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Life & fun · March 22, 2021

8Planets

A simple viewer for planetary orbits in our Solar System

8Planets launched on March 22, 2021 with 66 votes, #964 of 3,696 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 5 years on.

What it does

8Planets helps you discover how the planets aligned and move around over time so that you feel the scale of the Solar System. 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.

A simple viewer for planetary orbits in the Solar System.

8Planets is a lightweight viewer and simulator for Solar System orbits. See how planets align and drift through time, from past configurations to future paths, on Mac, iPhone, iPad, and Apple Watch. From timeline scrubbing to wrist-friendly views, everything is designed to keep the Solar System clear and interactive on every Apple device. Adjust the timeline to watch planets sweep their orbits and understand relative speeds at a glance. Jump backward or forward to preview the Solar System and planet positions on any date you choose. Keep a live Solar System on your iOS Home Screen or in macOS Notification Center. Use your wrist to browse the Solar System and spin the Digital Crown to move…from 8planets.app

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