Which of these properties of a nearby star is determined by a measurement of stellar parallax?
A) spectral type and surface temperature
B) rotation period
C) apparent magnitude
D) distance from Earth

Question

Quizplus · Accepted Answer

Stellar parallax is the apparent shift in position of a nearby star against the background of distant objects due to Earth's orbit around the Sun. It is used to directly measure the distance of stars from Earth, not their spectral type, rotation period, or apparent magnitude.

Which of These Properties of a Nearby Star Is Determined