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Sun Halo and Clouds in the Sky

A circular rainbow of light encircles the morning sun above drifting cloud formations along the horizon.

A coloring page showing a sun halo above billowing clouds, with clear outlines and open spaces for children to color.
Sun Halo and Clouds in the Sky
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A4 format (landscape), black outlines on a white background · for home and classroom use

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Sun Halo over Clouds and Horizon

This atmospheric scene captures a sun halo glowing above layer after layer of clouds as the sun rises over the horizon. The sun appears in the upper corner alongside another bright sun disk surrounded by rays and a small cloud.

How Sun Halos Form in the Atmosphere

Sun halos occur when sunlight refracts through millions of hexagonal ice crystals suspended in high-altitude cirrus clouds. These optical rings usually form at a precise angle of 22 degrees around the sun. Because cirrus clouds often precede weather fronts, spotting a halo frequently signals approaching rain or snow within twenty-four hours.

Colors of a Sun Halo and the Morning Sky

  • Sun disk: Brilliant white with a glowing pale yellow outer edge
  • Inner edge of the halo: Soft reddish tint closest to the sun
  • Outer edge of the halo: Faint bluish hue tapering into the sky
  • Clouds: Deep gray near the base with bright white tops in morning light
  • Sky background: Soft blue fading into warm orange near the horizon
Questions and answers

Questions About Sun Halos

Why does a sun halo look like a ring instead of a full rainbow?
Halos form a complete circle because light bends through millions of ice crystals oriented randomly in all directions around the sun. Unlike rainbows, which appear opposite the sun, halos encircle the sun directly.
Is it safe to look directly at a sun halo in the sky?
Looking directly at the sun can damage eyes, so observers should shield the bright solar disk with a hand or an object while viewing the surrounding halo ring.
Do sun halos only happen during winter?
Sun halos can occur during any season of the year because the upper atmosphere remains freezing cold even on hot summer days. High cirrus clouds hold ice crystals year-round.
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