sundog

Halo beside sun

A sundog is a bright spot or halo that appears in the sky on either side of the sun, caused by sunlight refracting through ice crystals in the atmosphere.

Sundogs typically occur when the sun is low on the horizon and often appear as rainbow-colored patches, though they can also be whitish.

They frequently come in pairs, positioned roughly 22 degrees from the sun.

The phenomenon is also called a parhelion or mock sun.

phenomenon

parhelion

Mock solar apparition

atmospheric

cirrus

High wispy ice formation

stratosphere · troposphere · visibility · dawn · dusk · horizon · arctic · polar · humidity · altitude

optical

refraction

Wave bending between media

iridescence · chromatic · glare · brilliance

folklore

superstition

Baseless belief in omens

Categories
Opposites
solar vs lunar optical phenomena

sundogmoon halo

Ring around the moon

lunar halo

optical phenomenon vs source object

sundogsun

Earth's primary star

solar disk · solar disc

atmospheric phenomena vs clear sky conditions

sundogclear sky

Atmosphere without clouds

Family

sundogs

Familiarity
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Profile
Used worldwide · Timeless · Concrete · Positive · Rated G