【實用教育app】Orrery|最夯免費app-綠色工廠好玩App

Experience our solar system and visit its planets with this digital 3D orrery.Just sit back and orbit the planets or even land on some of them while listening to soothing background music…Features:- Smooth camera navigation- Realistic planet radii (gas giants are proportionally downscaled) - Realistic orbital speeds- Explorable surfaces: Mercury, Venus, Moon, Mars- Wikipedia excerpts- Speed slider- Date input- Autopilot mode- Ambient music (optional)- Optional asteroid fields- Optional trails- Optional lens flare- Quality option- Portrait- and landscape support- Localized for english and german