": "Hindi",
          "lang_code": "hi",
          "roman": "sāpekṣ kāntimān",
          "sense": "measure of the brightness of a heavenly body",
          "tags": [
            "masculine"
          ],
          "word": "सापेक्ष कांतिमान"
        },
        {
          "code": "ga",
          "lang": "Irish",
          "lang_code": "ga",
          "sense": "measure of the brightness of a heavenly body",
          "tags": [
            "feminine"
          ],
          "word": "méid dhealraitheach"
        },
        {
          "code": "ms",
          "lang": "Malay",
          "lang_code": "ms",
          "sense": "measure of the brightness of a heavenly body",
          "word": "magnitud ketara"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "lang_code": "pt",
          "sense": "measure of the brightness of a heavenly body",
          "tags": [
            "feminine"
          ],
          "word": "magnitude aparente"
        },
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          "code": "ro",
          "lang": "Romanian",
          "lang_code": "ro",
          "sense": "measure of the brightness of a heavenly body",
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            "feminine"
          ],
          "word": "magnitudine aparentă"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "lang_code": "ru",
          "roman": "vídimaja zvjózdnaja veličiná",
          "sense": "measure of the brightness of a heavenly body",
          "tags": [
            "feminine"
          ],
          "word": "ви́димая звёздная величина́"
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        "a numerical measure of the brightness of a star, planet etc.; a star with apparent magnitude 0 gives an illuminance of 2.54 microlux just outside the earth's atmosphere, or 82% of that (2.08 microlux) under clear skies, and every increase of 1 unit represents a decrease in the light received by a factor of 2.512."
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        "(astronomy) a numerical measure of the brightness of a star, planet etc.; a star with apparent magnitude 0 gives an illuminance of 2.54 microlux just outside the earth's atmosphere, or 82% of that (2.08 microlux) under clear skies, and every increase of 1 unit represents a decrease in the light received by a factor of 2.512."
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      "code": "fr",
      "lang": "French",
      "lang_code": "fr",
      "sense": "measure of the brightness of a heavenly body",
      "tags": [
        "feminine"
      ],
      "word": "magnitude apparente"
    },
    {
      "code": "hi",
      "lang": "Hindi",
      "lang_code": "hi",
      "roman": "sāpekṣ kāntimān",
      "sense": "measure of the brightness of a heavenly body",
      "tags": [
        "masculine"
      ],
      "word": "सापेक्ष कांतिमान"
    },
    {
      "code": "ga",
      "lang": "Irish",
      "lang_code": "ga",
      "sense": "measure of the brightness of a heavenly body",
      "tags": [
        "feminine"
      ],
      "word": "méid dhealraitheach"
    },
    {
      "code": "ms",
      "lang": "Malay",
      "lang_code": "ms",
      "sense": "measure of the brightness of a heavenly body",
      "word": "magnitud ketara"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "lang_code": "pt",
      "sense": "measure of the brightness of a heavenly body",
      "tags": [
        "feminine"
      ],
      "word": "magnitude aparente"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "lang_code": "ro",
      "sense": "measure of the brightness of a heavenly body",
      "tags": [
        "feminine"
      ],
      "word": "magnitudine aparentă"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "lang_code": "ru",
      "roman": "vídimaja zvjózdnaja veličiná",
      "sense": "measure of the brightness of a heavenly body",
      "tags": [
        "feminine"
      ],
      "word": "ви́димая звёздная величина́"
    }
  ],
  "word": "apparent magnitude"
}

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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2026-01-13 from the enwiktionary dump dated 2026-01-01 using wiktextract (96027d6 and 9905b1f). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

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