Kallisto (English spelling)

Japanese: カリスト（英語表記）Kallisto

A nymph in Greek mythology. She lived in Arcadia and followed Artemis, spending her days hunting as a virgin. However, Zeus approached her in the guise of Artemis, defiled her chastity, and she became pregnant. This caused the virgin goddess Artemis to become angry and turn her into a female bear. Her son, Arcas, grew up to be the king of a region named after himself, but one day while hunting in the mountains he encountered a female bear named Callisto and tried to shoot her, not realizing that she was his mother. To prevent Zeus from committing the crime of matricide, he turned Arcas into a bear as well, and raised both mother and child up into the sky, making Callisto the Great Bear and Arcas the Little Bear.

Callisto
Callisto

Jupiter IV is the fourth moon of Jupiter. It was discovered in 1610 and is one of the four major Galilean moons. It has a visual magnitude of 6, a diameter of about 4,890 km, and an orbital period of about 16.7 days. In 1979, Voyager 1 and 2 took photographs of its surface, revealing not only the meteorite crater but also a large ring structure similar to the basins of Mercury.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

ギリシア神話のニンフ。アルカディアに住み，アルテミスに従って，処女のまま狩猟に日をおくっていたが，アルテミスの姿をかりて彼女に近づいたゼウスによって貞操をけがされ，妊娠したために，処女女神アルテミスの怒りに触れて雌ぐまに姿を変えられてしまった。彼女から生れた息子アルカスは，成長して彼の名にちなみアルカディアと命名された地方の王となったが，ある日，山中で狩りをしているときに雌ぐまのカリストと出会い，母と知らずにこれを射殺しようとしたので，ゼウスは母殺しの罪が犯されるのを防ぐため，アルカスもくまに変え，母子をともに天に上げて，カリストを大熊座，アルカスを小熊座にしたという。