Editing Aurora (section)

=== Images ===
[[File:Spacecraft View of Aurora Australis from Space.webm|thumb|Video of the complete aurora australis by [[IMAGE (spacecraft)|IMAGE]], superimposed over a digital image of Earth]]

Early work on the imaging of the auroras was done in 1949 by the [[University of Saskatchewan]] using the [[SCR-270]] radar.<ref>{{Cite web |title=Northern Lights |url=https://www.geirangerguide.no/northern-lights |access-date=1 March 2024 |website=Geiranger Guide |language=en-US |archive-date=1 March 2024 |archive-url=https://web.archive.org/web/20240301060356/https://www.geirangerguide.no/northern-lights |url-status=live }}</ref> The altitudes where auroral emissions occur were revealed by [[Carl Størmer]] and his colleagues, who used cameras to [[Triangulation|triangulate]] more than 12,000 auroras.<ref>{{cite journal|last1=Størmer|first1=Carl|title=Frequency of 12,330 measured heights of aurora from southern Norway in the years 1911–1944|journal=Terrestrial Magnetism and Atmospheric Electricity|year=1946|volume=51|issue=4|pages=501–504|doi=10.1029/te051i004p00501|bibcode=1946TeMAE..51..501S }}</ref> They discovered that most of the light is produced between {{convert|90|and|150|km|mi|abbr=on}} above the ground while extending at times to more than {{convert|1000|km|mi|abbr=on}}.