Overview
- Observers across Hokkaido reported a faint red aurora after sunset on November 12, visible low on the northern horizon.
- Rikubetsu Space and Earth Science Museum confirmed naked-eye visibility and described cycles of brightening and dimming.
- Staff at Rikubetsu also noted vertically stretched bands of light moving across the sky during the display.
- Nayoro City Observatory "Kitasubaru" captured photographs documenting the phenomenon.
- Officials attribute the event to large solar flares that occurred for three straight days starting November 9, and they say it could be seen again on November 13.