What is the name of the moon at five o'clock in the morning?

The moon at five o'clock in the morning is called the morning moon.

Moon phase, astronomical term. (Phase of the moon) is the name in astronomy for the part of the moon seen from the earth that is illuminated by the sun. As the moon moves a large distance from east to west in the starry sky every day, its shape is constantly changing. This is the phase change of the moon, called the moon phase.

Definition of moon phases

People have joys and sorrows, and the moon waxes and wanes. The waxing and waning here refers to the "moon phase changes": the moon seen on the earth is changed by sunlight. Different images of illuminated parts.

The moon phase refers to the name in astronomy for the part of the moon seen on the earth that is illuminated by the sun. The moon moves around the earth, causing the relative positions of the sun, earth, and moon to change regularly throughout the month. Because the moon itself does not emit light and is opaque, the visible bright parts of the moon are the parts that reflect sunlight.

Only the part of the moon directly illuminated by the sun can reflect sunlight. We see the part of the moon directly illuminated by the sun from different angles, which is the source of the moon phases. The moon phase is not caused by the earth covering the sun (this is a lunar eclipse), but because we can only see the part of the moon that is illuminated by the sun and glows, and the shadow part is the dark side of the moon itself.