A total solar eclipse will cut a swath of shadow through Greenland, the Arctic, Russia, Mongolia and China on August 1. And thousands of people will travel to remote locations just to stand in the dark for three minutes — and maybe perceive the vast size of the solar system.
Locations are rarely convenient, and planning a successful eclipse trip involves specialized maps, astronomical charts, statistical weather data, GPS and optical gear, backcountry camping equipment (perhaps), and a good working relationship with uncertainty.
The reward, though, can be like a short trip into space. The corona itself is a big freakish thing: a feathery halo of streaming particles along magnetic field lines, which look not like nice summer rays but kill-you-dead radiation.
It’s also so big and far away as to bend one’s sense of scale. At least three planets are usually visible, and this August there will be four: Mercury, Venus, Saturn […]
Original post by Dan Glass
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