Variable Star Phase Screensaver
The Variable Star Phase screensaver shows real catalogue data for famous variable stars from AAVSO's key-less VSX API — type, period and epoch — used to compute where each star sits in its own brightness cycle right now. It's free, runs in your browser, and ESC exits.
How the Variable Star Phase screensaver works
The saver reads AAVSO VSX directly in your browser — no key and no account.
Real catalogue data for famous variable stars from AAVSO's key-less VSX API — type, period and epoch — used to compute where each star sits in its own brightness cycle right now..
It refreshes on a schedule, so what you see stays current.
Colours and the accent can be changed in settings; nothing is stored beyond your own browser.
A worked example
Real catalogue data for famous variable stars from AAVSO's key-less VSX API — type, period and epoch — used to compute where each star sits in its own brightness cycle right now.
Settings & tips
- Accent and Background recolour the display.
- Data comes straight from AAVSO VSX in your browser.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from AAVSO VSX and is refreshed on a schedule.
- Is a key needed?
- No. This source is fully key-less.
- Does it need an internet connection?
- Yes — it reads a live source, so it needs a connection to update.
- Is it free?
- Yes — free, no download, in your browser.