Two Centuries Of Spots Screensaver
The Two Centuries Of Spots screensaver shows sILSO's daily total sunspot number, gathered key-less by the pipeline. It's free, runs in your browser, and ESC exits.
How the Two Centuries Of Spots screensaver works
The saver reads the source described above and draws it on a canvas — no account, no tracking.
SILSO's daily total sunspot number, gathered key-less by the pipeline. The record runs back to 1818; this shows about one solar cycle. Days nobody observed are dropped rather than drawn as zero, which would invent a lull that never happened.
It refreshes on a schedule, so what you see stays current.
Colours and any options can be changed in settings; nothing is stored beyond your own browser.
A worked example
SILSO's daily total sunspot number, gathered key-less by the pipeline. The record runs back to 1818; this shows about one solar cycle. Days nobody observed are dropped rather than drawn as zero, which would invent a lull that never happened.
Settings & tips
- Accent and Background recolour the display.
- Every value on screen comes from the live source — nothing is simulated.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from the source named on this page and is refreshed on a schedule.
- Is a key needed?
- No. This source is fully key-less.
- Is it free?
- Yes, and it runs entirely in your browser.