What is the constellation in autumn?

The main constellations that dot the southern sky in autumn. Vertically, the end of the month passes through the constellation of meridian circle at 9: 00 this evening, from the zenith (near the top) to the southern horizon (near the bottom).

The big square of Pegasus is the most recognizable symbol of the autumn sky. It appears in the east in early autumn. 65438+1 October19 pm It is the highest point in the southern sky. This big square consists of four second-order stars, each side of which is about 15 degrees. Northeast of the northeast corner of the square is the Andromeda nebula. This is the brightest spiral galaxy far from the Milky Way. As I will talk about later, the naked eye looks like a long fog spot. If we imagine the big square of Pegasus as a spoon bucket, Andromeda, the bright star in the northeast, becomes the handle of the spoon. But the star at the end of the handle is the star of another constellation (Perseus).

Perseus is in the Milky Way. The stars form an arrow and face Cassiopeia. Between these two constellations, we see a cloud-like light spot, which can be divided into two clusters with a small telescope or even a telescope. This is the so-called Perseus double star cluster. There is a row of three stars in the west of the arrow, and the brightest one in the middle is the variable star Algol (Daling V), which is the representative of the altered star.

There are three zodiac signs in the area we are investigating: Aquarius, Pisces and Aries. The vernal equinox at the equator intersection of the ecliptic (where the sun is on March 2 1 day) is almost 1 times longer than the east line of Pegasus Square. Before 2000, the spring equinox was still in the northeast Aries. The main star of Aries becomes an oblate triangle.

To the south of Pisces is the huge whale constellation. This constellation is famous for its red binary star Milla. This star is usually invisible to the naked eye, and can only be seen for 1 ~ 2 months in a year. We have figured out the part of the autumn constellation. Among them, only 1 has the same magnitude. This is Fomalhaut in Discis Austin, which passes through meridian circle at around 9 pm in the middle of 10.