Initializing, please wait a moment

Cara menjelajah Sunspot Activity 3D Explorer

Open the Sunspot Activity 3D Explorer, read the ~11 yr / ~25 d / ~35 d / Maunder 1645-1715 figures, and scrub the cycle year slider while watching spot counts change.

  1. Open https://freetoolonline.com/space-3d/sunspot-cycle.html and wait for the photosphere, latitude belts, and spot groups.
  2. Read the facts panel: Schwabe ~11 yr, equator ~25 d, poles ~35 d, Maunder 1645-1715.
  3. Scrub cycle year from 0 toward 5-6 to see more umbra/penumbra spots at maximum.
  4. Press Play cycle, then Pause cycle, to auto-advance one Schwabe period.
  5. Toggle Maunder Minimum to compare a nearly spot-free era (1645-1715).
Follow four steps: open the Sunspot Cycle explorer, read the facts panel, scrub cycle year toward maximum, then press Play cycle and Pause cycle.
Open explorer, read facts, scrub year, press Play and Pause.

Next: the when guide or vs alternatives. Open the Sunspot Activity 3D Explorer.

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

Why trust these tools

  • Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
  • No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
  • Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
  • Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
  • Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.

Related tools: