How will the phases of the moon change in the second half of the month, and the changes in the phase

If you understand the change in the phases of the moon in the first half of the month, then it is not difficult to understand the second half of the moon because the second half of the moon is a continuation of the first half of the month.

Moonrise time: For the second half of the moon in the middle and low latitudes, the moon rises from the easterly horizon after 18:00, and the rising time is delayed every day, until about 12:00 midnight at the end of the month.

2. Lifting and landing position:

Throughout the second half of the month, the moon rises over the eastern horizon; As the sun rises, the moon moves farther and farther to the east. (Because as the date is postponed, the moon rises later and later, and the moon stays in the night sky for less and less).

3. Moon phases: The moon phase in the second half of the moon is bright and facing east (the sun is in the east of the moon, and the east side of the moon is illuminated), and as the date is delayed, the bright side becomes smaller and smaller, and it is almost completely invisible at the end of the month.

4. In general, the apparent position of the Moon and the Sun becomes closer and closer from its maximum.

Upstairs was nice, contemptible pointed out some minor flaws.

Imagine when the moon rises on the 26th day of the lunar calendar, and can you see it at 1 a.m.?

It is suggested that the sentence should be changed to read "The moon is always below the horizon after sunset and above the horizon before sunrise".

2。"The moonset position moves eastward as the date progresses."

I am afraid that this sentence is somewhat different from the facts, the direction in which a celestial body falls is only related to its declination and the position of the observation point, and the direction in which a celestial body falls is only related to its declination when observed at the same location. Moreover, the direction in which the celestial bodies fall will only move north-south, so will they move east? I know what upstairs meant, and suggest you change this sentence to "The moon is positioned farther and farther east as the sun rises."

3。"The apparent position with the sun is getting closer and closer from the maximum. ”

Such a premise does not consider the intersection of yellow and white, and it is recommended to add a premise "in general".

In addition, in the high latitudes of the Northern Hemisphere, when the moon declination is positive, the moon can be seen rising almost due north, and it is recommended to change "the moon in the second half of the moon rises from the eastern horizon after 18:00" to "for the middle and low latitudes, the moon in the second half of the moon rises from the easterly horizon after 18:00".

I don't know how to look upstairs, of course, the flaws are not hidden, it is still very exciting, and I still have to top it in the end.

The moon phase change of the lunar half moon is that the first half of the lunar month is missing to the full, and the second half of the lunar month is from round to missing.

1. About the 30th day of the lunar month or the first day of the lunar month in Fengzhou, the moon is located between the sun and the earth. The moon is not visible on Earth, called the new moon or new moon. Its apparent shape is shown in position a in Figure 1. This phase of the moon is moonrise in the morning and moonset at dusk, and can only be detected during a solar eclipse.

2. Around the third and fourth day of the lunar month, the moon leaves the middle of the earth and the sun and deviates to the side, that is, the moon is located on the east side of the sun. Some of them can be seen on the earth in the shape of a sickle, convex facing the moon facing the sun to the west, which is called the crescent moon. This phase of the moon rises after sunrise and sets after sunset, and can only be seen in the western sky some time after the sun sets.

Moon phase change:

The moon moves a large distance from east to west in the starry sky every day, and the different shapes are presented, that is, the moon phase changes, which we call the moon phase. As the relative positions of the Sun, Moon, and Earth change, the Moon takes on different shapes on different dates, which is the cyclical change of the moon phase.

On the first day of the lunar calendar, the moon phase is called the new moon or new moon, and the yellow longitude difference between the sun and the moon is 0 degrees; From the second day to the sixth day of the lunar calendar, the moon phase is called Shang'e Mei Moon, and the yellow longitude difference between the sun and the moon is 0 to 90 degrees; From the seventh to the eighth day of the lunar calendar, the moon phase is called the first quarter moon, and the yellow longitude difference between the sun and the moon is 90 degrees; From the tenth to the fourteenth day of the lunar calendar, the moon phase is called the waxing gibbous moon, and the yellow longitude difference between the sun and the moon is 90 to 180 degrees; On the fifteenth day of the lunar calendar, the moon phase is called Wangwang or full moon, and the difference between the sun and moon and the yellow longitude is 180 degrees.

What is the law of moon phase change in the second half of the month is introduced as follows:

The first half of the lunar calendar is missing to the round, and the second half of the month is missing from the round to the short. The change in the phase of the moon is related to the fact that the moon does not emit light, it is related to the sun's irradiation, and it is related to the moon's orbit around the earth. The phases of the moon are cyclical, and its replacement cycle is days, which is about one month.

The order is: New Moon - Moth Eyebrow Moon - First Quarter Moon - Gibbous Moon - Full Moon - Gibbous Moon - Last Quarter Moon - Waning Moon.

How to identify the phases of the moon in China:

When the Moon orbits between the Sun and the Earth, and the hemisphere illuminated by the Sun is facing away from the Earth, the Moon cannot be seen from the Earth, and this day is called the "New Moon" or "New Year", which is the first day of the lunar calendar.

After the new moon, with the rotation of the moon, you can see a trace of silver hook like a land-shaped moon on the earth, appearing on the west side of the sky of Nianxiao, with its back bowed to the west, called "Momei Moon", which is the beginning of the lunar calendar.

Three, four. <>

to the beginning of the lunar calendar. On July and August, you can see half of the moon, with the convex side facing west, which is called the "first quarter moon".

From the ninth to the fourteenth day of the lunar calendar, you can see most of the moon in the morning, which is called the "gibbous moon".

Lunar. Ten. Five, ten.

On the sixth and seventeenth, you can see a full moon, which is called a "full moon" or "hope".

to the lunar calendar. Two.

Ten. 2. 23, and only half a moon can be seen, convex facing east, called the "last quarter moon".

After a few days, it will become a moth-eyebrow-shaped crescent moon with its arched back facing east, which is called the "waning moon".

When the Moon moves between the Sun and the Earth again, it starts again and repeats. The whole process of a moon phase change is a "synodic month", about a day, and the length of a lunar month is determined according to the "synodic month".

The moon phase is calculated by the difference between the sun and the moon and the yellow longitude (the following degrees are the difference between the sun and the moon and the yellow longitude), and there are eight types:

New moon (the first day of the lunar calendar, i.e., the first day of the lunar calendar): 0 degrees;

Shangemei month (generally around the second night of the lunar calendar --- about the seventh day of the lunar calendar): 0 degrees --- 90 degrees;

First quarter moon (around the eighth day of the lunar calendar): 90 degrees;

Gibbous Moon (around the 9th lunar month --- 14th lunar month): 90 degrees--- 180 degrees;

Full moon (looking at the sun, around the night of the 15th or 16th day of the lunar calendar): 180 degrees;

waning moon (around the 16th lunar --- 23rd lunar calendar): 180 degrees--- 270 degrees;

Last quarter moon (around the 23rd lunar month): 270 degrees;

Xia Emei month (around the twenty-fourth lunar month --- the end of the month): 270 degrees--- 360 degrees;

In addition, the last day of the lunar month is called the obscure day, that is, the moon is not visible;

There are four main moon phases above: Xinxiao Qingyue (the first day of the lunar calendar), the first quarter (around the eighth day of the first lunar month), the full moon (around the 15th day of the lunar calendar), and the second quarter (around the 23rd day of the lunar calendar), all of which have a clear time of occurrence and are calculated by precise orbits;

Summary. Based on your question, make the following answers:

New Moon (the first day of each month).

Emei Moon (Lunar Calendar.

Three, four. The first quarter moon (around the eighth day of the lunar calendar.

Gibbous Moon (around the 9th day of the lunar calendar --- around the 14th day of the lunar calendar).

