價格：免費
檔案大小：21.5 MB
版本需求：需要 iOS 10.2 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Learn about orbital elements by interacting with this simulation of the inner solar system. Includes accurate modeling of the orientation, shape, and size of the orbits as well as the speed of the planets as they go through different parts of their elliptical orbits. Functionality for changing the orbital elements and additional bug fixes will be added soon.
支援平台：iPhone, iPad