When did the first quarter moon, the convex moon, the full moon, the waning moon, the last quarter moon, the waning moon and the new moon appear? (Gregorian calendar)

The time when the phases of the moon appear cannot be calculated by the Gregorian calendar, because the lunar calendar mainly refers to the calendar arranged according to the phases of the moon in astronomy.

If the moon revolves around the earth for one week (taking the sun as a reference, the actual moon runs for more than one week) as January, that is, the first month of the lunar calendar is used as the basis for determining the calendar month, and the moon phases are as follows:

1, first quarter moon: the seventh day of the seventh lunar month-the eighth day.

2. The rising and protruding moon: the thirteenth day of the lunar calendar?

3, gradually losing the convex moon: Lunar New Year's Day

4. Full moon: the fifteenth day of the lunar calendar.

5. The waning moon: the 28th day of the lunar calendar.

6. First quarter moon: Lunar calendar 22-23?

7. Canyue: the fifth day of the fifth lunar month.

8. New Moon: the first day of the lunar calendar.

Extended data:

"People have joys and sorrows, and the moon has a full moon." The full moon and the full moon here refer to the "phase change of the moon": different images of the moon illuminated by sunlight seen on the earth.

The moon revolves around the earth, so the relative positions of the sun, the earth and the moon change regularly within a month. Because the moon itself is not luminous and opaque, the visible part of the moon is the part that reflects sunlight.

Only the part of the moon that is directly illuminated by the sun can reflect sunlight. We see the part of the moon that is directly illuminated by the sun from different angles, which is the source of the moon phase.

The moon phase is not caused by the earth covering the sun (this is an eclipse), but because we can only see the part of the moon illuminated by the sun, and its shadow part is the dark side of the moon itself.

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