Re_Atlas

for iPhone, iPad & Mac

A clear day tells you nothing. Re_Atlas plans astrophotography the way the night actually works: it cuts the forecast down to the hours between astronomical dusk and dawn, puts two weather models side by side and scores every dark hour from 0 to 100, with the Moon's phase and altitude counted in. The sky chart draws your own camera — sensor, focal length, angle, mosaic grid — on the real sky, so framing is answered before the mount comes out. Tonight's list ranks about a thousand deep-sky objects, the planets and the Moon on the hours they spend clear of your ridge while the sky is dark, not on catalogue prettiness. The Sun tab follows active regions, X-ray flux and coronal mass ejections; the Peak Analyzer ray-casts the site's real skyline from elevation data, names the summits, computes eclipse contacts over the terrain, and models the light dome sitting on the horizon so you can see which direction the glow comes from. Everything runs on the device — no server, no account, no API key. iOS and iPadOS 17, macOS 14 or later.