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Among the best-known halos is the 22° halo, often just called "halo", which appears as a large ring around the Sun or Moon with a radius of about 22° (roughly the width of an outstretched hand at arm's length).
31 Μαΐ 2023 · Have you ever looked up and spotted a large ring of light around the sun or moon? Scientists refer to these as 22-degree halos.
One of these phenomena is the solar halo, also known as the sun halo. A solar halo appears as a luminous ring, circle, or arc around the sun, often displaying a range of colors. But what causes this stunning spectacle to occur, and why is it so rare?
12 Απρ 2024 · Solar halos or 22-degree halos are hazy rainbow-colored rings that occur at a radius of approximately 22 degrees around the sun. It results from the sun's light being refracted by ice crystals in Cirrus clouds in the upper troposphere at altitudes of approximately 6000 meters or 20 000 feet.
16 Αυγ 2021 · Have you ever looked up near the Sun and spotted a ring of color, as if a rainbow is surrounding the Sun? The phenomenon is technically not a rainbow.
17 Οκτ 2023 · Ever seen a ghostly rainbow halo around the Sun? A Sun halo is caused by the refraction, reflection, and dispersion of light through ice particles suspended within thin, wispy, high altitude cirrus or cirrostratus clouds.
A halo is a ring or light that forms around the sun or moon as the sun or moon light refracts off ice crystals present in a thin veil of cirrus clouds. The halo is usually seen as a bright, white ring although sometimes it can have color.
