# How much does the Moon change per day?

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## How much does the Moon change per day?

The moon’s orbit carries it around Earth’s sky once a month, because the moon takes about a month to orbit Earth. So the moon moves – with respect to the fixed stars – by about 12 to 13 degrees each day.

### How many minutes later will the Moon rise each day compared to the previous day?

This movement is from the Moon’s orbit, which takes 27 days, 7 hours and 43 minutes to go full circle. It causes the Moon to move 12–13 degrees east every day. This shift means Earth has to rotate a little longer to bring the Moon into view, which is why moonrise is about 50 minutes later each day.

Does the Moon rise the same time every night?

The Moon also doesn’t rise at the same time each night. Due to the speed of Earth’s rotation and the Moon’s orbit, the Moon rises about 50 minutes later each day. Interestingly, all these changes in relative position to the Sun make the Moon appear to go through its waxing and waning phases.

Why does the Moon rise at a different time every day for the same location on Earth?

The Moon is continually moving on ahead in its orbit while the Earth rotates. Because the Moon has moved 13 degrees or so since its last moonrise, it’s going to take another hour or so for the Earth to catch back up to the Moon’s new location, delaying the Moon’s rising above your horizons by ~50 minutes each day.

## Why does moonrise vary so much?

Our satellite’s orbital speed is not constant, which helps explain why moonrise varies as much as an hour from night to night. But the angle at which the Moon’s orbit (tilted 5° to Earth’s orbit around the Sun) intercepts the eastern horizon varies considerably during any given month.

### Why is the Moon in a different place tonight?

The answer is that the moon is moving. So the moon’s motion has two parts to it. It looks like it’s moving around the earth once per day along with everything else, but in addition to that it is actually moving around the earth once per month. That is what makes it move to a different place on the sky.

How do you calculate moonrise time?

Finding Moonrise Times

1. Moonrise (and, incidentally, the time of high tide) occurs about 50 minutes later each day than the day before.
2. To determine the time of moonrise for each day of the month, just add 50 minutes for each day after a phase or subtract 50 minutes for each day prior to a new phase.

Why does the moonrise and set at different times of the day?

## Why does the Moon rise at different times each day?

The Moon rises on an average 50 minutes later each day in Earth’s skies due to the difference in Earth’s rotation and Moon’s revolution. Moon completes one orbit around Earth in 28 days, moving 13º every day. Hence, the Earth has to rotate an extra 13º every day after completing one rotation for the Moon to be visible.

### How do the times of moonrise and moonset compare for the full moon and new moon?

Moonrise and moonset times correspond directly to the phase of the moon. Since a new moon will be overhead at noon, it will therefore rise around 6 a.m. and set around 6 p.m.

Why does the moonrise time vary at different latitudes?

Latitude also changes the numbers significantly because it alters the angle at which the lunar orbit meets the eastern horizon. In Nov­ember 2015, the moonrise delay ranges from 42 to 58 minutes at 30° north and from 30 to 63 minutes at 50° north.

How does the phase of the moon affect the time of day?

Now lets get to the Moon. The time of day that the Moon rises or sets depends on its phase. This should be obvious when you remember that the phase of the Moon depends on the relative positions of the Sun, Moon and Earth.

## When does the Moon Rise and set with the Sun?

So when the Moon is new, it rises and sets with the Sun, and the position of Moonrise/set varies just like that of Sunrise/set. When the Moon is full however the pattern is inverted.

### How often does the Moon orbit the Earth?

The Moon orbits our home planet once every 28 days or so, and as it orbits our planet, the angle between the Sun, the Earth and the Moon changes. If we think about looking down on the solar system from above, the Earth spins like a top below us. On a slower cadence the Moon drifts in a wide ellipse around the Earth.