The characteristics of some constellations

1.hydra: the nine-headed water snake in Greek mythology. If you cut off one, another will grow. He was finally killed by Hercules. Epsilon is a four-star system. There are three messier objects. (messier objects is a comet object of class 1 10, including galaxies, nebulae, star clusters, star clusters and supernova explosion remains. )

2. Virgin: astoria, the goddess of justice in Greek mythology. It has the brightest and closest supercluster-Virgo Cluster. Contains hundreds of galaxies that can be discovered with an 8-inch telescope. There are 1 1 in messier objects, all of which are galaxies. Virgo α is a blue-and-white star with+1, and it is one of the brightest 20 stars in the sky. It is called Kajupiter in China. M 104 is also called the straw hat galaxy. One of the zodiac signs.

3. Ursae Majoris: In Greek mythology, Caristo, a beautiful fairy who was envied by Hera. Zeus turned her into a bear to protect her. This constellation has the most famous astrology in the whole day-the Big Dipper. There are seven messier objects. ζ Ursa major, the sixth star of the Big Dipper, is also a binary star. It was discovered by 1650. It is the earliest binary star discovered in the era of telescope, and it is called Kaiyang in China.

Ceti: The sea monster sent by Poseidon to punish the Ethiopian Queen was killed by the hero Poerxiusi. Contains hundreds of galaxies. There is a more complicated object.

5. Hercules: Hercules, a Greek mythical hero, followed Jason and Argo in their expedition to capture golden fleece and completed the "Twelve Difficult Tasks of Hercules". He is the grandson of Poerxiusi and the illegitimate son of Zeus. There are two in messier objects, among which M 13 is the largest, brightest and most striking globular cluster north of the equator, and only Omega Centauri, 47 Rhododendron and M22 located in the southern sky surpass it.

6.Eridani: All ancient civilizations regarded it as a river in the center of the living area. There is a first-class star called Eridani, which is a big blue-and-white star with a magnitude of +0.5, and it is called the No.1 River Commission in China. There are many binary stars.

7. Pegasi: It transformed from Medusa's neck cavity into blood and landed on Mount Herikon, creating a spiritual spring and becoming the source of inspiration for poetry. The trapezium of Pegasus is the brightest star in the northern sky in autumn, and there is a messier objects. Stephen quintuple galaxy is in its range, including five famous galaxies and a darker member-NGC 7320c.

8. Dragon God: In Greek mythology, it is a dragon hidden in a golden apple orchard and killed by Hercules, the hero of Hercules.

9. Centauri: It has two first-class stars, Alpha Centauri and Beta Centauri, among which Alpha Centauri is a triad star and Beta Centauri is a blue-and-white giant star.

10. Aquarius: Ganymetis, the most beautiful prince in the world, was chosen by Zeus to pour wine for the gods of heaven. One of the zodiac signs.

1 1. Ophiuchus: In Greek mythology, Asclepius is a famous Ophiuchus, holding two snakes, one of which is fatal and the other can cure diseases. He can bring the dead back to life, so he angered Hadders, the keeper of the underworld, and was granted death by Zeus. With an eight-inch telescope, we can see that it has at least 20 globular clusters, including 7 messier objects, including the darkest globular cluster in messier -M 107. Among them, Barnard himself is the fastest star. The zodiac has been excluded from the ecliptic since ancient times because it occupies a small area of the ecliptic.

12. Leonis: There are many galaxies in the vast sky it occupies. Among the meteor swarms that appear every year, the Leo meteor swarm is the most striking one. Leo α is a big blue and white star with a magnitude of+1.35, which is called Xuanyuan XIV in China. One of the zodiac signs.

13. butis: a hunter who keeps chasing the constellation Ursa major with the constellation Canis. One of the brightest stars in the sky to the north of the equator, Capricorn α, is called arcturus in China, with a magnitude of -0. 1 etc.

14. Pisces: In Greek mythology, Pisces represents the incarnation of eros and Aphrodite in the water. In order to avoid monsters, they turned into fish and dived into the Euphrates River. There is also a messier objects M74, which is also one of the darkest messier objects. One of the zodiac signs.

15. sagitar ii: this is a very spectacular constellation, and the heart of the milky way is in it. The main celestial bodies in the depths of the universe in this constellation are all celestial bodies in the Milky Way, including emission nebulae and dark nebulae, open clusters and globular clusters, and planetary nebulae. It is also the largest number of messier objects in all constellations, with fifteen * *. M8 is a bright emission nebula, also known as reef cream nebula, which also contains an open cluster, namely NGC 6530. M 17 is one of the brightest emission nebulae in the sky, also known as Swan Nebula or Omega Nebula. M20, also known as trifid nebula, is a mixed emission and reflection nebula with a dazzling triad nebula in the center. M22 is one of the best globular clusters in the sky. M24 is also called Sagittarius Nebula. One of the zodiac signs.

16. Cygnus: One of the earliest 48 constellations determined by Ptolemy. In Greek mythology, Zeus and Leda, the queen of Sparta, became swans, which the ancient Arabs thought were flying eagles. Cygnus alpha is one of the brightest stars in the Milky Way. It emits 60,000 times as much light as the sun, and its magnitude is+1.25. It is called Tianjin IV in China. There are two messier objects.

17.Tauri: In Greek mythology, it is a snow-white bull turned by Zeus and madly loves Princess Phoenicia. Alpha Taurus is a red giant, known as Bi Su Wu in China, and is one of the four stars of Persian royal family. Bi cluster is the closest open cluster to the solar system. It has two messier objects, among which M 1, also known as the Crab Nebula, is the remnant of a supernova explosion, and it is the only such celestial body in messier objects. It broke out on July 4th, 2054/kloc-0. People in China observed this phenomenon and left a record of "guest star". M45, also known as Pleiades or Seven Sisters cluster, is the most famous open cluster in the sky. One of the zodiac signs.