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→Radial velocity
=== Radial velocity ===
=== Radial velocity ===
Instead of mapping the position of the star against the background, it is also possible to detect the minute [[Doppler shift]] in the star's spectrum as it is tugged by the planet. This method is responsible for the majority of extrasolar planet detection.
Instead of mapping the position of the star against the background, it is also possible to detect the minute [[Doppler effect|Doppler shift]] in the star's spectrum as it is tugged by the planet. This method is responsible for the majority of extrasolar planet detection.
=== Transit method ===
=== Transit method ===