Earth’s axis passes through the and South Poles. It takes Earth hours to rotate once around its axis. Earth revolves once around the Sun in days during a non-leap year.Which sentence supports the fact that we always see the same side of the Moon?
The Moon takes about four weeks to rotate once on its axis and about the same time to orbit the Earth. The gravitational effect of Earth has slowed the rotational period of the Moon to match its orbit. Since the rotational period is exactly the same as the orbital period, the same portion of the Moon always faces Earth. As the Moon orbits Earth, the lit side that we see changes in size. These changes are called the lunar phases.
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the answer is one year or 365.25 days. It is not so simple though as there are a number of definitions of a year. For example,
Tropical year, which is from equinox to equinox, that is from the time the Sun crosses the celestial equator from south to north to the next time 365.24219 days
Sidereal year, from one time a particular star is in a given position to the next time 365.25636 days
Anomalistic year, from the time the Earth is at its closest to the Sun to the next time 365.25964 days.
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