Photographer Eric Brummel has created a stunning time-lapse of the Milky Way. Time-lapses of the Milky Way are not rare, but Eric has turned convention on its head. Instead of the Milky Way moving across the night sky, it’s the Earth that’s in motion.
Welcome to Saturn, as you’ve probably never seen it. It’s always awe-inspiring to see the clockwork motion of the heavens, transpire in real time. In a slow motion Universe, occultations give us the chance to see the cosmos pull off a celestial hat-trick. This can appear as a split second-type of event—such as when the Moon, a planet or an asteroid winks out a distant star—or transpire as a leisurely affair as the Moon covers, then uncovers the disk of a planet.
An astrophotographer in California has captured images of Elon Musk’s Tesla Roadster on its journey around our Sun. In the early morning of February 9th, Rogelio Bernal Andreo captured images of the Roadster as it appeared just above the horizon. To get the images, Andreo made use of an impressive arsenal of technological tools.
Andreo knew that photographing the Roadster would be a challenge, since it was over a million miles away at the time. But he has the experience and equipment to pull it off. The first task was to determine where the Tesla would be in the sky. Luckily, NASA’s JPL creates lists of coordinates for objects in the sky, called ephemerides. Andreo found the ephemeris for Starman and the Roadster, and it showed that the pair would be in the Hydra constellation, and that they would be only about 20 degrees above the horizon. That’s a challenge, because it means photographing through more atmospheric density.
However, the Roadster and its driver would be bright enough to do it. As Andreo says in his blog, “The ephemeris from the JPL also indicated that the Roadster’s brightness would be at magnitude 17.5, and I knew that’s perfectly achievable.” So he gathered his gear, hopped in his vehicle, and went for it.
Andreo’s destination was the Monte Bello Open Space Preserve, a controlled-access area for which he has a night-time use permit. This area is kind of close to the San Francisco Bay Area, so the sky is a little bright for astrophotography, but since the Roadster has a magnitude of 17.5, he thought it was doable. Plus, it’s a short drive from his home.
Once he arrived there, he set up his impressive array of gear: dual telescopes and cameras, along with a tracking telescope and computers running specialized software. Andreo explains it best:
“Let me give you a brief description of my gear – also the one I use for most of my deep-sky images. I have a dual telescope system: two identical telescopes and cameras in parallel, shooting simultaneously at the very same area of the sky – same FOV, save a few pixels. The telescopes are Takahashi FSQ106EDX. Their aperture is 106mm (about 4″) and they give you a native 530mm focal length at f/5. The cameras are SBIG STL11k monochrome CCD cameras, one of the most legendary full-frame CCD cameras for astronomy (not the best one today, mind you, but still pretty decent). All this gear sits on a Takahashi EM-400 mount, the beast that will move it at hair-thin precision during the long exposures. I brought the temperature of the CCD sensors to -20C degrees (-4F) using the CCD’s internal cooling system.”
CCD’s with internal cooling systems. Very impressive!
Andreo uses a specialized focusing system to get his images. He uses focusers from Robofocus and precision focusing software called FocusMax. He also uses a third, smaller telescope called an autoguider. It focuses on a single star in the Field of View and follows it religiously. When that star moves, the whole rig moves. As Andreo says on his blog, “Autoguiding provides a much better mount movement than tracking, which is leaving up to the mount to blindly “follow” the sky. By actually “following” a star, we can make sure there’ll be no trails whether our exposures are 2 or 30 minutes long.”
Once he was all set up, there was time pressure. The Roadster would only be above the horizon for a short time and the Moon was coming up and threatening to wash out the sky. Andreo got going, but his first shots showed nothing.
Andreo felt that once he got home and could process the images properly, the Tesla Roadster and its driver would be somewhere in his images. He kept taking pictures until about 5 AM. Cold and tired, he finally packed up his gear and went home.
“…no matter what I did, I could not find the Roadster.” Astrophotographer Rogelio Bernal Andreo
After some sleep, he began working with his images. “After a few hours of sleep, I started playing with the data and no matter what I did, I could not find the Roadster. I kept checking the coordinates, nothing made sense. So I decided to try again. The only difference would be that this time the Moon would rise around 3:30am, so I could try star imaging at 2:30am and get one hour of Moon-free skies, maybe that would help.”
So Andreo set out to capture the Roadster again. The next night, at the same location, he set up his gear again. But this time, some clouds rolled in, and Andreo got discouraged. He stayed to wait for the sky to improve, but it didn’t. By about 4 AM he packed up and headed home.
After a nap, he went over his photos, but still couldn’t find the Roadster. It was a puzzle, because he knew the Roadster’s coordinates. Andreo is no rookie, his photos have been published many times in Astronomy Magazine, Sky and Telescope, National Geographic, and other places. His work has also been chosen as NASA’s APOD (Astronomy Picture of the Day) more than 50 times. So when he can’t find something in his images that should be there, it’s puzzling.
