Noctilucent Clouds 2021-06-05

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Noctilucent (“night-shining”) clouds are the highest in the atmosphere, at around 76-85km altitude. They only appear in the summer months at latitudes from 50-70º (north or south), when the sun is more than 6º below the horizon. Formed in the mesosphere at very cold temperatures from ice, dust and water vapour, their gossamer threads undulate and shimmer in shades of electric blue.

There was a particularly decent display on Friday/Saturday morning – I nipped out and spent a happy hour making the video:

Timelapse: Sony a7r3, Sigma 14-24mm lens, SkyWatcher StarAdventurer tracking mount for rotation

Stills: Fuji X-T4, 16-80 f/4 lens

A selection of the images are available as prints, masks, cards and other products (even socks and jigsaw puzzles!) from my main website: ShinyPhoto: Noctilucent Clouds

Twilight

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Some more tests of the Fuji X-T20 in low light conditions.

Summer has the worst daytime light for photography with harsh shadows and washed-out pale tones; however I love the night sky with its permanent twilight (at this latitude) giving cobalt blue sky with hints of the sun’s warmth just below the horizon.

Plus it’s more comfortable than winter astrophotography 😉

Three studies in cloud structure – nature’s abstract patterns and a tiny blob of light of a hamlet across Strathearn:

Continuing the anthropocene-influence theme, glorious blue, red and pale clouds in an orange-tinged sky against a tiny pylon breaking the horizon:

The Pylon

The Pylon

 

 

A Day In Clouds

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That was 2017-06-20, that was. A beautiful blue sky with white fluffy wispy cirrus cloud catching the setting sun…

…followed by a noctilucent cloud display around 1am:

NLCs are the highest-flying clouds, occurring at altitudes up to 80km where the next highest type (cumulonimbus) only reaches 12km and most are lower still. Most typically they resemble a fine silver filigree of ice-cold pale blue, although more complex forms have been seen. First maybe-seen in 1885, they only really came to prominence since the 1980s, as a canary for changes in the upper atmosphere linked to climate change.

As I stood and watched the display, a patch of silver mist formed over Strathearn and made its way west along the A85 toward Crieff, so I made a little timelapse video – 17 minutes’ data compressed into 1:

Noctilucent Clouds (NLCs) 2017-06-15

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It’s just a week off being the longest day, and it seems never to really get dark at night around here at the moment. Still. While that precludes shooting the aurora, instead it’s noctilucent cloud (NLC) season – just started in the past couple of days so I was very pleased to capture these last night / this morning around 1am.

Apart from being a canary for global warming, NLCs are a beautiful phenomenon, glowing cold bluey-white typically filament threads lighting up the sky. Or, if you leave the camera thinking for 2 minutes they blur nicely with the more mundane clouds:

Noctilucent Clouds, around 1am – Crieff across Strathearn from Auchterarder
A total 2 minutes of exposure to see what the NLCs and ordinary clouds would get up to over that kind of timescale.

And I made a short timelapse – 6 minutes compressed into an 11-second video:

Hogmanay 2016/2017

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Happy new year! I saw the year in from Blackford Hill looking at the fireworks over Edinburgh Castle.

Watching folks arrive was almost like a scene from Lord of the Rings – this line of torch lights processing along the hillside track, reminiscent of the last march of the Elves.

The Least Amount of Landscape

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Just to disprove the idea of deterministic landscape photography, as I was driving back from Acharn through Grandtully along Strathtay, the sky took on a most beautiful glowing cobalt-blue colour of dusk combined with the icy diamond clarity of sub-zero late autumn temperatures in the Highlands.

One of those scenes where it took a little work to convert the camera’s recordings back to something resembling what I saw: after dark fell I couldn’t make out what was in the fields beyond the car headlights; there was nothing but horizon and the glow… and one tiny fragment of wispy cloud.

It doesn’t get much more minimalist than this…

Late Night Mist

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Late Saturday evening, I was driving back from Argyll to Perthshire; got as far as a country lane outside Braco a few miles from home and saw this beautiful fog swirling around a copse of trees with the Ochils in the background, all in the silvery moonlight.
 
Olympus Pen-F, Pentax 50mm f/1.7, 3 frames at 8s*8 in hi-res mode.
 
Unusually for me, there’s been quite a bit of work removing extraneous distractions such as foreground telegraph poles. But the feeling is still there 🙂

Late Night Mist

Late Night Mist

Donner und Blitzen

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Wonderful amazing weather last night. The thunderstorm started around midnight, resumed sparking silently but continuously in the distance from 2 to 3am and then restarted yet again around 8-9am with jubilant thundercracks and resounding booming rumbles echoing off the clouds.

These photos were made around 2.30am – just the distant lightning illuminating the clouds.

Epic.

Sunset Timelapse

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Further experiments making timelapse videos – this time the sunset looking across Strathearn to Crieff – from my favourite spot for hunting aurora.

The second has Ursa Major emerging, one star at a time, over the course of 50 minutes around midnight.

Both were taken using the Olympus Pen-F with its built-in intervalometer – the first with the 12-60mm f/2.8 PRO (four-thirds) lens, the second with the 7-14mm f/2.8 PRO (micro-four-thirds) lens – but the RAW ORF files were reprocessed using RawTherapee for better tone control, the results interpolated to generate 1500 frames (1 minute at 25fps) using a custom Julia script and merged with ffmpeg.

The audio is a minute of the T-in-the-Park festival recorded from a mile away with vocals added by sheep in nearby fields. A quick frequency analysis in Audacity shows the thumping bass peaks at around 58Hz (A1)…

T-in-the-Park festival from a mile away - frequencies peaking at 58Hz

T-in-the-Park festival from a mile away – frequencies peaking at 58Hz

Seeing the New Year in with style

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Over the course of New Year’s Eve I saw several aurora alerts. On checking, it was even visible as a pale grey band running above the neighbours’ houses, so I grabbed a camera and tripod and found a convenient path with a clear view to the north.

This was taken at a minute past midnight – some evidence of fireworks in Crieff with a wonderful aurora arcing over Strathearn.

Ringing-in the New Year with fireworks in Crieff from Auchterarder... with an aurora arching overhead.

Ringing-in the New Year with fireworks in Crieff from Auchterarder… with an aurora arching overhead.

Foggy Nights

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Continuing the theme of failed attempts to do astrophotography, I spent an evening out at Newport-on-Tay in Fife. There’s a neat little road leading down to a carpark with a tiny beach and rocky outcrop… with the interplay of artificial lights and huge blanket of fog, it needed photographing 🙂