Video Submissions

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Adrien Mauduit
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Joined: Thu Dec 15, 2016 10:58 pm

Re: Video Submissions

Postby Adrien Mauduit » Sat Apr 29, 2017 10:02 am


Credits: Adrien Mauduit

You are lying on a blanket on a clear summer night and gazing at the dark starry sky. You are trying to spot the big dipper, Andromeda, or maybe Orion. However you are noticing strange bright patches aligned in a band across the night sky and realize they are not stars: it is our home town, our own galaxy, the milky way. That’s how all star-gazing experiences, hobbies, but also the history of astronomy began: from naked eye observations thousands of years ago, to the finest and biggest telescopes today, capable of unravelling the most intriguing secrets of the universe. As the hobby or science grows and evolves, we always want to go deeper and zoom in. You are now seeing not only our galaxy, but billions of them!

With the first opus of the short film series ‘Galaxies’, I wanted to experiment and take the astro-timelapse technique to the next level. There are a lot of sumptuous short films and very technical time-lapses featuring the milky way, but I found very little variation in this field. Most of the time they show a wide-angle view of the milky way, albeit majestic, rising or setting against various foregrounds. This is the reason why I wanted to rethink the whole process, find different angles, get more detail. Why not zoom in? Why not consider other deep-sky objects like other galaxies? Why not show our very space home address and neighborhood in a very different way?

I started thinking about making time-lapse of deep-sky objects about three years ago when I bought my tracker. I would experiment and track the Andromeda galaxy moving in front of rocks, monuments, trees, behind northern lights. I extended the limits of wide-field astro-timelapse (10-35mm) to a more middle (50-85mm) and narrow-field (> 85mm). It gives a lot of new options and reveals the true beauty and detail of our galactic core fore example. 

The main canvas of the project is based on our galaxy and their neighbors (Andromeda, the Magellanic clouds..), but also a lot more deep-sky objects like nebulas, star clusters etc… Amateurs and professionals will certainly recognize a multitude of them like the North-American nebula, the Orion nebula, the Rosette nebula, the Carina nebula, the dark horse nebula, the Andromeda galaxy in different situations like photobombed by northern lights or moving behind the tree canopy, the majestic milky way core either rising or in very fine detail moving fleeting gently across the nigh sky… You will still find some wide-angle milky way scenes, because you just cannot pass on them!
My two favorite parts of the project (and the most technically difficult) were shooting the Andromeda galaxy in the aurorae for one, and shooting a scene of the Orion constellation along with its nebulae, including nature and the zodiacal lights for the other. The former was hard to realize because of my location at the time of shoot (Denmark) since we don’t get aurorae too often. I needed to find a calm night (no wind for tracking), with an aurora storm but not too bright either (so one can still see the detail in the galaxy). It also needs to be at that time year when Andromeda passes low on the horizon, coinciding with the space where northern lights would appear. It was the most technical time-lapse I have ever done so far, but the most rewarding! The latter was also difficult, but paid off incredibly well. My goal was to get the red of the emission nebulae in the region of Orion that would still be visible in single pictures of the time-lapse, since you cannot stack and bring out detail! I astro-modified my Canon 6D to get the shot, and included the beautiful zodiacal lights towards the west, and even got a surprise visitor (grey heron) if you can spot it!

I shot a various locations to get a variety of shots: Denmark (northern light, Andromeda, some milky way), Malawi (Milky way core and nebulas), France (star trails), Tenerife (Milky way core and wide-field), Vermont (wide field milky way) and Slovenia (milky way). Since I basically started this project a few years back when I began with astrophotography, some scenes still contain annoying flickering or weren’t as sharp as the ones I get now, but all in all I am truly amazed by the result and I really hope you can appreciate this new view on astro time-lapse. I should mention that this kind of technique demands a lot of work on thinking, preparing, executing and post-processing, and it took me about two years to achieve it.

Canon 6D (Baader modded), Sony a7rII, Sony a7s
Multiple lenses ranging from 10mm to 500mm
iOptron Skyguider tracker
Pre-processed in Lr and post-processed in Final Cut Pro X

Ian Regan

Re: Video Submissions

Postby Ian Regan » Tue May 16, 2017 7:42 pm

Voyager 2: An Appointment With Jupiter, King of the Planets
Click to play embedded YouTube video.

My restoration of a sequence captured by Voyager 2 as it bore down on the gas giant in May, 1979.
It has never been seen before in such high quality.

Posts: 36
Joined: Mon Apr 23, 2012 11:46 am

Persistent Meteor Train

Postby philhart » Sat May 20, 2017 1:30 am

Just discovered this in a timelapse sequence last month.. an exceptionally persistent meteor train which lasted around an hour and a half before the last remnants were overwhelmed by clouds and morning twilight. Captured looking south over Mount Glasgow (central Victoria, Australia) towards Ballarat on the morning of 8th April 2017.

