Question

For what can we use the doppler effect to deduce in astronomy

A. the shape of orbital path of an object
B. whether the object is traveling toward or away from us
C. the Chemical composition of the objects
D. the type of spectrum the object emits​

Answer 1

b whether the object is traveling toward or away from us

Step-by-step explanation:

i just got the answer right on the test

Answer 2

B

Step-by-step explanation:

Whether the object is travelling toward or away from us for PLATO.