Mastouille

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Mark McCaughreanCurrently doing battle with a truculent million year old baby protostar below the belt of Orion, moving behind clouds some eighty million au away 😬As a brief distraction, here’s a several billion year old grown-up star just one au away, playing with the water and ice in the atmosphere of one of its planets 🌞<a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> ✨ <a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> 🌈 <a href="https://mastodon.social/tags/CloudAppreciationSociety" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CloudAppreciationSociety</a> 🌥️

Mark McCaughreanA 54km ride this evening, half of which was along a new route 🙂Which my ELEMNT recorded & which shows in my weekly ride total, but the ride itself has disappeared from the gizmo & did not sync to my phone or to Strava. Will have to add it manually 🙄Only little spits of rain during the ride, but as this 22° halo & outer elliptical circumscribed halo from earlier in the day show, the weather is a changin’ 🌧️<a href="https://mastodon.social/tags/CyclingLife" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CyclingLife</a> 🚴‍♂️ <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> 📷 <a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> 🌈

Benjamin KnispelOne additional image of the rising Moon with a pine pollen corona. It was quite easy to see with the unaided eye.This was taken on May 12 at 22:26 CEST north of Hanover, Germany.3.2 seconds exposed at f/6.3, ISO 640 and f=200 mm.<a href="https://chaos.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> <a href="https://chaos.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> <a href="https://chaos.social/tags/Light" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Light</a> <a href="https://chaos.social/tags/Diffraction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Diffraction</a> <a href="https://chaos.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://chaos.social/tags/Pollen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Pollen</a> <a href="https://chaos.social/tags/Moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Moon</a>

Peter GutscheDid you know that you can observe fascinating <a href="https://sueden.social/tags/mirages" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mirages</a> in the Black Forest? In my latest blog post, I explore this phenomenon of <a href="https://sueden.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> and share my personal observations from the coast of the English Channel and the mountains of the Black Forest.<a href="https://www.silberspur.de/blogs/read/108" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.silberspur.de/blogs/read/108</a><a href="https://sueden.social/tags/NaturePhenomena" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NaturePhenomena</a> <a href="https://sueden.social/tags/EnglishChannel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#EnglishChannel</a> <a href="https://sueden.social/tags/BlackForest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#BlackForest</a> <a href="https://sueden.social/tags/ScienceBlog" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ScienceBlog</a> <a href="https://sueden.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NaturePhotography</a> <a href="https://sueden.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> <a href="https://sueden.social/tags/FataMorgana" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FataMorgana</a> <a href="https://sueden.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://sueden.social/tags/meteorology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#meteorology</a> <a href="https://sueden.social/tags/Schwarzwald" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Schwarzwald</a> <a href="https://sueden.social/tags/Fotografie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Fotografie</a> <a href="https://sueden.social/tags/NaturFotografie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NaturFotografie</a> <a href="https://sueden.social/tags/Luftspiegelungen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Luftspiegelungen</a>

Benjamin KnispelTree sex makes colored rings in the sky – Yesterday, I observed pollen coronas around the sun and the moon.These colorful rings appear around the sun / the moon when airborne pollen diffracts the light (=deflects it depending on its color).Different pollen types make different coronas. Here, it is likely pine pollen.pic 1 at 14:08 CEST, f=200 mm, sun covered by street lamp.pic 2 at 22:27 CEST, f=200 mm, moon overexposed<a href="https://chaos.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> <a href="https://chaos.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> <a href="https://chaos.social/tags/Light" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Light</a> <a href="https://chaos.social/tags/Diffraction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Diffraction</a> <a href="https://chaos.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a>

Benjamin KnispelVery nice pollen based atmospheric optics.Last night I observed a pollen corona around the bright moon. These colored rings around the moon are created when its light is refracted by airborne pollen.Depending on the type of pollen, different ring shapes and sizes appear. This one is probably from pine pollen.Image: 22:53 CEST | f=300 mm | aperture 5.6 | ISO 1250 | 0.5 s<a href="https://chaos.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> <a href="https://chaos.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> <a href="https://chaos.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Nature</a> <a href="https://chaos.social/tags/Light" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Light</a> <a href="https://chaos.social/tags/Diffraction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Diffraction</a> <a href="https://chaos.social/tags/Moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Moon</a>

