The lunar iridescence which surrounded our satellite in the flood phase, above the extraordinary spiers of the Dolomites beyond the Piave: the breathtaking photo, taken by the astrophotographer Alessandra Masiis making the rounds on the web. The extraordinary phenomenon was immortalized there night of October 6thwhen the sky shone there Hunter’s Moon.
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The full moon, surrounded by beautiful iridescence, above the extraordinary spiers of the Dolomites beyond the Piave – writes the author of the shot on her Instagram page – On the left the Cridola, in the center the Torre Valentino and the Crodon di Giaf and on the right the Monfalcon di Cimoliana and Punta Koegel
As Marco Meniero explains on the ‘Gruppo Astrofili Galileo Galilei’ portalthe iridescence lunar they are quite rare, and appear when the light of the Moon passes through the cirrusclouds present in the upper troposphere (from 5 thousand meters altitude up to 13 thousand meters in temperate regions) as they appear as white filaments or whitish patches arranged in narrow bands, with a filamentous or silky appearance.
The colors are generated by diffraction of light around water drops and pieces of ice. If the dimensions of the drops and ice are similar, round crowns are formed, otherwise the phenomenon appears with different shapes, as in the photo of Alessandra Masi.
The author has already been the protagonist of the photos of the day selected by NASA several times with her works. And who knows, maybe this one won’t be mentioned again, it’s truly extraordinary.
Source: Alessandra Masi/Instagram