Full moon (looking at the sun, around the night of the 15th or 16th day of the lunar calendar).

Gibbous Moon (around the sixteenth lunar --- twenty-third lunar month).

The last quarter moon (around the twenty-third day of the lunar calendar).

The moon of Emei (the twentieth day of the lunar calendar.

1. 2) New Moon (the first day of each month).

<> how the phases of the moon change over the course of a month.

According to your question, make the following answers: New Moon (the first day of the first month of each month), Emei Moon (the third day of the lunar calendar, the fourth first quarter of the moon) (around the eighth day of the lunar calendar, the gibbous moon (around the ninth day of the lunar calendar--- the fourteenth day of the lunar calendar, the right of the left and the right of the lunar calendar), the full moon (looking at the sun, the late cracking of the lunar calendar around the fifteenth day and night or the sixteenth day), the gibbous moon (around the sixteenth lunar month--- the twenty-third day of the lunar calendar), the second quarter moon (around the twenty-third lunar month), the Emei moon (the twenty-third day of the lunar calendar).

1. 2) New Moon (the first day of each month).

The order in which the phases of the moon change is: New Moon – Rolling Crescent – First Quarter Moon – Gibbous Moon – Full Moon – Gibbous Moon – Lower Quarter Moon – Rolling Crescent Moon.

1. New moon. Around the 30th day of the lunar month or the first day of the lunar month, the Moon is located between the Sun and the Earth. People on Earth happen to see the side of the Moon away from the Sun, so they can't see the Moon on Earth, which is called a new moon or new moon.

This phase of the moon rises and sets with the sun, and its presence is only noticeable during a solar eclipse.

2, Emei Yue.

After the new moon, the Moon orbits the Earth in an eastward direction, causing the Moon to move away from the middle of the Earth and the Sun and to the east. The half moon illuminated by the Sun faces west, and a sickle-shaped part of it can be seen on Earth, called the crescent moon.

The moon rises after sunrise, and the moon sets after sunset, and the sun is in the sky, in the bright sky, so the moon phase cannot be seen. Only when the sun sets some time after and the crescent moon can be seen in the western sky.

3. The first quarter moon.

Around the beginning of the lunar month.

On the eighth day of the seventh lunar month, the Moon continues to orbit the Earth to the east, and the Moon-Earth connection is 90 degrees from the Sun-Earth. Observers on Earth happen to see that the moon is bright in the western half of the moon, and it is called the first quarter moon in a semicircle. Assuming the observer is in the mid-latitudes of the Northern Hemisphere, the first quarter moon rises at about noon, and at dusk, it appears in the sky due south, and at midnight it sets from the west below the horizon.

ps: The full moon side of the first quarter faces west).

4. Gibbous moon. About every month in the lunar calendar.

Ten. 1. 12. An observer on Earth sees that more than half of the west side of the moon is illuminated by the sun, that is, the gibbous moon. The gibbous moon rises after noon, is in the southeastern sky at dusk, the moon faces west, and then continues westward, setting over the western horizon before dawn, and is visible for most of the night.

5. Full moon. Lunar monthly.

Ten. 5. 16. The Moon orbits to the outer side of the Earth, that is, the Sun and the Moon are located on both sides of the Earth. Because the white surface has an angle with the ecliptic, normally, the earth cannot block the sunlight, and the bright side of the moon is all facing the earth, which is called a full moon or hope.

6. The last quarter moon.

Lunar monthly. Two.

Ten. 2. 23, the relative position between the Sun, the Earth, and the Moon again becomes a right angle, and the Moon is 90 degrees west of the Sun-Earth line. At this time, we see that the eastern half of the moon is bright and semicircular, and the moon faces east, which is called the last quarter moon.

It rises over the eastern horizon at midnight, hangs high in the southern sky at dawn and sunrise, sets over the western horizon at noon, and is visible in the second half of the night.