Benjamin KnispelVenus, the crescent moon and Mercury were accompanied by a beautiful purple light (<a href="https://en.wikipedia.org/wiki/Afterglow" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://en.wikipedia.org/wiki/Afterglow</a>) at dusk today.The purple light disappeared relatively quickly as the sun sanke deeper below the horizon. There are just 6 minutes between the two pictures.<a href="https://chaos.social/tags/PurpleLight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PurpleLight</a> <a href="https://chaos.social/tags/Moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Moon</a> <a href="https://chaos.social/tags/Venus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Venus</a> <a href="https://chaos.social/tags/Mercury" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mercury</a> <a href="https://chaos.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> <a href="https://chaos.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophotography</a> <a href="https://chaos.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a>

Mark McCaughreanNot something you see every day 😱Anti-crepuscular rays above & below the eastern horizon, converging on the anti-solar point at the end of the shadow being cast by an airplane’s contrail. Cast by clouds on the other horizon near sunset, these rays are actually parallel, but perspective makes them converge like railway lines.Normally they’re only see above the horizon for obvious reasons 😉As seen from LH754 en-route to Bengaluru last night ✈️<a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> 📷 <a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> 🌄

Mark McCaughreanAnd forty minutes later, the fog had cleared leaving some light cloud, making for some lovely iridescence as the sun set behind the Königstuhl, as seen from a walk in the woods above Ziegelhausen.<a href="https://mastodon.social/tags/Germany" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Germany</a> 🇩🇪 <a href="https://mastodon.social/tags/Heidelberg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Heidelberg</a> 🏰 <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> 📷 <a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> 🌈

Elio CampitelliOk, Mastodon, do your thing. Does anyone know what happened with atoptics.co.uk? It used to be this gorgeous website with lovely explanations about optical phenomena in the atmosphere and an "atmospheric optics picture of the day" to which I subscribed. Now all of it its gone and the only thing left is a plain and boring-looking blog with almost no pictures and ai-feeling text that hasn't been updated in a year. Please boost!<a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> <a href="https://mastodon.social/tags/Optics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Optics</a> <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a>

Mark McCaughreanAfter days of cold, wet, & snowy absence, the Sun had the cheek to reappear today wearing a halo, as if it had done nothing wrong 🌞🤷‍♂️<a href="https://mastodon.social/tags/Heidelberg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Heidelberg</a> 🏰 <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> 📷 <a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> 🌈

Benjamin KnispelDie Wedemark hat auf meinem Weg zum Bahnhof den Himmel schön. Und weil so etwas zu dieser Jahreszeit ruckzuck vorbei ist, muss man dann mal fix vom Tretroller absteigen.Nice pre-sunrise sky while I was scooting to the train station. This certainly justifies a short stop.<a href="https://chaos.social/tags/Sonnenaufgang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Sonnenaufgang</a> <a href="https://chaos.social/tags/Sunrise" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Sunrise</a> <a href="https://chaos.social/tags/Wedemark" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Wedemark</a> <a href="https://chaos.social/tags/Atmosph%C3%A4rischeOptik" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphärischeOptik</a> <a href="https://chaos.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a>

Lee PetersenAtmospheric Optics Photo #5: Parhelion. A bright parhelion (plural parhelia) is sometimes called a mock sun or sun dog. It's another atmospheric optic effect from the refraction of ice crystals appearing on one or both sides of the Sun at or near the 22° halo.<a href="https://alaskan.social/tags/atmosphericoptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#atmosphericoptics</a> <a href="https://alaskan.social/tags/parhelion" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#parhelion</a> <a href="https://alaskan.social/tags/Alaska" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Alaska</a>

Lee PetersenAtmospheric Optics Photo #2: Lunar Halo. The aurora weaves across the sky, seemingly through a 22-degree halo around a near-full moon. These halos are caused by refracting light from the Moon (or Sun) through hexagonal ice crystals in the atmosphere.<a href="https://alaskan.social/tags/atmosphericoptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#atmosphericoptics</a> <a href="https://alaskan.social/tags/alaska" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#alaska</a> <a href="https://alaskan.social/tags/auroraborealis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#auroraborealis</a>

Lee PetersenI'm sharing some atmospheric optics photos today. This first one is known as fata morgana, or a superior mirage. This occurs when light rays bend as they pass through layers of air at different densities, causing the resulting object image to be stretched out or inverted over the horizon (often in many layers). This photo is of the Delta Mountains from Fairbanks, Alaska. Nearly 130 miles away, this part of the Alaska Range is normally barely visible from town.<a href="https://alaskan.social/tags/atmosphericoptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#atmosphericoptics</a> <a href="https://alaskan.social/tags/Alaska" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Alaska</a> <a href="https://alaskan.social/tags/nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#nature</a>

