21
QuizMultiple Choice

The Solar System — Test

Question 21 • Earth and Space Science

Astronomers in India observed a lunar eclipse during the full moon on July 16. Astronomers in Kenya did not observe a lunar eclipse during the full moon on August 15. Which statement best explains the different observations?

Answer
A
The Moon's orbit around Earth is tilted, so not every full moon is in Earth’s shadow.
B
India and Kenya were looking at different sides of the Moon on different nights.
C
Africa is in Earth’s Southern Hemisphere so lunar eclipses cannot be seen there.
D
Kenya was on the wrong side of Earth to see the Moon during late summer.

Explanation

A lunar eclipse occurs when Earth passes between the Sun and the Moon and the Moon enters Earth’s shadow. Although lunar eclipses happen only at full moon, the Moon’s orbit is tilted relative to Earth’s orbit around the Sun, so most full moons pass above or below Earth’s shadow. That is why the full moon on July 16 could be eclipsed while the one on August 15 was not. The eclipse was not prevented by Kenya’s location or hemisphere.

AI-written and checked against the verified answer.

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