Data API
The solar observation data can be used by other pages and programs as JSON (default) or CSV (&format=csv).
All requests are read-only and return published observations only.
| Request | Description |
|---|---|
?q=latest | Latest observation and its sunspot groups |
?q=month&yil=2024&ay=5 | Daily observations of a month + monthly mean |
?q=groups&yil=2024&ay=5 | All sunspot groups of a month (class, coordinates) |
?q=daily&from=2025-01-01&to=2025-12-31 | Daily R, g, f for a date range |
?q=monthly&from=2007 | Monthly mean and 13-month smoothed R |
?q=schedule&yil=2026&ay=10 | Observer duty schedule |
?q=drawings&yil=1955 | Links to the photosphere drawings of a year |
?q=videos | Coronado and H-alpha animations (one year with &yil=) |
?q=halpha&yil=2026 | H-alpha frames (scaled for the sharpest look), per day, sharpest first (&son=1: newest day only) |
?q=images&tarih=2026-10-21 | All images of a day: photosphere, H-alpha frames, animations |
?q=observers | Observers and their observation day counts (last_year: last 365 days) |
Example (JavaScript)
fetch('/sun_new/api/index.php?q=latest')
.then(r => r.json())
.then(j => console.log(j.data.date, 'R =', j.data.r));