What does radial velocity mean?

Definitions for radial velocity
ra·di·al ve·loc·i·ty

This dictionary definitions page includes all the possible meanings, example usage and translations of the word radial velocity.

Princeton's WordNet

  1. radial velocitynoun

    velocity along the line of sight toward or away from the observer


  1. radial velocitynoun

    motion of a star toward or away from the earth.


  1. Radial velocity

    The radial velocity or line-of-sight velocity, also known as radial speed or range rate, of a target with respect to an observer is the rate of change of the distance or range between the two points. It is equivalent to the vector projection of the target-observer relative velocity onto the relative direction connecting the two points. In astronomy, the point is usually taken to be the observer on Earth, so the radial velocity then denotes the speed with which the object moves away from the Earth (or approaches it, for a negative radial velocity).


  1. radial velocity

    Radial velocity is a measure of the speed and direction at which an object is moving away from or towards an observer, specifically along the line of sight of the observer. It is often used in astronomy to determine the distance and movement of stars or other celestial bodies.


  1. Radial velocity

    Radial velocity is the velocity of an object in the direction of the line of sight. In astronomy, radial velocity most commonly refers to the spectroscopic radial velocity. The spectroscopic radial velocity is the radial component of the velocity of the source at emission and the observer at observation, as determined by spectroscopy. Astrometric radial velocity is the radial velocity as determined by astrometric observations.

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How to pronounce radial velocity?

How to say radial velocity in sign language?


  1. Chaldean Numerology

    The numerical value of radial velocity in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of radial velocity in Pythagorean Numerology is: 3

Examples of radial velocity in a Sentence

  1. Pedro Figueira:

    This achievement is extremely important, it shows that the radial velocity technique has the potential to unveil a population of light planets, like our own, that are expected to be the most abundant in our galaxy and that can potentially host life as we know it.

Translations for radial velocity

From our Multilingual Translation Dictionary

  • रेडियल वेगHindi

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"radial velocity." Definitions.net. STANDS4 LLC, 2024. Web. 17 Jun 2024. <https://www.definitions.net/definition/radial+velocity>.

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