Then he had an A-HA! moment:
“Then it hit me!! When I created the ephemeris from the JPL’s website, I did not enter my coordinates!! I went with the default, whatever that might be! Since the Roadster is still fairly close to us, parallax is significant, meaning, different locations on Earth will see Starman at slightly different coordinates. I quickly recalculate, get the new coordinates, go to my images and thanks to the wide field captured by my telescopes… boom!! There it was!! Impossible to miss!! It had been right there all along, I just never noticed!”
Andreo is clearly a dedicated astrophotographer, and this is a neat victory for him. He deserves a tip of the hat from space fans. Why not check out his website—his gallery is amazing!—and share a comment with him.
Always on the lookout for interesting events in the skies, astrophotographer Thierry Legault has captured an incredible video of SpaceX’s Dragon capsule traveling through space just 20 minutes after it launched from Kennedy Space Center on June 3, 2017.
“You can see the Dragon, the second stage of the Falcon 9 rocket, and solar panel covers,” Legault told Universe Today via email, “plus a nice surprise I discovered during processing: several fast ejections of material, certainly thrusters firing!”
Legault captured at least 6 ejections of material during the passage over his location in Tours, France. The three brightest are highlighted at the end of this video. He used a Sony Alpha 7S with a 200mm lens.
So, what you’re seeing is the Dragon traveling through the background of stars. Legault hand-tracked the Dragon, so even though it appears as stationary (with a few bumps here and there) and objects are zooming past, the capsule is in fact moving at close to 17,500 mph (28,000 km/h). This was taken a just few minutes after the capsule separated from the Falcon nine upper stage and jettisoned the covers on the solar panels, so all the individual bright ‘dots’ seen here were still near each other, moving together in Earth orbit.
This Dragon is now docked at the International Space Station, as the launch was the CRS-11 (11 of 12 planned Commercial Resupply Services for SpaceX.) This was the first time that a Dragon spacecraft was reused, and it brought supplies and science experiments to the ISS. As SpaceX has now done several times, the first stage booster landed back at KSC. This was also the 100th launch from historic pad 39A. Read more about the launch and mission here.
This isn’t the first time Legault has captured the Dragon in flight; he also shot footage of Dragon on its way to the ISS in April of 2014. Recently, he also was able to take multiple images of the ISS passing in front of the Moon:
Thanks to Thierry for sharing his footage and images with Universe Today. Keep track of his amazing work at his website.
An Eta Aquarid meteor captured on video by astrophotographer Justin Ng shows an amazing explodingred meteor and what is known as a persistent train — what remains of a meteor fireball in the upper atmosphere as winds twist and swirl the expanding debris.
The meteor pierced through the clouds and the vaporized “remains” of the fireball persisted for over 10 minutes, Justin said. It lasts just a few seconds in the time-lapse.
Here’s the video:
Justin took this footage during an astrophotography tour to Mount Bromo in Indonesia, where he saw several Eta Aquarid meteors. The red, explody meteor occurred at around 4:16 am,local time. The Small Magellanic Cloud is also visible just above the horizon on the left.
Eta Aquarid meteor piercing through cloud and left behind a red smoke trail that lasted for over 10mins. Taken in Mt. Bromo 8hrs ago. pic.twitter.com/WtFl9TGRbj
Persistent trains occur when a meteoroid blasts through the air, ionizes gases in our atmosphere. Until recently, these have been difficult to study because they are rather elusive. But lately, with the widespread availability of ultra-fast lenses and highly sensitive cameras, capturing these trains is becoming more common, much to the delight of astrophotography fans!
Mount Bromo, 2,329 meters (7600 ft.) high is an active volcano in East Java, Indonesia.
What did you do during your summer this year? Award-winning astrophotographer Damian Peach spent much of his 2016 summer capturing incredibly clear images of Mars during opposition, when the Red Planet was closest to Earth. Peach has now compiled a wonderful “rotating planet” movie of images taken between June 4th – 18th, 2016, showing amazing detail of the planet.
At its closest point this year, Mars was about 46.8 million miles (75.3 million kilometers) from Earth.
Peach has said this summer held “excellent seeing,” both from his home in the UK and from a photography trip to Barbados. He even captured a fleeting localized dust storm on Mars during mid-June over Mare Erythraeum, one of the prominent dark areas on the planet that were once thought to be seas. In the image below of the dust storm, Peach also pointed out the “linear cloud streak in the southern hemisphere – clearly those Martian flying saucer pilots have been having fun!”
What is a treasure? A pirate’s hoard of gold coins safely locked up in a chest would certainly fit. But would you say that something is a treasure when it’s freely available to anyone who wants to take the time? Seems unlikely, doesn’t it. Yet you may change your mind once you take in André van der Hoeven’s book “Treasures of the Universe – Amateur and Professional Visions of the Cosmos”. Within it are striking images that display the natural wealth and beauty that constantly surrounds us and that no chest could ever lock up.
Astrophotography at its core is quite simple; at night, take a camera outside, point the lens up and snap the shutter release. Anyone can do it. However, putting reason to what one captures in the lens is quite a different story. And to add further complexity, consider combining your captured image with someone else’s who’s taken a picture while on another continent or while in space. Last, after taking thousands of images, identify those with artistic as well as scientific merit.
