Yes. Helioviewer is free and does not ask you to register or hand over an email address before you can use it.

How long does Helioviewer take?

Five to fifteen minutes of proper attention. We file it under "Coffee break" — the Sun in every wavelength, going back fifteen years.

Does Helioviewer work on a phone?

Helioviewer really wants a mouse and a wide window. It will load on a phone, but the experience is built for desktop.

Cosmos & Scale

Helioviewer

The Sun in every wavelength, going back fifteen years

Visit helioviewer.org More Cosmos & Scale

helioviewer.org

Coffee break · Best on desktop

Free, no sign-up · online since 2009

What Helioviewer actually is

Helioviewer pulls imagery from SDO, SOHO and other solar observatories, letting you stack wavelengths, scrub through time and export the result as a video. Flares, filaments and coronal mass ejections are catalogued as events you can jump straight to.

Why it is worth your time

Building a film of one specific flare out of raw observatory frames takes about four clicks, and the loop you get back is the footage the science teams work from.

Common questions

Is Helioviewer free?: Yes. Helioviewer is free and does not ask you to register or hand over an email address before you can use it.
How long does Helioviewer take?: Five to fifteen minutes of proper attention. We file it under "Coffee break" — the Sun in every wavelength, going back fifteen years.
Does Helioviewer work on a phone?: Helioviewer really wants a mouse and a wide window. It will load on a phone, but the experience is built for desktop.
What kind of site is Helioviewer?: We list it under Cosmos & Scale — zoom out until you feel small. Building a film of one specific flare out of raw observatory frames takes about four clicks, and the loop you get back is the footage the science teams work from.

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Cosmos & Scale

Helioviewer

The Sun in every wavelength, going back fifteen years

Visit helioviewer.org More Cosmos & Scale

helioviewer.org

Coffee break · Best on desktop

Free, no sign-up · online since 2009

What Helioviewer actually is

Why it is worth your time

Building a film of one specific flare out of raw observatory frames takes about four clicks, and the loop you get back is the footage the science teams work from.

Common questions

Is Helioviewer free?: Yes. Helioviewer is free and does not ask you to register or hand over an email address before you can use it.
How long does Helioviewer take?: Five to fifteen minutes of proper attention. We file it under "Coffee break" — the Sun in every wavelength, going back fifteen years.
Does Helioviewer work on a phone?: Helioviewer really wants a mouse and a wide window. It will load on a phone, but the experience is built for desktop.
What kind of site is Helioviewer?: We list it under Cosmos & Scale — zoom out until you feel small. Building a film of one specific flare out of raw observatory frames takes about four clicks, and the loop you get back is the footage the science teams work from.