Draco was established by Claudius Ptolemy. It is constellation that can be seen in the northern sky almost all year round and never sinks below the horizon. There are various theories about Draco, one of which is that it was a fire-breathing dragon that guarded a golden apple tree in the garden of the three Hesperides sisters at the western end of the world. According to legend, the apples were stolen when the dragon accidentally fell asleep, but it was rewarded for watching over the tree for so long by being made into constellation. [Sources of the story] Encyclopedia of the Complete constellation, New Edition, Kawade Shobo Shinsha Co., Ltd. (February 2011) First Guide to constellation, Seibundo Shinkosha Co., Ltd. (July 2001) constellation Astronomical Observation Picture Book, Seibidoshuppan (2002)

Sagittarius was created by Claudius Ptolemy. It is one of the 88 constellation and one of ecliptic twelve constellation. It is constellation based on the image of a centaur, with the upper body of a human and the lower body of a horse. According to legend Sagittarius, is said to be a wise man named Chiron who educated the heroes of Greek mythology. Chiron, who was a little different from his fellow centaurs, who were all violent, was born to his father Cronus and his mother Philyra, a nymph. However, it is said that because Cronus went to meet Philyra in the form of a horse, he was born with the upper body of a human and the lower body of a horse. [Source of the story] Encyclopedia of the Complete constellation Constellations, New Edition, Kawade Shobo Shinsha Co., Ltd. (February 2011) First Guide to constellation Constellations, Seibundo Shinkosha Co., Ltd. (July 2001) constellation and Astronomical Observation Guide, Seibido Shuppan (2002)

Lyra was established by Claudius Ptolemy. It has an area of 286 square degrees and 70 stars that can be seen with the naked eye. It is one of the 48 Claudius Ptolemy constellation. It is easy to find because the bright first magnitude star Vega shines near the zenith all summer. According to legends such as "Metamorphoses" and "Katastelismoi", the myth of Lyra is written as follows. Soon after his birth, Hermes, the messenger god, stole the entire herd of cows of the sun god Apollo. He ate two of the cows from the herd and hid the rest, when a sea turtle came by and made a lyre from its shell. He then got into an argument with Apollo, who is also the god of music, who came to get the cow back, and Hermes played the lyre and asked Apollo to forgive him, saying that he would give in. Apollo agreed because the sound of the lyre was the most beautiful he had ever heard. This led to Hermes and Apollo becoming friends, and Apollo gave Hermes the "Caduceus", a messenger staff. This seven-stringed lyre was later given to Orpheus, the son of the Muses Calliope and a musician. After Orpheus' death, it is said that the lyre was raised to the heavens and became constellation. [Source of the story] Encyclopedia of the Cultural History of Stars, Hakusuisha Publishing Co., Ltd. (December 2019) Encyclopedia of constellation of the Sky, Kawade Shobo Shinsha (February 2011)

Corona Borealis is one of the 48 constellation established by Claudius Ptolemy. Its area is 179 square degrees and it has 35 stars that can be seen with the naked eye. It is not a bright constellation, as it only has one second-magnitude star, but it does have some features that make it easy to notice. According to the legend in Ovid's "Metamorphoses," Dionysus, the god of wine, comforted Ariadne, the Cretan princess who was saddened by her abandonment by Theseus, and threw her crown into the sky. Also, in Hyginus' "Poetic Astronomy," it is said that the crown was placed in the sky at the wedding of Ariadne and the local fertility god Liber. [Sources of the story] Encyclopedia of the Cultural History of Stars, Hakusuisha Publishing Co., Ltd. (December 2019) Encyclopedia of constellation, Kawade Shobo Shinsha (February 2011)

Aquila was established by Claudius Ptolemy. Its area is 652 square degrees and it has 116 stars that can be seen with the naked eye. It is one of the 48 Claudius Ptolemy constellation, and is also known as Aquila in Mesopotamia. There is a theory that it is the form of the great god Zeus who transformed into an eagle to kidnap the Trojan boy Ganymede. Zeus was also carried by an eagle several times during his childhood, and the eagle is also considered to be Zeus' symbol. Although a boy is depicted in constellation picture of Aquila, it was originally a different constellation called Antinous. It is said that the Roman emperor Hadrian made it into constellation in the 2nd century after his lover, the boy Antinous, drowned. [Source of the story] Encyclopedia of the Cultural History of Stars, Hakusuisha Co., Ltd. (December 2019) Encyclopedia of the Complete Sky constellation, Kawade Shobo Shinsha (February 2011)

The Scorpius was set by Claudius Ptolemy. Along with the Orion in the middle of winter, it is a popular constellation as the most well-shaped and beautiful constellation. There are various theories, but as a tradition, the goddess Hera releases a scorpion to punish Orion, who was scolded. Then the scorpion points to Orion's feet, and Orion dies instantly. In recognition of his achievements, Scorpion became constellation. Since Orion and Scorpius cannot be seen at the same time, Orion is said to be climbing as constellation during the Scorpius in order to escape from the scorpion.