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Affichage des articles dont le libellé est ASTRONOMY - Ghost Aurora over Canada. Afficher tous les articles
Affichage des articles dont le libellé est ASTRONOMY - Ghost Aurora over Canada. Afficher tous les articles

22/10/2023

ASTRONOMY - Ghost Aurora over Canada

 2023 October 22

A landscape is pictured with snow and a line of evergreen
trees. In the sky is a field of stars but also notable
green aurora. The largest aurora appears similar in form
to a Halloween ghost,
Please see the explanation for more detailed information.

Ghost Aurora over Canada
Image Credit & Copyright: Yuichi TakasakaTWAN

Explanation: What does this aurora look like to you? While braving the cold to watch the skies above northern Canada early one morning in 2013, a most unusual aurora appeared. The aurora definitely appeared to be shaped like something, but what? Two ghostly possibilities recorded by the astrophotographer were "witch" and "goddess of dawn", but please feel free to suggest your own Halloween-enhanced impressions. Regardless of fantastical pareidolic interpretations, the pictured aurora had a typical green color and was surely caused by the scientifically commonplace action of high-energy particles from space interacting with oxygen in Earth's upper atmosphere. In the image foreground, at the bottom, is a frozen Alexandra Falls, while evergreen trees cross the middle.

ASTRONOMY - Christmas Tree Aurora

 2024 December 23 Christmas Tree Aurora Image Credit & Copyright:  Jingyi Zhang Explanation:  It was December and the sky lit up like a ...