Aurora Australis

Astronomy Picture of the Day · 2015-07-04 · NASA (public domain)

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Aurora Australis — APOD for 2015-07-04

Not fireworks, these intense shimmering lights still danced across Earth's night skies late last month, seen here above the planet's geographic south pole. The stunning auroral displays were triggered as a coronal mass ejection blasted from the Sun days earlier impacted the magnetosphere, beginning a widespread geomagnetic storm. The six fisheye panels were recorded with digital camera and battery in a heated box to guard against -90 degree F ambient temperatures of the long winter night . Around the horizon are south pole astronomical observatories , while beyond the Aurora Australis stretch the stars of the southern Milky Way.

Astronomy Picture of the Day for 2015-07-04 — image & explanation courtesy of NASA (public domain), mirrored at Tukuk-OS for reading and search convenience.

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