ASTRONOMER

Source NASA data — no middlemen, no commercial rounding.

Besselian elements from the Five Millennium Canon, Saros series, Stellarium .ssc export and a dedicated technical hub.

One-time payment. No subscription or automatic renewal.

Why eclipses.app for your observation?

01
NASA Besselian elements + full Saros series for 2026/2027/2028.
02
/app/astronomer hub with 6 panels: technical, night, communities, glossary, references, export.
03
Stellarium .ssc export with your observation plan preloaded.
04
Raw CSV at 30 s resolution for your analysis pipelines.

A tour of the tool

Each section solves a field decision: where to be, what to bring and when to act.

/app/astronomer with technical data, night planner and Stellarium export. PRO Astronomy and Pass only.

Included in this plan

Besselian elements, Saros series and global visibility map. PRO Astronomy and Pass only.

Included in this plan

Download your custom plan in `.ssc` format to open in Stellarium. PRO Astronomy and Pass only.

Included in this plan

Raw eclipse data at 30 s resolution. Available with PRO Photographer, PRO Astronomy and Eclipse Pass.

Included in this plan

Interactive eclipse simulator with real lunar relief and photographic exposure. Available in PRO Photographer, PRO Astronomy and Eclipse Pass.

Included in this plan

Make it printable and share it with your group. Available with PRO.

Included in this plan

Three alternative locations with a better forecast. Available with PRO/Pass.

Included in this plan

Full cloud-cover forecast for eclipse day, including the hour-by-hour outlook toward the sun. Available with PRO.

Included in this plan

Save your places forever and get back to them in one click. From PRO Traveler (5) up to unlimited with the Pass.

Included in this plan

For complete coverage

It includes Traveler, Photographer and Astronomy, unlimited favorites and comparison, relocation suggestions, and beta access.

Access to the technical hub + raw data + Stellarium export. No subscription.