Which of these can the Doppler effect be used to deduce in astronomy?
A. the shape of the orbital path of an object
B. whether the object is traveling toward or away from us.
C. the chemical composition of the object
D. the type of spectrum the object emits

Respuesta :

Answer:

D. the type of spectrum the object emits

Explanation:

Astronomers analyze the shift of spectral patterns of the light emitted or absorbed by those objects.