Yes, this is a more complete way of considering astrophotography. And many people are partaking in it. So here’s a book that’s selling its version of night sky images. For anyone who enjoys the night skies, there’s a lot to like. The contents are divided into four groups; galaxies, clusters, nebulae and our solar system. Most images from beyond our solar system are well known, whether of entries in the Messier catalogue or the New General Catalogue (NGC). A few are of farther afield, such as from the Hubble eXtreme Deep Field.
The image presentation is often on a double page spread and has complementary text adjoining. The text provides the scientific merit usually by identifying how the subject of the image fits into the scheme of things, such as the supernova SN2011fe in the Galactic Wheel. The text also provides the photographic particulars, such as that of the Andromeda galaxy that resulted from the compilation of 11 000 separate snapshots. The selection of images makes for a fairly well known set and won’t lead to surprises. Given this, van der Hoeven’s book is a comfortable, complete treatise of his astrophotography.
Now views of space are everywhere on the Internet and other publications so you’re probably wondering “What’s this book bring to the table?” so to speak. After all, a lot of its images come from other government sources like the Hubble space telescope. That’s data free for anyone to peruse. And, the subject of the images, the universe, remains in place for anyone else to capture if they so desire. Both of these are true, but what isn’t obvious is the time and effort to create the images as well as the talent to engender a sense of artistry. Can you imagine the time to compile 11,000 pictures into one? Or spending over 27 night-time hours to collect data for one image? That’s the sort of time and effort involved.
Measuring artistry is another skill altogether and one of which I lay no great claim. Yet, looking at the composition of the spread of the Wizard Nebula warmly shrouded by a complex hydrogen cloud makes me pause. Yes, I know I’m looking at the result of the random arrangement of matter and energy. But there’s something just so darn compelling about the shapes and textures that makes me wonder. And I realize my wonder comes from the skill of the author in composing the shape. I’m impressed. This doesn’t mean that the author has claimed any predominance. Rather, throughout the book he provides encouragement and incitements for bigger and better. Whether it calls for astrophotography from the next-generation telescopes or for beginner astrophotographers to develop their skill, it pushes for more and better imagery. Yes, this book is more than just pretty pictures. It’s also instructive and telling. Another unusual aspect is that the book was funded through a Kickstarter.
As with a few other marvelous books with vistas of the universe, this book’s pages are in in a wide format (almost landscape size). The pages have matte-black background with clear white font text. The text for each image is usually clear, except for some with underlying images of light colours. These are few. For the selection of images, I find ones of galaxies and nebulae most rewarding. Finding shapes and patterns from clusters is more challenging.
And, after seeing the depth and expanse of the universe, I find the images from our solar system almost ordinary, though I know I shouldn’t. I like the section at the book’s end that describes the image details including the telescope, the camera and the exposures for various filters. Perhaps I can use these to dabble at my own artistry. I also appreciate the credits that list all the data sources and perhaps the people who processed the data, though these aren’t always obvious. I don’t like that the book had to eventually come to an end. I could have kept looking at many more pages.
Treasures are a measure of worth. For those who like gold, a pirate’s chest may be the ultimate high. For those who are drawn to the night, to the limitlessness of space, then the jewels of the night sky are the only ones worth viewing. For you who like the night, let André van der Hoeven’s book “Treasures of the Universe – Amateur and Professional Visions of the Cosmos” spirit you away to a viewing pleasure. With it in your hands you will hold more than any pirate’s chest could ever contain.
Here’s an amazing photograph of the Milky Way by astrophotographer Matt Dieterich. He took the image a step further, however, and identified all the constellations you can see close to the Milky Way.
You’ll want to click this image and see a bigger version.
Right down near the horizon is Sagittarius – it looks like a teapot, with the Milky Way rising like steam from its spout. Many of the brightest, most spectacular nebulae in the night sky are located around this constellation: the Lagoon Nebula, Trifid Nebula, and the Omega Nebula. The 4 million solar mass supermassive black hole located at the center of the Milky Way is located in this region too.
Further up the Milky Way you can see the three constellations that form the Summer Triangle: Lyra, Cygnus and Aquila.
And right on the left side of the photograph is Cassiopeia, with its familiar “W” shape.
In the lower-right of the image are a few constellations from the zodiac: Scorpio, Libra and Virgo. And if you look closely you can see Saturn making its way across the sky, in the plane of the ecliptic.
If you’re interested in learning about the night sky, I highly recommend you take your time and learn your constellations. These are your wayposts, navigational aides that help you find your way across the Universe, to the wonders right there in the sky above you.
Matt used a Nikon D750 camera with a 24mm f/1.4 lens. The whole image is made up of 20 separate exposures of 15 seconds each, stitched together to make this amazing mosaic. He captured this image from Glacier National Park in Northern Montana.
Here’s the original version, without the highlighted constellations. Once again, you’ll want to click to see the full resolution goodness.
A big thanks to Matt for contributing this picture to the Universe Today Flickr pool. If you’re an astrophotographer, you’ll be in good company, with thousands of other photographers who share their pictures. We’ve got more than 33,000 pictures there now.