Like the other phenomena mentioned, tangent arcs form when light enters a hexagonal prism ice crystal and is bent. A difference, however, is in the shape of the ice crystal as they take on more of ...

This forms the sundog shape on each side of the halo. Tangent arcs wing outwards from where they touch the halo directly above and below the sun. They form when cirrus clouds have column-shaped ...

Sun halo and both the upper tangent and lower tangent arcs are showing up on the Minor Hill camera! I can't zoom out far enough to capture both, but what you see on the top is on the bottom as well.

This morning, sundogs, tangent arcs and sun pillars were all visible from the way the sunlight passes through ice crystals in the sky.

A sky watcher in Olympic Valley, California, caught a beautiful and rare weather phenomenon called an upper tangent arc as the sun rose. Hotspots ranked Start the day smarter ☀️ Funniest cap ...