With helioseismology we can see that an active region is on the sun’s far side, the side facing away from Earth. The dark patches on the far-side images (absent when no significant active regions are on the far side) indicate the presence of active regions. Right at the left limb of the Sun (orange/dark areas) we see a dark large active region AR13133. The magnetic map of the Sun is shown in grey/yellow.

The full story is at the JSOC html site and a general description of the rattling Sun is at EoS.org

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The AIP operates from many locations all across Australia. We acknowledge the Aboriginal and Torres Strait Islander peoples as the traditional custodians of the land on which we work, learn and live. We pay our respect to Elders past, present and emerging.

Upcoming events

Australia/Sydney
62nd Annual General Meeting of the Australian Institute of Physics

3 Feb 2025 5:30 PM

Zoom
Australia/Brisbane
The 47th Annual Condensed Matter and Materials Meeting, Wagga 2025

4 Feb 2025 2:00 PM

University of Queensland
Australia/Sydney
PHYSCON 2025

21 Feb 2025

Swinburne University of Technology and Online