Definitions for intrinsic brightness
in·trin·sic bright·ness

WiktionaryRate this definition:1.0 / 1 vote

1. intrinsic brightnessnoun

   The brightness a star would have if not attenuated by distance or intervening gas or dust. As opposed to apparent brightness which it has as measured at a distance.

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1. intrinsic brightness

   Absolute magnitude (M) is a measure of the luminosity of a celestial object on an inverse logarithmic astronomical magnitude scale. An object's absolute magnitude is defined to be equal to the apparent magnitude that the object would have if it were viewed from a distance of exactly 10 parsecs (32.6 light-years), without extinction (or dimming) of its light due to absorption by interstellar matter and cosmic dust. By hypothetically placing all objects at a standard reference distance from the observer, their luminosities can be directly compared among each other on a magnitude scale. As with all astronomical magnitudes, the absolute magnitude can be specified for different wavelength ranges corresponding to specified filter bands or passbands; for stars a commonly quoted absolute magnitude is the absolute visual magnitude, which uses the visual (V) band of the spectrum (in the UBV photometric system). Absolute magnitudes are denoted by a capital M, with a subscript representing the filter band used for measurement, such as MV for absolute magnitude in the V band. The more luminous an object, the smaller the numerical value of its absolute magnitude. A difference of 5 magnitudes between the absolute magnitudes of two objects corresponds to a ratio of 100 in their luminosities, and a difference of n magnitudes in absolute magnitude corresponds to a luminosity ratio of 100n/5. For example, a star of absolute magnitude MV = 3.0 would be 100 times as luminous as a star of absolute magnitude MV = 8.0 as measured in the V filter band. The Sun has absolute magnitude MV = +4.83. Highly luminous objects can have negative absolute magnitudes: for example, the Milky Way galaxy has an absolute B magnitude of about −20.8.An object's absolute bolometric magnitude (Mbol) represents its total luminosity over all wavelengths, rather than in a single filter band, as expressed on a logarithmic magnitude scale. To convert from an absolute magnitude in a specific filter band to absolute bolometric magnitude, a bolometric correction (BC) is applied.For Solar System bodies that shine in reflected light, a different definition of absolute magnitude (H) is used, based on a standard reference distance of one astronomical unit.

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1. Intrinsic brightness

   Astronomers use the term intrinsic brightness to refer to how bright a star would be without the effects of distance or absorption due to interstellar dust or gas. While a bright distant star's apparent brightness might be less than a nearby dim star, due to the inverse square law for brightness, astronomers can discuss its intrinsic brightness meaning how bright the stars would be at a common distance.

How to pronounce intrinsic brightness?

1. Alex

   US English

   David

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   Mark

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   Daniel

   British

   Libby

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   Mia

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   Karen

   Australian

   Hayley

   Australian

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   Indian

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   South African

How to say intrinsic brightness in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of intrinsic brightness in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of intrinsic brightness in Pythagorean Numerology is: 2

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Intrinsic_Brightness
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Intrinsic_Brightness
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=intrinsic brightness