Legal
Credits & Licenses
Last updated 2026-07-14With thanks#
Stellara is a window onto work done by other people. Every launch time, orbit, image, and catalog entry in this app comes from an agency, an observatory, or an open dataset maintained by someone else — most of it public, most of it free. This page names them.
None of the organisations below endorse Stellara.
Space agencies & missions#
Imagery, mission data, and orbital science provided courtesy of these agencies and used in accordance with their media usage guidelines.
The Astronomy Picture of the Day image and description on the home screen.
The Photos and Videos galleries.
Near-Earth object close-approach data in the Watch tab.
Impact-risk data, including Torino and Palermo scale ratings.
Asteroid and comet orbital elements used to place small bodies in the sky map and Codex.
The exoplanet catalog and search.
Kp index, solar wind, geomagnetic storm levels, and aurora outlook.
NASA Exoplanet Archive acknowledgement#
This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.
Launch, orbit & tracking data#
Live launch schedules and the orbital elements that drive the satellite layer of the sky map.
Launch schedules, providers, missions, astronauts, and webcast listings.
Two-line element sets for satellites and debris in the sky map.
Transmitter frequencies and modes on the Radio passes screen.
Live International Space Station position and telemetry.
Live positions of deep-space spacecraft (Voyager 1 & 2, New Horizons, Parker Solar Probe, JWST, Juno) on the Deep space screen.
Catalogs & reference#
Star and deep-sky data, and the background text shown on object pages.
Star and deep-sky-object catalog data and name resolution. Operated by the Centre de Données astronomiques de Strasbourg, Strasbourg Observatory, France.
Bright-star positions, magnitudes, and names for the AR sky and the Find guide.
Object summaries and background text, edited or excerpted for length. Full attribution and revision history live on each article page.
Imagery, video & textures#
Live streams and the surfaces on the 3D planets.
Space sounds#
Real spacecraft recordings and their sonifications, played from the Codex.
Saturn's radio emissions and Enceladus's plasma hiss (Cassini RPWS), lightning on Jupiter (Voyager PWS), Juno's bow-shock crossing (Juno Waves instrument), Voyager 1's interstellar plasma oscillations (Voyager PWS), and Earth's dawn chorus (Van Allen Probes EMFISIS).
Starquake sonifications from red giants KIC 12268220C and KIC 7671081B.
The recorded patter of comet dust striking Stardust's shielding during its Tempel 1 flyby.
The 'singing comet' — magnetic-field oscillations around 67P/Churyumov–Gerasimenko.
Open-source software#
Stellara is built on open source. We are grateful to the maintainers and contributors of these projects, and to the many transitive dependencies not listed here.
The app framework.
Framework, router, native modules, and build tooling.
3D rendering for the sky map and planet globes.
On-device astronomical position calculations.
SGP4 satellite orbit propagation.
Data fetching and caching.
Animation.
The starfield and 2D graphics.
State management.
Auth, database, realtime, and edge functions.
Capturing share cards to an image.
The share sheet for sharing cards.
Typography#
Stellara sets display type in Space Grotesk and body text in Inter. Both are licensed under the SIL Open Font License 1.1.
Contact#
Think we have credited something incorrectly, or missed you? Tell us and we will fix it: walkerinteractivellc@gmail.com
Questions?
Email walkerinteractivellc@gmail.com and a human will answer.