12/05/2024
Captured below are iPhone photos of Aurora Australis that I took last night in bayside Melbourne. The first two were taken at Ricketts Point, Beaumaris. The rest were taken in Sandringham, north of Half Moon Bay. Aurora australis was lighting up the southern skies of Australia due to an “extreme” geomagnetic solar storm.
The Aurora Australis was only faintly visible to the naked eye at these locations. A reminder that energetic transformations are ever present around us. A beautiful reminder that our sensory limitations often blind us to the dynamic and everpresent energy of the universe.
The physics behind the phenomenon of Aurora’s, originates from the sun. The sun is a ball of superhot gases made of electrically charged particles called ions. The ions, which continuously stream from the sun’s surface, are called the solar wind. As National Geographic explains:
“As solar wind approaches Earth, it meets Earth’s magnetic field. Without this magnetic field protecting the planet, the solar wind would blow away Earth’s fragile atmosphere, preventing all life. Most of the solar wind is blocked by the magnetosphere, and the ions, forced around the planet, continue to travel farther into the solar system.
Although most of the solar wind is blocked by the magnetosphere, some of the ions become briefly trapped in ring-shaped holding areas around the planet. These areas, in a region of the atmosphere called the ionosphere, are centered around Earth’s geomagnetic poles. The geomagnetic poles mark the tilted axis of Earth’s magnetic field. They lie about 1,300 kilometers (800 miles) from the geographic poles, but are slowly moving.
In the ionosphere, the ions of the solar wind collide with atoms of oxygen and nitrogen from Earth’s atmosphere. The energy released during these collisions causes a colorful glowing halo around the poles—an aurora. Most auroras happen about 97-1,000 kilometers (60-620 miles) above Earth’s surface.”