Is that bright star Jupiter or Venus in winter night?

When winter comes and summer goes, the stars move. This shows that with the change of seasons, the starry sky in the four seasons is also changing. Because the relative positions of the earth and the sun are constantly changing during the movement of the earth around the sun, the astrology seen at the same night in a year is different in different seasons. Now let's take Beijing (40 degrees north latitude) as an example to see the starry sky in four seasons.

The main constellations in the sky in spring are Ursa major, Ursa minor, Leo, Capricorn, Canis major, Virgo and Ursa major.

In the direction slightly northeast of the zenith, you can see the connection between the Big Dipper and Doukou, pointing to Polaris. At this time, bucket handle points to the east, so there is a cloud: bucket handle points to the east, and the world is spring; Bucket handle points to the north, and the world is summer; Bucket handle points to the west, and the world is autumn; The handle of the barrel points to the south, and the world is winter.

And along the direction of bucket handle, you can find a bright star, namely arcturus in Capricorn, and then you can reach the main star of Virgo, Cape. Near Ursa major, you can find a small constellation called Canis major. In this small constellation, there is a spiral nebula, M5 1, which is a famous extragalactic galaxy.

Virgo is regarded as the god in charge of agriculture. It is a four-star crow's nest, located in the southwest of its main star, Bumblebee. Below the crow's nest is the tail of Ophiuchus, which spans half the sky from east to west and is one of the largest constellations in the whole day.

The head of the long snake is the famous Leo in the northeast. It is the brightest center of the starry sky on a spring night. The main star of Leo, whose Chinese name is Xuanyuan XIV, is the first-class star on the ecliptic. Sometimes when a bright planet approaches, it is very beautiful.

Summer is a good time to see the stars. Look west after dark, and you will find Leo. To the east of Leo is Virgo.

In the south of the sky, there is a bright red star shining in the starry sky below. It is the main star of Scorpio and a bright star on the ecliptic. The obvious feature of Scorpio is that there are three stars scattered in an arc at equal intervals, and Antares is just at the center of the circle. In ancient astronomy in China, Scorpio belongs to the commercial star and Orion belongs to the ginseng star. It just rises and falls and never meets, so a poet said, "It is almost as difficult for friends to meet each other as the stars in the morning and evening."

To the east of Scorpio is Sagittarius, and in the eastern half of Sagittarius, there are six stars called Nandou.

In the starry sky around Scorpio and Sagittarius, there is a white band of light, which is the Milky Way. Looking northeast along the Milky Way, you can see Vega and Altair, with two small stars on the left and right. The bright star that forms a triangle with these two bright stars is Tianjin IV, which forms a cross with other stars in Cygnus and is easy to identify.

At this time, the Big Dipper is in the northwest sky. After finding the constellation Capricorn, to the east, almost to the zenith, there is a semicircle constellation called Beiguan, just like a jewel-encrusted crown, where a large number of galaxies gather.

The starry sky in autumn night is clear and transparent, and it is also a good opportunity to see the stars.

On the southwest horizon, Sagittarius has been hanging there obliquely. The ancient book says that "the big dipper declines in the south, and the stars move" refers to this. There are cowherd and weaver girl whispering in the western sky, and Tianjin IV is also making light bulbs there.

However, there is only one lonely bright star in the south, and two bright stars have risen in the northeast corner: Capella (the main star of Auriga) and Bisuwu (the main star of Taurus).

There are many princes and nobles in the autumn night sky: fairy king, fairy queen, fairy, fairy, flying horse and whale.

East of the zenith is Pegasus. Andromeda is a linear constellation in the northeast of Pegasus. To the north of Andromeda is the W-shaped Cassiopeia. To the west of Cassiopeia is Cepheus and to the east is Perseus.

The Great Lingwu in Perseus is a famous solar eclipse variable, and there is a long-period variable called Zenger in Cetacea.

Between Perseus and Cassiopeia, there is a pair of Perseus clusters. Andromeda has a famous big galaxy: Andromeda Nebula, which is much larger than the Milky Way and the nearest galaxy in the northern half of the day.

Although it is very cold in winter, the starry sky is extremely magnificent.

Orion is the center of the winter sky.

At the latitude of Xiamen, you can see three bright stars arranged neatly after dark, which is said by the people to be "three stars shining high". There are four bright stars around Samsung that form a rectangle with Samsung. This is Orion. Samsung is Orion's belt.

If you want to extend the three-star line to the lower left, you will meet the brightest star in the whole day: Sirius, which is the main star of Canis Canis.

Extending from Samsung to the upper right is the bright red star Bi Su Wu. Next to it is Capella.

Taurus is Gemini in the southeast, Cancer in the east and lion head in the east.

To the southwest of Orion is the long and big but very dim constellation Bojiang. The main star Shuiwei No.1 can't be seen until Guangdong.

South of Orion are rabbits and pigeons. South is the main star of carina.

Below Orion's Samsung, there is a bright spot, which is the Orion Nebula. Next to the leftmost part of Samsung is the Horsehead Nebula. The Pleiades cluster in Taurus is an excellent open cluster, consisting of about 500 stars.

There are fifteen bright stars.

Also pay attention to planets. Planets are bright and have no stable position, while stars have relatively stable positions.