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It has not been just a solar halo, but it has had company: supralateral light, parhelion, parhelic circle, Parry arc, superior tangent arc and circumzenithal arc. All in the same image, captured in Folgueroles, in the Osona region.
The solar halo forms around the sun, presenting an iridescent ring on its outer circumference, due to ice crystals when there are high clouds.
A Parry arc is rare, an optical phenomenon that occasionally appears over a 22° halo along with a tangent halo arc, as on this occasion.
This type of halo was first described by Sir William Edward Parry (1790-1855), in 1820, during one of his expeditions to the Arctic in search of the Northwest Passage. That’s why it has its name.
Parhelia are very similar to halos (in fact they can and usually happen at the same time, as in this case), they appear around 22º to the left or right of the sun as bright and even colorful spots in the sky.
I had never seen this, I once saw a double halo with slight parhelion, but not all these elements together in the same scene. In the second photograph that we see in The Photos of the Readers of La Vanguardia I have written the names.
