I travelled to Antalya, in Turkey, to have a better weather and a larger percentage of the Partial Solar Eclipse visible, and bring with me my portable ED80 equipped with a Daystar Chromosphere filter. I was in the coastline and not farway from the airport, but didn´t imagine to have a lucky moment of capturing a nice plane crossing the only piece of the Sun which was not eclipsed by the Moon silhouette. Captured half an our before its ending, when was 11h38m UT (+3h Antalya) the image shows a single run of a few seconds in slow motion, revealing the waves of heat produced by the plane jets, causing turbulence in the atmosphere and distorting the moon’s limb. Another interesting phenomenon is visible, the contrails left behind from the aircraft, which in this case appeared as dark clouds for being against the bright disc of the sun. According to a BBC article: “Three things are needed for them to form: water vapour, cool air and particles on which the water vapour can condense. Water vapour is produced by planes as the hydrogen in its fuel reacts with oxygen in the air. In cold conditions (typically below around -40C (-40F)) it can condense, typically on the soot particles also emitted from aircraft engines, to a fog of droplets, which then freeze to form ice particles. The process broadly resembles frozen breath on a cold winter’s day. Not all aircraft produce contrails – they are estimated to occur in about 18% of flights. The air needs to be cool enough for the water to freeze, which is why they usually only appear above certain altitudes – typically 20,000ft (6km). In clear, cloudless air, contrails disappear quickly, as the dry ambient air makes the ice particles sublimate (pass from a solid to a gas). But if the atmosphere is humid, the ice particles cannot sublimate and contrails can linger for far longer.” Complete 4K Video with sound at: https://www.miguelclaro.com/wp/portfolio/partial-solar-eclipse-with-an-airplane-crossing-in-front-of-the-suns-disc/ Directly on Vimeo here: https://vimeo.com/765392920
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