Each frame here is 20 seconds at ISO3200 on a Canon 5D Mark IV with Samyang 35mm lens at f2.8. Pity about the clouds and Ballarat light pollution.


Adrien Mauduit
Posts: 33
Joined: Thu Dec 15, 2016 10:58 pm

Re: Video Submissions

Postby Adrien Mauduit » Fri May 26, 2017 6:05 pm

2017 Noctilucent clouds chasing season teaser

Credits: Adrien Mauduit

As the Earth continues its path on its elliptical orbit around the sun, high latitudes and higher mid-latitudes of the northern hemisphere are entering the midnight sun season. If you go too far up north, the sun never sets, but at lower latitude, like southern Scandinavia, the sun goes down just a few degrees under the horizon and lingers there for a few hours, gliding unnoticed from the north-west to the north-east.
This allows summer nights to remain in a constant twilight and it never gets dark enough to see the milky way or auroras for example.
However this situation, combined with some precise conditions, can give birth to one of the most intriguing and jaw-dropping shows on Earth: noctilucent clouds. While the Earth rotates far away from the sun in the summer, its mesosphere gets cooler, allowing the formation of tiny ice particles. These particle form the highest clouds on our planet (82km in the atmosphere) and wouldn't be visible if it wasn't for the bright nights!
See, the sun being from 0 to 6 degrees under the horizon can, with the help of tropospheric clouds, emit rays that illuminate this ice layer, making the viewer's night sky glow electric blue, yellow and orange!
The Noctilucent cloud (NLC) season roughly starts at the end of May and finishes at the end of July in Denmark. You can gaze upon them when the weather is clear and potentially all night, most likely towards the north as the Sun follows its course under the horizon, back-lighting the ice sheet.
As the 2017 NLC chasing season is about to kick off in Denmark, I assembled some of the best shots of the 2016 season in a 4K time-lapse video as a tribute, and also teaser for the 2017 season, in hope to encourage more and more people to go out and experience these mind-boggling displays.
All shots have been taken in Denmark in 2016 with Sony a7rII and Canon 70D.

Adrien Mauduit
Posts: 33
Joined: Thu Dec 15, 2016 10:58 pm

Re: Video Submissions

Postby Adrien Mauduit » Thu Jun 08, 2017 9:19 am

NightSky Ice Ocean - Closer to the noctilucent clouds

Credits: Adrien Mauduit

People and scientists have been eager to study NLC’s for a long time, without really being able to do so (or having the ressources/reasons to). That’s why they are conducting this type of program now, and that’s why they have enjoyed visionning my videos of NLC’s. As I was also trying to get ground-based footage of these intriguing clouds, I always wanted to get closer, using a longer focal length. Below 100mm, the clouds form a magnificent electric-blue glowing sheet against the night sky, which is in itself, something from another world. However, when you switch to longer focal lengths like 300mm or 500mm, you start noticing structures, shapes and behaviors that would totally go unnoticed with the naked eye. I could not believe what I was watching, as I edited the photos from the 500mm raw footage, probably because it had never extensively been done in this way in the past, but also because it reveals how complicated, delicate and sometimes violent NLC’s can actually be. I assume that is the reason why the scientists at PoSSUM got intersted in this kind of imagery, probably because it gave them a sneak peak at what they were going to encounter…
In this movie, almost exclusively shot at 500mm focal length, I assembled a series of 4K time-lapse sequences from the 2016 NLC season, all taken with my Sony a7rII and Canon 70D, and mostly Sigma 150-500mm APO f/5-6.3. I wanted to show that, depending on a lot of unknown conditions and factors, sometimes triggered by teleconnections hundred of kilometers away, NLCs are a genuine ocean of ice in the night sky, either developing gently into a smooth and uniform billowed sheet, or sometimes create large-scale tsunamis when two currents meet. Their wave-like patterns reminds a lot of those produced by water populating our seas or lakes, but who has ever seen an ocean of suspended ice particles in the air? Better yet, who has ever studied their mechanics and behavior, when it doesn’t precisely behave like anything else on Earth on such a large scale? Bands, whirls, pools, troughs, billows, net-like strutures, and blizzard moving on top of the stars like a ghostly veil, that’s a spectacle that more than one will surely enjoy watching up close!

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Science@NASA: Solar Minimum is Coming

Postby bystander » Wed Jun 28, 2017 3:49 pm

Solar Minimum is Coming
NASA Science News | 2017 Jun 27

Click to play embedded YouTube video.
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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