Life & fun · alternatives · 2026
24 alternatives to 8Planets
A simple viewer for planetary orbits in our Solar System
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 8Planets launched in 2021; newer entries below may have overtaken it.
- 1AOAtlas of Space▲770
Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…
2025 · atlasof.space · its alternatives →
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AstraPixels▲267A pixel-art solar system at its real current positions.
Aug 2026 · astrapixels.com · its alternatives →
- 4
Hey HN! I made Orbit, an iOS app that allows you to see the satellites, planets, and constellations above you in AR, on a 2D map, and on a 3D globe. The app includes more than 15,000 objects tracked by CelesTrack, together with their pass predictions, descriptions, and detailed orbital data. A searchable catalog of all objects is also available, as well as a built-in chatbot designed to answer any space-related questions you might have. This is my first published iOS app, so any feedback is greatly appreciated! App Store: https://apps.apple.com/app/id6772174570
Jul 2026 · nagylukas.github.io · its alternatives →
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- 11AAAstro App▲291
I really like Stellarium and SkySafari but I felt like these are primarily geared towards exploring the sky but not so much "here are the long list of things I want to see, when can I see them tonight and where". There's also not really a great option I've found that combines sky object planning + location weather details while still being free so I built this. The UI's heavily inspired by NINAs sky atlas + Robinhood. Right now you can: View the altitude chart of objects and 3D view Create lists of objects of interest View the annual max/min daily altitude of an object to find the best…
2024 · astro.sshh.io · its alternatives →
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AstroAlert▲113Know exactly when satellites pass above you.
Nov 2025 · astroalert.app · its alternatives →
- 13GI
Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…
Jun 2026 · qunabu.github.io · its alternatives →
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I made this little walkthrough for finding the visible planets tonight and a meteor shower shooting start counter. Plus a little model of the solar system to try to wrap my head around what's going on. It's all based on your location if you provide it. lifesprites.com/solar.html doesn't require account creation. The rest does. It's free, but you need an account.
29d ago · lifesprites.com · its alternatives →
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Live NASA solar imagery in 12 wavelengths, the moon phase tonight for 200+ cities, and real space weather. Free on iOS and Android. No ads, no signup.
Apr 2026 · lumara-space.app · its alternatives →
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3D movements telling you the time to the next sunrise
2024 · its alternatives →
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A compass that shows landmarks, sunrise/sunset + golden hour
Jan 2026 · apps.apple.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →