#atmosphericoptics — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #atmosphericoptics, aggregated by home.social.
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And in addition to the eclipse, I'm going to claim perhaps the tiniest green flash ever, as the upper limb of the Sun finally slipped below the horizon.
As also seen from the Teltschikturm high in the Odenwald.
After all that excitement, I wonder if I can also stay up late enough to catch some Perseid meteors as well 🙂🤷♂️
#SolarEclipse2026
#SolarEclipse
#GreenFlash
#Heidelberg
#Photography
#AtmosphericOptics -
Things the Sun did today:
* 22º solar halo
* nice clouds
* crepuscular raysNice :)
#strathearn #atmosphericoptics #perthshire #scotland #photos #nature #sky #clouds #solarhalo #OppoFindX9Pro
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A slightly more conventional shot of the upper arc of the halo around the Sun a few minutes earlier, also with some interesting clouds, a tiny hint of iridescence, & a couple of contrails, one casting its shadow on the thin cirrus below.
#Heidelberg 🏰
#Photography 📷️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#AtmosphericOptics 🌈 -
"There's ice in them thar skies ... "
Well, the 22º halo around the Sun is due to small ice crystals at high altitude, but the iridescence in the clouds could be due to ice or small water droplets.
Either way, an interesting mix of atmospheric phenomena on a sultry July afternoon, if a little tricky to capture the right dynamic range & colour balance with just a phone camera 🤷♂️
#Heidelberg 🏰
#Photography 📷️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#AtmosphericOptics 🌈 -
🌅 At sunset, clouds do not simply glow. They reveal what the long path of sunlight has quietly altered.
✍️ Follow the twilight story: https://www.theperpetuallycurious.org/red-clouds-sunset/
The evening sky keeps its science in color.
#AtmosphericOptics #Sunset #Clouds #Science #Skywatching #TPC8
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A reminder to look up from the garden insects occasionally ☝️
Not a common sight, but always a welcome one – a circumzenithal arc appeared above the Sun this evening, with a bonus parhelion to boot.
Among the most saturated atmospheric phenomena colour-wise, they're often missed because they're so high in the sky. I once saw one reflected in a car windscreen, before looking upwards.
#Heidelberg 🏰
#Photography 📷️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#AtmosphericOptics -
Saw my first fully circular 22° halo this morning. (Halos are caused by scattering from ice crystals in form of hexagonal plates.) #AtmosphericOptics #Halo
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Just eight days ago, I gave a popular science talk at @mpi_grav about colorful phenomena in the sky, and now – boom!
Just minutes ago, there were beautiful iridescent clouds (https://en.wikipedia.org/wiki/Cloud_iridescence) here, north of Hanover, Germany.
Here, light is diffracted by tiny droplets in the clouds, creating these typical mother-of-pearl colors.
#Light #Physics #Photography #NaturePhotography #Diffraction #AtmosphericOptics
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There is currently a halo (22° halo, https://en.wikipedia.org/wiki/22%C2%B0_halo) around the moon.
The ring is created by moonlight refracted by hexagonal, non-oriented ice crystals. These ice prisms are found in high-altitude clouds (cirrus clouds). This type of halo is quite common. Its radius is 22°, which is about 44 full moon diameters.
#Halo #AtmosphericOptics #Moon #Physics #Refraction #Cirrus #Photography
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Regenbogenfragment bei tiefem Sonnenstand heute früh 10 min nach Sonnenaufgang. Der Regen zog in der Entfernung schnell durch, das Regenbogenstück war nur wenige Minuten lang zu sehen
#Regenbogen #AtmosphärischeOptik #AtmosphericOptics #Wetter #Hannover #Wedemark
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That was a really bright rainbow just before sunset when a heavy shower passed over Wedemark.
#Rainbow #Hannover #Wedemark #AtmosphericOptics #Sunset #Nature #Photography
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Two different sets of #IridescentVapourTrails captured from Oxfordshire, UK 15 June '25 The colours are created when sunlight is diffracted by tiny water droplets that condense out over the aircraft wings. Canon 1100D + 300mm zoom lens #AtmosphericOptics #Aviation #Diffraction
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As the almost #FullMoon rose on 11th June 2025, it created the tallest #MoonPillar I've ever seen, extending about 30 degrees up! Photographed from North Oxfordshire with a Canon 1100D + Sigma 300mm lens #AtmosphericOptics
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Currently 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 🌞
#SpaceScience ✨
#AtmosphericOptics 🌈
#CloudAppreciationSociety 🌥️ -
A 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’ 🌧️
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One 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.
#AtmosphericOptics #Photography #Light #Diffraction #Physics #Pollen #Moon
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Did you know that you can observe fascinating #mirages in the Black Forest? In my latest blog post, I explore this phenomenon of #AtmosphericOptics and share my personal observations from the coast of the English Channel and the mountains of the Black Forest.
https://www.silberspur.de/blogs/read/108
#NaturePhenomena #EnglishChannel #BlackForest #ScienceBlog #NaturePhotography #Photography #FataMorgana #Physics #meteorology #Schwarzwald #Fotografie #NaturFotografie #Luftspiegelungen
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Tree 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
#AtmosphericOptics #Photography #Light #Diffraction #Physics
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If you expose the image more (here the same conditions as before, but t=1.3 seconds), you can see the typical multiple diffraction rings.
#AtmosphericOptics #Photography #Nature #Light #Diffraction #Moon
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Very 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
#AtmosphericOptics #Photography #Nature #Light #Diffraction #Moon
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Halo activity has been on and off half of the day – now with both parhelia / left and right sundog.
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Striking purple light this morning, which disappears within just five minutes. First picture taken at 6:40 CET (Sun 3.2° below the horizon), second picture at 6:45 CET (Sun 1.8° below the horizon).
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Venus, the crescent moon and Mercury were accompanied by a beautiful purple light (https://en.wikipedia.org/wiki/Afterglow) 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.
#PurpleLight #Moon #Venus #Mercury #AtmosphericOptics #astrophotography #astronomy