What is a Corona in the Sky?
During a night walk in the early hours today, I was treated to the scene above, a beautiful corona. But what is a Corona? A…
Tag: halo
Shadows are a Sign of Impure Water
Can you see me waving? Shadows are a Sign of Impurities in the Water. From my book, How to Read Water: “You will never see…
Halos, Sun Dogs and Circumzenithal Arcs
What are those bright rainbow colours in the sky, if not rainbows? My thanks to Giel Spierings for the following email and permission to share…
Saharan Dust Moon Halo
There was a 22 Degree halo around the moon a couple of nights ago. This is a sign of cirrostratus, a high veil of icy…
Circumzenithal Arcs
My thanks to Simon Cadman for the following generous email and some great images of some sun dogs and the more rarely-spotted, ‘upside-down rainbow’, also…
22 Degree Moon Halo
Just saw and managed to snap a beautiful 22 degree moon halo. They are caused by the moon’s light refracting through the ice crystals in…