Lunar Halo over Sicily

Lunar Halo over Sicily

A halo (from ancient Greek ἅλως, a 'threshing floor, disk') is an optical phenomenon produced by light (typically from the Moon or Sun) interacting with ice crystals suspended in the Earth's atmosphere. This is a circular halo (properly called the 22° halo). The ice crystals responsible for halos are typically suspended in cirrus or cirrostratus clouds in the upper troposphere (5–10 km (3.1–6.2 mi). Circular 22 degree halos like this one are visible much more often than rainbows.

Ragusa is a city and comune, capital of the province of Ragusa in the autonomous island region of Sicily in southern Italy. Sicily is an island in the central Mediterranean Sea and one of the twenty regions of Italy, situated south of the Italian Peninsula in continental Europe.

Italy, officially the Italian Republic, is a country in Southern and Western Europe. It consists of a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land border, as well as nearly 800 islands, notably Sicily and Sardinia. Italy shares land borders with France to the west; Switzerland and Austria to the north; Slovenia to the east; and the two enclaves of Vatican City and San Marino.

Image Credit: Giovanni Passalacqua

Image Details: Canon camera EOS R Lens Artisans 10mm
Date: Oct. 29, 2026
Location: Ragusa, Sicily, Italy

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