What does luminosity distance mean?

Definitions for luminosity distance
lu·mi·nos·i·ty dis·tance

Here are all the possible meanings and translations of the word luminosity distance.


  1. luminosity distance(Noun)

    An estimate of the distance of a body based on its luminosity and the inverse square law.


  1. Luminosity distance

    Luminosity distance DL is defined in terms of the relationship between the absolute magnitude M and apparent magnitude m of an astronomical object. which gives: where DL is measured in parsecs. For nearby objects the luminosity distance gives a good approximation to the natural notion of distance in Euclidean space. The relation is less clear for distant objects like quasars far beyond the Milky Way since the apparent magnitude is affected by spacetime curvature, redshift, and time dilation. Calculating the relation between the apparent and actual luminosity of an object requires taking all of these factors into account. The object's actual luminosity is determined using the inverse-square law and the proportions of the object's apparent distance and luminosity distance. Another way to express the luminosity distance is through the flux-luminosity relationship. Since, where F is flux, and L is luminosity, or where F is flux, and L is luminosity. From this the luminosity distance can be expressed as: The luminosity distance is related to the "comoving transverse distance" by the Etherington's reciprocity relation: where z is the redshift. is a factor that allows you to calculate the comoving distance between two objects with the same redshift but at different positions of the sky; if the two objects are separated by an angle, the comoving distance between them would be . In a spatially flat universe, the comoving transverse distance is exactly equal to the radial comoving distance, i.e. the comoving distance from ourselves to the object.

How to pronounce luminosity distance?

  1. Alex
    US English

How to say luminosity distance in sign language?

  1. luminositydistance


  1. Chaldean Numerology

    The numerical value of luminosity distance in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of luminosity distance in Pythagorean Numerology is: 7

Images & Illustrations of luminosity distance

  1. luminosity distance


Find a translation for the luminosity distance definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Український (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Discuss these luminosity distance definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Use the citation below to add this definition to your bibliography:


"luminosity distance." Definitions.net. STANDS4 LLC, 2020. Web. 4 Apr. 2020. <https://www.definitions.net/definition/luminosity+distance>.

Are we missing a good definition for luminosity distance? Don't keep it to yourself...

Free, no signup required:

Add to Chrome

Get instant definitions for any word that hits you anywhere on the web!

Free, no signup required:

Add to Firefox

Get instant definitions for any word that hits you anywhere on the web!

Nearby & related entries:

Alternative searches for luminosity distance:

Thanks for your vote! We truly appreciate your support.