This page describes an image Iceland aurora, by Emanuele Balboni, Italy
Image caption:
Third place in the 2021 IAU OAE Astrophotography Contest, category Aurorae (still images)
The blurred motions of the aurora caught during the exposure time of this photograph beautifully illustrate its dynamic nature. While certain forms of aurorae, like homogeneous arcs and bands or diffuse glows, can remain static for hours, others, like rayed arcs or bands (also called "curtains"), can change within seconds in shape and brightness.
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Image credit:
Emanuele Balboni/IAU OAE
DOI: 10.5281/zenodo.5278941
Related glossary terms:
Aurora
, Aurora Borealis
, Geomagnetic Storm
Categories:
Naked Eye Astronomy
Image license: Creative Commons Attribution 4.0 International (CC BY 4.0) Creative Commons Attribution 4.0 International (CC BY 4.0) icons
The media file captions presented on the OAE website were written, translated and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits for our translation project here. All media file captions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE". The media files themselves may have different licenses (see above) and should be credited as listed above under "credit".
Captions in Different Languages:
Image caption: Terzo posto al concorso di astrofotografia IAU OAE 2021, categoria Aurorae (immagini fisse)
I movimenti sfocati dell'aurora catturati durante il tempo di esposizione di questa fotografia illustrano magnificamente la sua natura dinamica. Mentre alcune forme di aurore, come gli archi e le bande omogenee o i bagliori diffusi, possono rimanere statiche per ore, altre, come gli archi o le bande raggiate (chiamate anche "tende"), possono cambiare in pochi secondi forma e luminosità.
Image credit: Emanuele Balboni/IAU OAE
Related glossary terms: Aurora , Aurora Boreale , Tempesta Geomagnetica Caption translation status: Approved by a reviewer
Caption translators: Giuliana Giobbi
Caption reviewers: Silvia Casu, Rodolfo Canestrari
