What is Andromeda?

Andromeda is one of the 88 modern constellations in the world and one of the 48 constellations listed by Ptolemy, a Greek and Roman astronomer in the 2nd century. The main star of Andromeda, M3 1 (Andromeda galaxy), is located north of the celestial equator and is one of the largest members of this galaxy group.

In Greek mythology, Andlau Meda symbolizes Andlau Meda, a goddess locked on a rock and waiting for the sea monster Ceto to devour. Andromeda is the easiest to watch in the autumn night in the northern hemisphere, and there are also constellations symbolizing other gods in Perseus mythology. Andromeda is located below Ursa major, near Pegasus.

The fairy's head is Cedius, a corner of the Pegasus quadrangle. Andromeda, because of its northern declination, can only be seen in the area north of the 40-degree south latitude line, and the area south of 40-degree south latitude will be below the horizon.

Andromeda is one of the largest constellations in the celestial sphere.

The area is 722 square degrees, which is 1400 times of the full moon, 55% of the largest Ophiuchus, and more than ten times of the smallest Southern Cross.

Andromeda galaxy, a huge spiral galaxy located in Andromeda, has an apparent magnitude of 3. 5 and so on, visible to the naked eye. Is a close neighbor of our galaxy. The apparent magnitude is 3. 5 and so on. Visible to the naked eye, like a faint oval spot. Astronomers discovered it a long time ago, and messier numbered it August 3rd, 1764.