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Halo (optical phenomenon)
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A halo is an optical phenomenon produced by light interacting with ice crystals suspended in the atmosphere. Halos can have many forms, ranging from colored or white rings to arcs and spots in the sky
A 22° halo around the Sun, observed over Bretton Woods, New Hampshire, USA on February 13, 2021
A 22° halo around the Sun, observed over Bretton Woods, New Hampshire, USA on February 13, 2021
A 22° halo and circumscribed halo around the Moon, observed near Kitt Peak National Observatory
A 22° halo and circumscribed halo around the Moon, observed near Kitt Peak National Observatory
From top to bottom: A circumzenithal arc, supralateral arc, Parry arc, upper tangent arc, and 22° halo
From top to bottom: A circumzenithal arc, supralateral arc, Parry arc, upper tangent arc, and 22° halo
The so-called "Sun Dog Painting" (Vädersolstavlan) depicting Stockholm in 1535 and the celestial phenomenon at the time interpreted as an ominous pres
The so-called "Sun Dog Painting" (Vädersolstavlan) depicting Stockholm in 1535 and the celestial phenomenon at the time interpreted as an ominous presage
Glory (optical phenomenon)
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A glory is an optical phenomenon, resembling an iconic saint's halo around the shadow of the observer's head, caused by sunlight or moonlight interacting with the tiny water droplets that comprise mis
Halo (optical phenomenon)
…them can signify an approaching frontal system. Other common types of optical phenomena involving water droplets rather than ice crystals include the glory and the rainbow. While Aristotle had mentioned halos and parhelia in antiquity, the first European descriptions of complex displays were those of…
Glory around the shadow of a plane. The position of the glory's centre shows that the observer was in front of the wings.
Glory around the shadow of a plane. The position of the glory's centre shows that the observer was in front of the wings.
A solar glory and Brocken spectre
A solar glory and Brocken spectre
Illustration from Jorge Juan's and Antonio de Ulloa's, Voyage to South America (1748), depicting three separate scenes: (1) on the left, an erupting v
Illustration from Jorge Juan's and Antonio de Ulloa's, Voyage to South America (1748), depicting three separate scenes: (1) on the left, an erupting volcano; (2) on the upper right, optical glories surrounded by a fog bow; and (3) on the lower right, arcs of white light near a mountaintop
A solar glory and Brocken spectre from Crib Goch in 2008
A solar glory and Brocken spectre from Crib Goch in 2008