# Definitions for radial velocityra·di·al ve·loc·i·ty

### Princeton's WordNetRate this definition:0.0 / 0 votes

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

### WiktionaryRate this definition:0.0 / 0 votes

motion of a star toward or away from the earth.

### WikipediaRate this definition:0.0 / 0 votes

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).

### ChatGPTRate this definition:0.0 / 0 votes

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.

### WikidataRate this definition:0.0 / 0 votes

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.

### Numerology

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. 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.

• रेडियल वेग

### Translation

#### Find a translation for the radial velocity definition in other languages:

Select another language:

• - Select -
• 简体中文 (Chinese - Simplified)
• Español (Spanish)
• Esperanto (Esperanto)
• 日本語 (Japanese)
• Português (Portuguese)
• Deutsch (German)
• العربية (Arabic)
• Français (French)
• Русский (Russian)
• 한국어 (Korean)
• עברית (Hebrew)
• Gaeilge (Irish)
• Українська (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)

## Citation

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

Style:MLAChicagoAPA

## Are we missing a good definition for radial velocity? Don't keep it to yourself...

Credit »

#### Free, no signup required:

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

#### Free, no signup required:

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

»
A affront
B transpire
C elaborate
D summon