Free dashboard serving live NASA SDO solar imagery across 12 wavelengths, offline moon phases via Jean Meeus algorithms, and real-time NASA DONKI space weather data.
Key Takeaways
12 NASA SDO/AIA wavelengths updated every ~15 minutes reveal the Sun from its 5,000 K surface to 10-million-degree flare plasma.
Moon phases calculated offline using Jean Meeus’s Astronomical Algorithms, accurate to minutes, covering 200+ cities with no GPS or data transmission.
Space weather pulled live from NASA DONKI: solar flares rated B/C/M/X, CMEs up to 3,000 km/s, geomagnetic storms on the G1-G5 scale.
No accounts, no ads, no tracking; city selection is a local list pick stored only on-device, never transmitted.
Solo indie build (Beeswax Pat, U.S. Army veteran, no funding); Android live now, iOS submitted to Apple Review April 27.
Hacker News Comment Review
The biggest technical flag: the site hotlinks 30MB 2K-resolution video files directly from NASA SVS servers, which is a fragile dependency and a real load-time risk at scale.
Multiple commenters noted the UI lacks in-app explanations for the 12 solar wavelengths, requiring users to leave the page to understand what they are seeing – a clear content gap given the educational angle.
The solar timelapse sparked an astronomical thread: one commenter questioned whether the apparent daily rotation exceeded the expected 1/365th of the Sun’s diameter, pointing at differential rotation as a possible explanation.
Notable Comments
@ebbi: asks whether a live moon phase API is available for embedding in other apps; the app computes phases offline with no public endpoint exposed.
