Halos like this one around the sun or moon are caused by ice crystal high in Earth’s sky. Notice the upside-down rainbow-like arc above. It’s called a circumzenithal arc.
Source….www.earthsky.org
Natarajan
Source: Arc and 2 sundogs over Illinois
Halos like this one around the sun or moon are caused by ice crystal high in Earth’s sky. Notice the upside-down rainbow-like arc above. It’s called a circumzenithal arc.
Source….www.earthsky.org
Natarajan
Source: Arc and 2 sundogs over Illinois