Question 1693Navigation General

The correct answer is C) stars. Parallax correction is not applied to observations of stars because stars are so distant that their apparent position in the sky does not change significantly due to the observer's position on Earth. This is in contrast to observations of the Sun, Moon, and planets, where parallax effects can be observed and need to be accounted for to accurately determine their positions. The other options are incorrect because parallax corrections are applied to observations of the Sun, Moon, and planets, but not to observations of stars.