Solar System Viewer vs Three

8Planets is a simple viewer and simulator for planetary orbits in our Solar System. 8Planets helps you discover how the planets aligned and move around over time so that you feel the scale of the Solar System or even the Universe. By giving you quick and easy access to the Solar System everywhere, 8Planets will make you feel that the Solar System is close to us. FEATURES ・Planetary Motion Speed up or slow down time to see how the planets rotate over time and grasp the scale of the Solar System. ・Time Travel Travel back or forward in time to view the Solar System or planetary positions on any given date. ・Widgets Widgets allow you to display the real-time Solar System on your Home Screen. ・Watch View the Solar System on your wrist and use Digital Crown to travel back or forward in time. ・Others Apple Watch Complications, Overview of the planets, Option to show Pluto, Sharing your favorite moment of the Solar System, URL Scheme, and more.

1. For a batter observation, all volumes are enlarged by many times (the range of gravity in the real universe is much larger, and the planet is much smaller, so don’t worry about breaking the Roche limit) 2. Users can add up to 7 Sun, and randomly distribute them to nearby spaces. 3. Users can add an asteroid matrix. Asteroids have no gravity (negligibly small in the reality) and are only affected by Suns. (Well, in fact, it is afraid that the cpu is limited, and it is impossible to calculate the mutual gravitational force of too many stars.) 4. The three-body system is very unstable, and it is prone to gravitational slingshot effect. If a star is too far away from other stars, it may never come back. 5. However, users can also turn on an additional r/10 parameter to increase the gravitational force of stars at a long distance and make it return to the system (after turning on the parameter, it can only be used for demonstration, and the data has no reference value).