✦StellaSoonComing to the App Store

Bring the night sky with you.

Stella reads tonight’s sky, finds you darker ground, and names what’s overhead — your astronomy companion for dark skies, star parties, and celestial discovery.

Coming soon —Join launch list
490+dark-sky places
442+sky stays
10-dayforecast planning

Join the Stella launch list

Email signup is paused while secure double opt-in is completed. Your sky forecast is ready now.

Check tonight’s sky
1Score tonight

See the best window, moonlight, cloud, transparency, and target quality before you leave.

2Pick darker ground

Compare protected places, Bortle class, official listings, and nearby sky stays.

3Carry the plan

Open the field plan on your phone with alerts, widgets, and the observing checklist.

  • Tonight score & best window
  • Bortle dark-sky map & routing
  • Point-and-identify AR + planetarium
  • Live Activities, widgets & alerts

Free to start · Pro & Ultra unlock the full planner

Stella's Tonight screen showing the observing forecast, best window, and planning briefing
QR code linking to the Stella download pageScan to open
on your phone