|
Credit & Copyright: Frank Andreassen (nettfoto.no)
Explanation:
Higher than
highest communications tower, higher than
highest mountain, higher than
highest airplane, lies the realm of the aurora.
Auroras rarely reach below 60 kilometers,
and can range up to 1000 kilometers.
Aurora light results from energetic
electrons and
protons striking
molecules in the
Earth's atmosphere.
Frequently, when viewed from space, a
complete aurora
will appear as a circle around one of the Earth's
magnetic poles.
Pictured above is a particularly rare
purple auroral
corona that occurred on August 30, high above
Harstad,
Norway.
|
January February March April May June July August September October November December |
| ||||||||||||||||||||||||||||||||||||||||||||||||
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: aurora
Publications with words: aurora
See also:
- APOD: 2024 January 14 Á Dragon Aurora over Iceland
- APOD: 2024 January 3 Á A SAR Arc from New Zealand
- APOD: 2023 December 12 Á Aurora and Milky Way over Norway
- The SAR and the Milky Way
- APOD: 2023 November 5 Á Creature Aurora Over Norway
- APOD: 2023 October 22 Á Ghost Aurora over Canada
- APOD: 2023 April 19 Á Auroral Storm over Lapland