A Martian Star Trails

From the photographer: “For several days now, skies across southwestern Europe have been filled with Saharan desert dust that sirocco winds from Algeria are carrying all the way to the northwest of the old continent. The result is that we are under a “Martian” sky that prevents any astrophotographic activity. To better render the phenomenon, I have remade the photo from four years ago during the COVID-19 lockdown (March 14, 2020), obtained from the terrace of my home in Ragusa (Sicily-Italy). The shooting modes are identical, but the result is obviously very different: it’s like being on the Red Planet.”

Technical details:
Canon 6D MarkII, Sigma 14 mm lens f/1,8 @ f/5,6, 230  15-seconds exposures @ 800 ISO, taken every 10 seconds