Benjamin KnispelNebensonne und Teil des Horizontalkreises, gestern für wenige Minuten sichtbar.“Sun dog” (parhelion) and part of the parhelic circle could be seen yesterday for just a few minutes.<a href="https://chaos.social/tags/Nebensonne" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Nebensonne</a> <a href="https://chaos.social/tags/Horizontalkreis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Horizontalkreis</a> <a href="https://chaos.social/tags/Parhelion" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Parhelion</a> <a href="https://chaos.social/tags/ParheicCircle" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ParheicCircle</a> <a href="https://chaos.social/tags/Halos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Halos</a> <a href="https://chaos.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Nature</a> <a href="https://chaos.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NaturePhotography</a> <a href="https://chaos.social/tags/Natur" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Natur</a> <a href="https://chaos.social/tags/Naturfotografie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Naturfotografie</a> <a href="https://chaos.social/tags/AtOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtOptics</a> <a href="https://chaos.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> <a href="https://chaos.social/tags/Atmosph%C3%A4rischeOptik" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphärischeOptik</a>

Tim ☑️ 🔭🌃📷🚴🌳Fog-bow and Brocken Spectre in the haar, ElieThings one spots while flying the droneybird around the coast... I hadn't expected such mist but it was pleasantly cooling on a sunny day. Then I noticed a faint pale arc of a rainbow - a fog-bow - and shortly after, a glory as well. With a bit of patience I got the wee dot in the centre - a shadow of the drone itself, a brockenspectre.Prints etc: <a href="https://shiny.photo/gallery/elie" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://shiny.photo/gallery/elie</a><a href="https://mastodon.online/tags/drone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#drone</a> <a href="https://mastodon.online/tags/photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#photography</a> <a href="https://mastodon.online/tags/scotland" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#scotland</a> <a href="https://mastodon.online/tags/coast" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#coast</a> <a href="https://mastodon.online/tags/atmosphericoptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#atmosphericoptics</a> <a href="https://mastodon.online/tags/naturephotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#naturephotography</a>

Mark McCaughreanMorning. A front moving from the south & promising heavy rain in about four hours brings some high clouds in too, making a nice 22° ice halo for a few minutes.Need to get my cycle ride in before the rain comes, I think 😬🤞<a href="https://mastodon.social/tags/CyclingLife" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CyclingLife</a> 🚴‍♂️ <a href="https://mastodon.social/tags/Wassenaar" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Wassenaar</a> 🚀 (if you know, you know) <a href="https://mastodon.social/tags/Netherlands" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Netherlands</a> 🇳🇱 <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> 📷 <a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> 🌈 <a href="https://mastodon.social/tags/CloudAppreciationSociety" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CloudAppreciationSociety</a> ☁️

Dr. John Barentine FRAS<a href="https://astrodon.social/tags/CitizenScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CitizenScience</a> opportunity: photos of unusual, brightly colored sunsets in the wake of major volcanic eruptions in the recent past can be used to extract color ratios that indicate <a href="https://astrodon.social/tags/aerosol" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#aerosol</a> loading of the <a href="https://astrodon.social/tags/stratosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#stratosphere</a>. In turn, that can help researchers constrain the ash "yield" of eruptions and improve atmospheric models.If you're interested in contributing, DM me and I will put you in touch with the research team.Reference: <a href="https://acp.copernicus.org/articles/14/2987/2014/acp-14-2987-2014.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://acp.copernicus.org/articles/14/2987/2014/acp-14-2987-2014.html</a><a href="https://astrodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> <a href="https://astrodon.social/tags/AtmosphericScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericScience</a>

Mark McCaughreanDayglo halo 🌞A lovely long-lasting 22° halo around the Sun due to ice in cirrus high in the sky over Wassenaar today, nicely set off by some passing low clouds 🙂👍<a href="https://mastodon.social/tags/Netherlands" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Netherlands</a> 🇳🇱 <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Photography</a> 📷 <a href="https://mastodon.social/tags/AtmosphericOptics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AtmosphericOptics</a> 🌈 <a href="https://mastodon.social/tags/CloudAppreciationSociety" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CloudAppreciationSociety</a> ⛅️

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