التفاصيل البيبلوغرافية
| العنوان: |
Iapetus (moon). |
| المؤلفون: |
Fisher, C. Alton Hassell and David G. |
| المصدر: |
Salem Press Encyclopedia of Science, 2023. 3p. |
| مصطلحات موضوعية: |
Cassini, Giovanni Domenico, 1625-1712, Satellites of Saturn |
| مصطلحات جغرافية: |
Iapetus (Satellite) |
| مستخلص: |
Iapetus was first noticed on one side of Saturn by Giovanni Domenico Cassini in October 1671. Searching for it later on the other side of the planet was futile with the telescope that he was using. He tracked it many times over several years, but only when he had a better telescope in 1705 did Cassini finally see Iapetus on the other side of the planet. He concluded that Iapetus had a dark side and a bright side. It was named for the Titan god Iapetus, a brother of Cronus (the Greek name for the Roman god Saturn) in Greek mythology. Iapetus was originally called Saturn V because the Saturnian satellites were originally numbered, and many scientists continued to use the numbers. With the discovery of other Saturnian satellites, Iapetus’s scientific referent changed to Saturn VII and eventually Saturn VIII. Except for its dark region, Iapetus's geological features are named after characters and places from the epic French poem The Song of Roland. The dark region is called Cassini Regio, in honor of Iapetus’s discoverer, Cassini. |
| قاعدة البيانات: |
Research Starters |
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لا يتم عرض النص الكامل للضيوف. |
تسجيل الدخول للوصول الكامل.
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