Life & fun · alternatives · 2026
24 alternatives to Moons of Jupiter and Saturn
Predicts the positions of Jupiter's and Saturn's moons.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier. Moons of Jupiter and Saturn launched in 2024; newer entries below may have overtaken it.
- 1JA
2019 · typpo.github.io · its alternatives →
- 2
Atlas of Spacefree▲770Hello 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 →
- 3
24d ago · space.bl2.net · its alternatives →
- 4
- 5
- 6
Moon Locator▲104Locate and predict the Moon's position in AR 🌝
2018 · play.google.com · its alternatives →
- 7
AstroAlert▲113Know exactly when satellites pass above you.
Nov 2025 · astroalert.app · its alternatives →
- 8
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 →
- 9
- 10
- 11AR
2016 · play.google.com · its alternatives →
- 12AR
Sun Locator is an Android app that predicts the Sun and Moon position and interactively displays them
2018 · sunlocator.com · its alternatives →
- 13
Ride On The Facts of Titan Moon
2022 · factsride.com · its alternatives →
- 14
- 15
Spatium▲182Hi there, humans! I'm excited to announce Spatium! I'm a big fan of any topic related to our universe. I'm also a developer, so I've put these things together and I built this new tab Chrome Extension for space lovers, astronomy fans, and science geeks like me. If you enjoyed it, please spread some love <3 FEATURES • Space images • Every day, get a fascinating image of our universe. Enjoy pictures of stars, planets, moons, galaxies, nebulae, comets and more right on your browser tab. • Sun Widget • Find out when the sunrise, sunset, first and last light times will be precisely at your…
2021 · spatium.earth · its alternatives →
- 16
- 17
Explore space. Astronomy guide. Stars and constellations map
2022 · linktr.ee · its alternatives →
- 18
A collection of impls to get the current moon phase - iriswebb/moonphase
2025 · github.com · its alternatives →
- 19
- 20
8Planets▲66A simple viewer for planetary orbits in our Solar System
2021 · 8planets.app · its alternatives →
- 21
uphere.spacefree tier▲112Realtime tracking and prediction for thousands of satellites
2019 · uphere.space · its alternatives →
- 22
moon finder▲161little page that helps you find the moon.
2024 · moonfinder.peng37.com · its alternatives →
- 23
All in one calendar to find the next full moon date
2021 · nextfullmoon.org · its alternatives →
- 24
Also compare
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 →