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Basically, yes. A full lunar cycle is 29 1/2 days; changes are gradual.

Basically, yes. A full lunar cycle is 29 1/2 days; changes are gradual.

Basically, yes. A full lunar cycle is 29 1/2 days; changes are gradual.

Basically, yes. A full lunar cycle is 29 1/2 days; changes are gradual.

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15y ago

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How many full moons are there in a month?

How many full moons per month? Usually, one, but it is possible to have two, as there are 13 lunar months and 12 calendar months in a year. When do full moons occur? The moon revolves around the earth roughly once each month. (Moonth). When the moon is on the opposite side of the earth from the sun, it catches the full sunlight, making it look big and round. When the sun and moon are on the same side of the earth, all we see in the lunar night side. This is called the "new" moon. Half moons result when the earth is at roughly right angles to the moon and sun.


Do star astronomers make stellar observation during the full moon part of the month or during the new moon?

it is 90% full.


Do you have the highest tide in a full moon or a last quarter moon?

The highest tides usually occur during a full moon and new moon, when the gravitational pull of the sun and moon are aligned, causing greater tidal forces. Last quarter moons typically have lower high tides due to the moon being at a right angle to the sun and Earth.


Since the earth's shadow creates the crescent moon why does the moon not look like a crescent after 7 days?

Your assumption is not correct. The crescent moon has nothing to do with the shadow of the earth falling upon the moon. The moon being obscured by earth's shadow is a relatively rare event, and it is known as a lunar eclipse. Furthermore, during a lunar eclipse the passing earth shadow does not show as a sharp edge on the moon's surface. The crescent moon shapes that you typically observe over the course of a month are a result of the fact that earth's view of the moon is changing, and as our view changes, we see more of the lit surface of the moon or less, depending on where we are in the month. The moon orbits the earth once every month in its west-to-east orbit. During the same time, the earth is spinning on its axis west-to-east once every 24 hours. This is why the sun, moon and stars all appear to rise in the east. During our nighttimes, we watch the moon slowly progress from lunar noontime (at the time of the full moon, for an observer at the center of the moon's face) to lunar midnight (at the time of the new moon when the view of the moon is obscured by the brightness of the sun) and back to lunar noon at the next full moon. We can sometimes observe the very fine first crescent of the moon shortly after the time of the new moon, after sunset. The moon's orbit around the earth is not in the same plane as the earth's orbit around the sun. This means that the earth's shadow never touches the moon during most months. Now and then, and only at the time of the full moon, the earth's shadow will pass over some or all of the full moon during what is called a lunar eclipse. These eclipses last for a few hours at most.


Where did the phrase man on the moon come from?

The phrase "man on the moon" originated during the Space Race of the 1960s, specifically in reference to the goal of landing a human on the moon. It gained popularity during the Apollo program, leading to the successful Moon landing by NASA's Apollo 11 mission in 1969.