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.

Question

Quizplus · Accepted Answer

Spectroscopic parallax involves determining a star's absolute magnitude from its spectral type and position on the H-R diagram, then comparing it to its apparent magnitude to calculate its distance.

Spectroscopic Parallax Refers to