What is the date of Andromeda?

Andromeda is one of the 88 constellations in the whole day, located below Ursa Major and near Pegasus. There is no specific date.

The Andromeda Nebula has a total magnitude of 4 and an average brightness of 6 per unit area. On a clear moonless night, it is faintly visible to the naked eye, like a blossoming little white cloud, and its soft silver oval shape can be seen through a small astronomical telescope. Andromeda nebula is a typical spiral galaxy, but because it faces us sideways, it is not easy to see its spiral arms.

Through a larger telescope, we can see some of its structures, for example, its core is particularly bright, and the brighter it gets toward the center, we can also see some spiral arms, black dust lines, globular clusters and star clouds. In addition, we can also see its two dwarf companion stars. A small, round and dense elliptical galaxy M32 is in the south of the core of M3 1, and another elliptical galaxy M11is in the northwest of M3 1.

Constellation myth

Andromeda is the daughter of Cassiopeia, the fairy queen in Greek mythology. The fairy's head is Cedius, a corner of the Pegasus quadrangle. Andromeda is one of the 88 constellations in the whole day, located below Ursa Major and near Pegasus. Andromeda is famous for the Andromeda galaxy M3 1. M3 1 is about 2 million light years away, and it is the farthest celestial body visible to the naked eye.

In Greek mythology, Andlau Moda was the daughter of Ethiopian King Capes and Queen Cassiopeia. His mother offended Poseidon's wife, Haixing, because she often showed off her beauty and Haixing wanted Poseidon to avenge her. Poseidon sent whales to ravage Ethiopia. Kepos was terrible. He asked the Oracle. The Oracle revealed that the only way to save was to provide Andromeda.