Why is the moon in the sky with the sun 10

That's when the sun catches up with the moon, or the moon is lazy.

The moon is actually there all the time, but most of the time, because the sun is too bright to see.

The sun rises in the east and sets in the west every day, because the earth rotates from west to east every day.

The moon also rises in the east and sets in the west, which, like the rise and fall of the sun, is also caused by the rotation of the earth.

At the same time, the moon also orbits the earth once a month, and we can not only see the shape of the moon on the earth different every day, but also the moon travels a long way from west to east in the sky every day.

Because of this, the sun and moon do not rise and set together every day.

Sometimes when the sun rises, the moon has not yet set, so we see the sun come out, but the moon is still in the sky; There are also many times when the sun has set, but the moon is not visible, and it takes some time for the moon to rise in the east.

It is a very common natural phenomenon that the sun and moon always appear at the same time. It's just that sometimes the sun is strong on sunny days, and we can't see the moon, but we can see it when it's almost dark.

The moon appears in the sky because the moon reflects the sun's rays to the earth, so that the earth's water quickly digs into the moon's surface where the plane is facing the moon. The moon and the sun appear at the same time because the sun and the moon are on the same side of the earth at the same time, so that the moon is seen by you because it reflects the sun's light, and the sun is scattered and you are seen at the same time.

The Sun is a star located at the center of the solar system, and it is almost an ideal sphere intertwined with a hot plasma and a coarse magnetic field.

The Moon, commonly known as the Moon and the Taiyin in ancient times, is a satellite that orbits the Earth. It is a solid-state satellite of the Earth and the closest celestial body to the Earth.

The sun and moon shine together is just a natural phenomenon, and that moon is called the first quarter moon. The first quarter moon generally appears in the evening from the 5th to the 11th day of the lunar calendar, during which the moon we see is directly in the western sky as soon as it gets dark, and it is a waning moon, and the moon faces west. In the second half of the night, it sets in the west The second quarter moon generally occurs in the early morning of the 18th to the 27th of the lunar calendar, at sunrise.

And it is this first quarter moon that you see in the afternoon. Because we know that the moon rises in the east and sets in the west, and it can't go up to the west in the first half of the night, it's actually over the horizon during the day, but then the sun is so strong that the moon's rays are buried, and we can't see it, just like we can't see the stars during the day. And when the sun goes down, we will be able to see it, and it will move to the west.

And on your day, it happened to be a good day, with few clouds in the sky and a little weaker sunlight, just in time to spot the moon. I'm guessing that the moon at that time was certainly not that bright, but just a pale white moon. On the seventh day of the lunar calendar, the moon is 90 degrees west of the sun, and the moon will appear in the southern sky when the sun is about to set On the 15th day of the lunar calendar, the moon is opposite the sun, and the moon has just risen when the sun sets On the 23rd day of the lunar calendar, the moon is at 90 degrees east of the sun, and the moon appears in the southern sky when the sun has just risen.

The phenomenon of the sun and moon shining together requires the sun and moon to be above the horizon at the same time. Theoretically, such a phenomenon may occur except for the 15th day of the lunar calendar. But the second condition is that the extreme magnitude of the sky (the faintest objects that can be seen) cannot be too low, so in general, the brightness of the sky is easy to meet when the sun is rising or setting (even in cities).

Therefore, in the first half of the lunar month (after the fourth day of the lunar calendar), the moon phase can be seen when the sun sets, from the west to the east, and in the second half of the lunar month (before the twenty-seventh), the moon can also be seen after the sun rises, and from the western sky to the eastern sky in turn.