Observed arrival · 2026-09-07
rotating.earth, the night-sky detective
A privacy-minded astronomy tool that plate-solves night-sky photos and overlays the stars, planets, constellations, and coordinate grid.
Field notes
The solver uses EXIF location, timestamp, and lens information as a rough starting point, then matches the star pattern and models wide-angle curvature before drawing the result in the browser. The page specifically targets handheld, noisy phone frames and says a straight-line projection can drift by around a degree across a 70-degree field. Uploads are described as deleted after solving, while coordinates remain attached to the solve rather than to a name.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue