Reddened Night Sky over Dolomites Range

February 02, 2024


Photographer: Alessandra Masi
Summary Author: Alessandra Masi  

A strong G3-class geomagnetic storm struck the Earth on November 5, 2023, with the result that low latitude auroras could be observed as far south as 35 degrees north latitude. The photo shown above was captured at Giau Pass in the Dolomites Range of northern Italy. It's believed that these reddish lights are in fact SAR Arcs, short for Stable Aurora Red Arcs, and not true auroras. Related to auroras, they're a signature that thermal energy during geomagnetic storm events is leaking into the upper atmosphere and interacting with the Earth's loop current system, a doughnut-shaped circuit carrying millions of amperes around our planet.

Photo Details: Canor R6 camera; Samyang 14 lens. Panorama: Multi exposure from 125 to 1000 ISO; from 1 to121 seconds exposure.

Giau Pass, Dolomites Range, Italy Coordinates: 46.4837,12.0520

Related Links:

Mediterranean Aurora

Alessandra’s Website