Which of these distance-measuring techniques works for the farthest objects?
A) Parallax
B) Supernovae Ia
C) Tully-Fisher
D) Cepheid variables

Question

Quizplus · Accepted Answer

Supernovae Ia are the most useful in measuring the distances to the farthest objects because they can be seen at very large distances and have a known intrinsic brightness. This allows for accurate distance measurements even for objects billions of light-years away. The other options, such as parallax, Tully-Fisher, and Cepheid variables, are useful for measuring distances to closer objects within our own galaxy or nearby galaxies.

Which of These Distance-Measuring Techniques Works for the Farthest Objects