The Doppler radial velocity technique works best for:
A) planets whose orbits are along our line of sight.
B) planets whose orbits are perpendicular to our line of sight.
C) planets whose orbits are nearly circular.
D) planets whose orbits are very eccentric.

Question

Quizplus · Accepted Answer

The Doppler radial velocity technique measures the slight wobble of a star caused by the gravitational pull of an orbiting planet. This wobble causes the star to periodically move towards and away from the observer. The technique is most effective when the planet's orbit is along our line of sight, as this produces the largest radial velocity variation.

The Doppler Radial Velocity Technique Works Best For