radial velocity

British  

noun

1. the component of the velocity of an object, esp a celestial body, directed along a line from the observer to the object

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Example Sentences

These variations can imitate the subtle radial velocity signals astronomers look for, sometimes making it difficult to determine whether a planet is truly present.

From Science Daily

One of the four sub-Earth exoplanets discovered is the least massive world ever found using the radial velocity technique.

From Space Scoop

For the most recent study, the researchers joined TTV data with a radial velocity analysis of the star.

From Science Daily

This “radial velocity” technique has already been used to detect dozens of exoplanets with hundreds more awaiting confirmation.

From Science Magazine

Researchers made this estimation using the aforementioned radial velocity technique.

From Salon