22 Degree Halo and Contrail Shadow
My thanks to Alan Gibson, urbane forager and regular contributor to this blog, for another great image. In this picture we are looking at two…
My thanks to Alan Gibson, urbane forager and regular contributor to this blog, for another great image. In this picture we are looking at two…
My thanks to Alan Gibson, author of the Urbane Forager blog and book, for sending me these great images of a contrail shadow. (Contrails are…