TYB
NASA Astronomy Picture of the Day
Oct 14, 2023
Circular Sun Halo
Want to see a ring around the Sun? It's easy to do in daytime skies around the world. Created by randomly oriented ice crystals in thin high cirrus clouds, circular 22 degree halos are visible much more often than rainbows. This one was captured by smart phone photography on May 29, 2021 near Rome, Italy. Carefully blocking the Sun, for example with a finger tip, is usually all that it takes to reveal the common bright halo ring. The halo's characteristic angular radius is about equal to the span of your hand, thumb to little finger, at the end of your outstretched arm. Want to see a ring of fire eclipse? That's harder. The spectacular annular phase of today's (October 14) solar eclipse, known as a ring of fire, is briefly visible only when standing along the Moon's narrow shadow track that passes over limited parts of North, Central, and South America. The solar eclipse is partial though, when seen from broader regions throughout the Americas.
https://apod.nasa.gov/apod/astropix.html?
The Ring of Fire: 2023 Annular Solar Eclipse
Watch live with us as a “ring of fire” eclipse travels across the United States on Oct. 14, 2023, from Oregon to Texas.
This event occurs when the Moon passes directly in front of the Sun, but appears too small to completely cover the Sun’s surface – resulting in what appears as a ring of fire in the sky. It’s also known as an annular solar eclipse. Everyone in the contiguous 48 states will have the opportunity to see at least a partial eclipse. Join us for conversations with scientists and telescope views from across the country — and send us your questions in chat using #askNASA.
https://science.nasa.gov/eclipses/future-eclipses/eclipse-2023/
https://www.youtube.com/watch?v=LlY79zjud-Q