When observed at greatest eastern elongation (see Figure 4-6 of Universe, 11th ed.) , Venus is about 45° from the Sun. How long after sunset does Venus set on the western horizon?

Question

When observed at greatest eastern elongation (see Figure 4-6 of Universe, 11th ed.), Venus is about 45° from the Sun. How long after sunset does Venus set on the western horizon?
​
 ​

Quizplus · Accepted Answer

When Venus is at greatest eastern elongation, it is visible for several hours after sunset. Since it is approximately 45° from the Sun, it will set about 3 hours after sunset.

When Observed at Greatest Eastern Elongation (See Figure 4-6 of Universe