Spectroscopic Parallax Refers to

Multiple Choice

Spectroscopic parallax refers to

A) using a star's position on the H-R diagram to infer its distance.
B) using a star's spectrum to measure its radial velocity.
C) using a star's Doppler shift to infer its distance.
D) using Earth's motion to measure a star's apparent "wobble" to infer its distance.
E) measuring a star's physical "wobble" in the sky to determine its mass.