Der Halo von Arosa auf „MyModernMet“

Anfangs Dezember hat ich das Glück auf dem Hörnligrat in Arosa einen wunderschönen Halo zu beobachten und diesen mit dem Smartphone zu fotografieren. Dieses Bild ging über die sozialen Medien tatsächlich in die ganze Welt. Von überall her habe ich Anfragen erhalten, das Bild wurde in vielen wissenschaftlichen Blogs abgebildet und kommentiert. Auch viele Wetterkanäle haben das Bild publiziert. Der für mich schönste Artikel kommt allerdings von Jessica Stewart, die für das US Online-Magazin My Modern Met schreibt. Diesen Artikel wurde am 25. Dezember 2019 veröffentlicht, diesen „drucke“ ich gerne hier ebenfalls noch ab:

Alle Posts über meine Begegnung mit diesem Halo in Arosa sowie den Folgen findest Du hier: https://beersandbeans.ch/tag/halo/

Skier Uses Smartphone to Capture Incredible Light Halos in the Swiss Alps

By Jessica Stewart on December 25, 2019

Light Halo Explanation GIF

When amateur blogger Michael Schneider went skiing in the Swiss Alps with friends, he was looking to have a day of fun and adventure. But what he didn’t expect was to take a photograph that would cause a sensation online. As Schneider waited for a friend on the mountain, he took advantage of the moment to test out the camera on his new smartphone. The resulting photographs, which capture striking halos around the sun, went viral after he posted one to Twitter.

What followed were a flurry of explanations about why, and how, these rings appear around the sun. A light halo is an optical phenomenon that occurs when light interacts with ice crystals suspended in the atmosphere. While we often think of a halo as being exclusively circular, they can actually take many different shapes. From arcs to light pillars, some are more common than others.

Luckily for us novices, several specialists set about annotating Schneider’s photograph. Mark McCaughrean, Senior Advisor for Science & Exploration at the European Space Agency, used information gathered from the website Atmospheric Optics to create a wonderful annotation of the different halos visible in Schneider’s photo. Looking at his diagram, it’s incredible to see how many halo examples were captured in one image.

The complete circle formed closest to the sun is what most people simply call a halo; but to be more specific, it’s actually known as a 22° halo. There are also rarer halos in the photo, such as a Supralateral arc toward the top of the image. This faintly colored rainbow arc forms when “rays pass between the side and basal (end) faces of singly oriented hexagonal columns.”

Overall, Schneider’s experience is a great reminder that even if you don’t have professional equipment on hand, it doesn’t mean that you can’t capture a meaningful photograph. Read more about Schneider’s experience on his blog and see more photographs from his time on the mountain below.

While skiing in Switzerland, Michael Schneider captured an incredible photo of light halos on the mountain.

Light Halo by Michael Schneider

This annotation helps explain the different light phenomena seen in the image.

Explanation of How a Light Halo Works

Illustration: Mark McCaughrean

Here are more photos from the mountain, which show how the halos became more apparent over time.

Light Halo by Michael Schneider
Light Halo by Michael Schneider
Light Halo by Michael Schneider
Light Halo by Michael Schneider

Michael Schneider: Website | Twitter

My Modern Met granted permission to feature photos by Michael Schneider.

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5 Comments

    1. Michael's Beers & Beans

      Hallo, ja es war wohl derr berühmte „richtige Moment“. Spannend was dabei raus gekommen ist. Ich danke Euch, dass Ihr bei mir immer mal vorbeischaut und freue mich, wenn ich bei Euch ein bisschen „mitwandern“ darf. Ich wünsche Euch ein bewegendes, glückliches und tolles Jahr! Liebe Grüsse Michael

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