Which of the following cannot be determined from the spectrum of a star?
A) chemical composition
B) surface temperature
C) radial (along line of sight)velocity
D) tangential (perpendicular to line of sight)velocity
E) Both c and d

Question

Quizplus · Accepted Answer

The spectrum of a star can determine its chemical composition, surface temperature, and radial velocity through Doppler shifts. However, tangential velocity requires proper motion measurements, not spectral analysis.

Which of the Following Cannot Be Determined from the Spectrum