Suppose you know the declination of a bright star that is now crossing your meridian.What else must you measure in order to determine your latitude?
A)the star's altitude
B)the apparent solar time
C)the current universal time
D)the star's right ascension

Question

Quizplus · Accepted Answer

In order to determine your latitude, you need to measure the altitude of the star above the horizon. The declination of the star simply tells you how far north or south it is from the celestial equator, but it doesn't give you any information about its altitude. Therefore, you need to measure the altitude of the star (i.e. its angle above the horizon) in order to use trigonometry to determine your latitude. The other choices (B, C, and D) are not relevant to determining your latitude based on the declination of a star.

Suppose You Know the Declination of a Bright Star That