The radial velocity method for finding exoplanets

This animation shows how astronomers use very precise spectrographs to find exoplanets. As the planet orbits its gravitational pull causes the parent star to move back and forth. This tiny radial motion shifts the observed spectrum of the star by a correspondingly small amount because of the Doppler shift. With super-sensitive spectrographs the shifts can be measured and used to infer details of a planet’s mass and orbit.

Crediti:

ESO/L. Calçada

A proposito del video

Identificazione:eso1035g
Data di pubblicazione:Martedì 01 Ottobre 2024 14:00
Notizie relative:eso2414, eso1035
Durata:26 s
Frame rate:30 fps

A proposito delll'oggetto

Tipo:Milky Way : Star : Circumstellar Material : Planetary System
Categoria:Exoplanets
Stars

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