What is finding a constellation _ What does it mean to find a constellation?

1, Aries (March 21-April 20)

Aries is the first sign of the zodiac, located in the southwest of Taurus and east of Pisces. Every year from June 5438 to mid-February at 8: 00, Aries is above our heads. The four stars Pegasus and Andromeda in the autumn sky make up a big box. Draw a straight line from the two stars in the north of the box and extend it to the east for one and a half times, and you can see Aries. The two brightest stars are the two horns of Aries.

2. Taurus (April 21-May 20)

The most famous celestial body in Taurus is "two clusters plus a nebula". Connecting Orion γ star and Cebu star, extending about twice the distance to the northwest, there is a famous open cluster-Pleiades cluster. People with good eyesight can see seven bright stars in this cluster, so it was also called "Seven Star Cluster" in ancient China. The Pleiades cluster is 450 light-years away and its radius is 13 light-years. Observed with a large telescope, it can be found that there are more than 280 stars in the Pleiades cluster.

3. Gemini (May 2 1- June 2 1)

To the west of Gemini is Taurus, and to the east is relatively dim Cancer. Auriga and the very humble Tmall are located in the north, while unicorns and Canis canis are located in the south. Gemini has two very bright stars-Beihe III and Beihe II. Other stars are dark, and only γ can be seen under city lights, but in places far away from light pollution, slender galaxies can be seen passing through the west of Gemini.

4. Cancer (June 22-July 22)

Cancer (Latin: Cancer) is one of the twelve constellations. Near the triangle star in the center of Cancer, people with good eyesight can see a small white fog, which was called "corpse gas" in ancient China. The book describes it like this: "Like a cloud Feiyun, like a star is not a star, just seeing the air." It was not until the invention of astronomical telescope that people observed that it was a cluster, which was called "ghost cluster" in astronomy. This cluster has more than 200 members and is 520 light years away.

5. Leo (July 23rd to August 22nd)

There are three galaxies, M65 and M66, and the lateral spiral galaxy NGC 3628 near the star θ of Leo. Although NGC 3628 is the largest in the photo, it is actually not as bright as the other two galaxies, and it is difficult to observe with a small telescope. Leo is located between Virgo and Cancer, with Ursa major and Leo minor in the north and Ophiuchus, sextant and Grand Duke in the south. Leo is located near the North Pole of the Milky Way in Ursa Major, so you can see a large number of extragalactic galaxies.

6. Virgo (August 23rd to September 22nd)

Virgo (Latin: Virgo) is the largest zodiac sign, with an area of 65,438+0,294.43 square degrees, accounting for 3.365,438+08% of the whole day. Among the 88 constellations in the whole day, the area ranks second, second only to Ophiuchus. Virgo lies between Leo and Libra. There are Capricorn, Houfa and Serpent in the north, and Serpent, Raven and Dawei in the south. Virgo's most prominent star is Capricorn, which is a blue and white star and one of the brightest 2 1 stars in the whole day.

7. Libra (September 23rd ~ 65438+1October 23rd)

Libra (Latin: Libra) is one of the zodiac signs and one of the Ptolemaic constellations. Located between Virgo and Scorpio, this constellation has more than a dozen galaxies that can be seen with 8-inch or larger telescopes. The four brightest stars in the constellation, α, β, γ and σ form a quadrilateral, and β and the spring triangle form a big diamond. Libra beta, whose middle name is "zubeneschamali", is the only star with green visible to the naked eye all day.

8. Scorpio (65438+1October 24th ~165438+1October 2nd1)

Scorpio (Latin: Scorpio) is one of the twelve constellations located in the southern hemisphere, with an area of 496.78 square degrees, accounting for 1.204% of the whole day, ranking 33rd among the 88 constellations in the whole day. On the night of June 3rd every year, the Scorpio Center falls from the sky. There are 62 stars in Scorpio with brightness greater than 5.5. The brightest star is Antares (Scorpio α), and the apparent magnitude is 0.96, which is the fifteenth brightest star in the whole day.

9. Sagittarius (165438+1October 22nd ~ 65438+February 2nd1)

Sagittarius (Latin: Sagittarius), also known as Sagittarius, is a constellation in the southern sky in the zodiac, with an area of 867.43 square degrees, accounting for 2. 103% of the total area of the whole day, ranking 15 among the 88 constellations in the whole day. Sagittarius is not difficult to identify because its main star is arranged like a teapot. In Sagittarius, the Milky Way reaches its maximum brightness and width, and the center of the Milky Way is located near the radio source Sagittarius A*.

10, Capricorn (65438+February 22nd ~ 65438+1October 19)

Capricorn (Latin: Capricorn, often misspelled as Capricorn) is one of the zodiac signs, with an area of about 4 13.947 square degrees, accounting for about 1.003% of the whole day area, ranking 40th among the 88 constellations in the whole day. Capricorn has 3 1 stars brighter than 5.5, the brightest star is barrier array 4 (Capricorn δ), and the apparent magnitude is 2.8 1. On the night of August 8 every year, the Capricorn Center falls from the sky.

1 1, Aquarius (65438+1October 20th to February 18)

Aquarius (Latin: Aquarius) is one of the zodiac signs, with an area of 979.85 square degrees, accounting for 2.375% of the whole day, ranking tenth among the 88 constellations in the whole day. In Aquarius, there are 56 stars with brightness greater than 5.5, the brightest star is Xu Suyi, and the apparent magnitude is 2.90. On August 25th every year, the Aquarius Center falls from the sky. Aquarius is also called Aquarius in Japan.

12, Pisces (February19 ~ March 20th)

Pisces (Latin: Pisces) is one of the zodiac signs, with an area of 889.42 square degrees, accounting for 2. 156% of the whole day, ranking 14 among the 88 constellations in the whole day. Pisces crosses the sky on September 27th every year. There are 50 stars in Pisces that are brighter than 5.5, the brightest star is Right Geng Er (Pisces η), and the apparent magnitude is 3.62. Now the vernal equinox is near Thunderbolt 5 (Pisces ω).

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