Daily Solar Data

On this page, you’ll find daily solar data which is more or less in real-time. The data is sourced directly from NOAA via a live JSON feed, so every time you refresh this page, the feed will also be refreshed. On this page you’ll find detailed solar region information. Solar regions are numbered and scrolling down the page you’ll see a current image of the sun that shows where the regions are. Each region has a size (area), the number of spots in the region, the magnetic characterisation of the spot along with the chance of a C, M and X class flare. There is more general information on the space weather page.

Solar Regions

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Solar Flux @2800 MHz

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Numbers for good DX

Solar Flux (SFI) levels over the past month

The graph below highlights the Solar Flux (SFI) over the past month. For good DX, the solar flux should remain above about 150 for a few days with the K index below 2. The k index will rise after a solar flare. This graph is almost real-time and is sourced from NOAA.





This channel highlights the outer atmosphere of the Sun – called the corona – as well as hot flare plasma. Hot active regions, solar flares, and coronal mass ejections will appear bright here. The dark areas – called coronal holes – are places where very little radiation is emitted, yet are the main source of solar wind particles.


Solar cycles over the ages