3 ms·
Aurora australis are dimmer than aurora borealis.
by 77pt77 2y ago
Aurora australis are dimmer than aurora borealis.
- aussieguy1234 2y agoSource? I believe it depends on what part of the magnetic field the CME hits. There are more people living closer to the north pole which might give that impression initially. Here in Australia I leaned pretty quickly from other local Aurora chasers not to rely on Kp, which is relevant to North America only. Instead I use the global storm strength and the Hobart magnometer readings.