Is there a fixed constellation like me?

What does fixed constellation mean? Are they all the same constellation?

There should be many such people, as long as the date and time of birth meet the following conditions:

Born around the first day of the lunar calendar, the moon constellation is the same as the sun constellation.

Born at sunrise in the morning, the rising constellation is the same as the sun constellation.

Born at sunrise in the morning around the first day of the lunar calendar, the sun, the moon and the rising constellation are all the same.