Showing posts with label milky way. Show all posts
Showing posts with label milky way. Show all posts

Tuesday, November 13, 2018

Snowy October Night Photography in Bodie


I've shot in Bodie at night nearly 40 times. The Bodie workshop season typically runs late May through mid-October when any storms tend to be convention-driven from daytime heat. So even on stormy days, the sky usually clears up at night. This time, in early October, a light storm not driven by daytime heat moved through, at first driving broken clouds to move through our shots of the Milky Way, then thickening to create trails of uneven clouds back-lit by green airglow.
Break in the Storm 
The Milky Way was mostly out for the first hour, then coming and going with streaks of clouds for about an hour, then then the clouds were translucent with intermittent snow showers. The snow never stuck to the ground much, but it was cool to have streaking through our shots. Fortunately everyone else was really into it too It was chilly with the wind blowing, but every shot was different, so we worked fast, and right through the end, when we could barely get out on time!
Snow Flurries in Bodie at Night
Moving Clouds Over 1937 Chevy
Stormy Night at the Lottie Johl House
Snow Falling Over the Standard Mill
Moving Clouds and Airglow
Main Street Bodie on a Stormy Night
Red Atmospheric GlowOne participant decided to leave in case the snow showers became more intense. His red brake lights were reflecting off of the low clouds above.

Friday, August 14, 2015

Perseid Meteor Shower 2015

2015-08-14-1439588880-6591901-StarStaX__46A8412_46A8817_lighten201.jpg

Comet Swift-Tuttle only passes the earth and circles the sun once every 133 years, but the earth passes through its trail of dust every year.  The debris field is large, so Perseid meteors may be seen on nights from July 17 through August 24.  The earth passes through the most dense portion of the comet's dust trail on the night of August 12-13, so that is when the peak, or maximum hourly rate of meteors, is seen.

On any given night, the sun sets as your position on the earth rotates away from the sun, then around midnight you rotate to a point directly opposite the sun. As the earth also moves in its orbit around the sun, your position on the earth is just starting to rotate to the side of the earth leading its movement through space, which collides with more debris. So meteor rates go up starting at midnight. At dawn you're approximately in the middle of the face of the earth as it flies through space, so meteor rates continue to climb slightly towards dawn. So the best bet in the evening is after midnight, in the last hours of darkness before the dawn's oncoming light brightens the sky.

This year I pursued the Perseids on the mornings of August 9, 11, 12 and 13. The best viewing was on the peak morning of the 13th, as expected. The composite photo above shows many of the meteors that my camera picked up over the course of nearly four hours.

I also assembled a time-lapse video that condenses several hours of meteor activity into seconds of video. You can see it on Vimeo here:


Perseid Meteor Shower 2015 from Jeff Sullivan on Vimeo.

Not everything that moves in the video are meteors; the meteors are the brief streaks of light, the slower ones are airplanes.  As you see the Milky Way and stars move, that is from the rotation of the earth. You can also see smoke from forest fires.

According to Wikipedia, Comet Swift–Tuttle has been described as "the single most dangerous object known to humanity". But don't worry, its next close encounter with the earth isn't expected until the year 4479. With a nucleus 26 kilometers across, if there were an impact, the force is estimated to be 27 times larger than the one which formed the Chicxulub crater beneath the Yucatán Peninsula in Mexico, which is believed to have caused the extinction the dinosaurs.

Doomsday preppers take note, you only have 2464 years to get ready!

Monday, August 10, 2015

The 2015 Perseid Meteor Shower is Underway



Comet Swift-Tuttle only passes the earth and circles the sun once every 133 years, but the earth passes through its trail of dust every year.  The debris field is large, so Perseid meteors may be seen on nights from July 17 through August 24.  The earth passes through the most dense portion of the comet's dust trail on the night of August 12-13, so that is when the peak, or maximum hourly rate of meteors, will be seen.  The rates will also be high throughout the August 11 - 14 period, so you can look for Perseid meteors any or all nights this week.

Below is a video that I assembled in 2009 from several nights photographing the Perseid meteor shower.  It is a time-lapse video that condenses several hours of meteor activity into seconds of video:


Not everything that moves in the video are meteors; the meteors are the brief streaks of light, the slower ones are airplanes.  As you see the Milky Way and stars move, that is from the rotation of the earth.

You can also see haze that is smoke from forest fires that year.  I may have similar challenges this year due to the fires currently raging during California's drought.  Already the photo I captured above from last Saturday night is darker than usual, due to smoke from a wildfire.

Saturday, May 02, 2015

Time-lapse of the Milky Way Rising in the Mojave Desert

In late April I was out camping in the desert, and I set an alarm to get up in the early morning hours to catch the Milky Way rise.  Around 1 am the first bits of it were just rising over the eastern horizon, so I set up two cameras, to catch both static and panning views of it.

The camera on a stationary tripod captured images that I could also process to create star trails images:

See the link to my star trails tutorial below
 Here's the time-lapse video captured on a second camera, using a sky-tracking, panning mount:


Digital Rights Management by Nimia

 Here's the time-lapse video captured on the stationary camera:


Digital Rights Management by Nimia

I set another alarm to wake up near sunrise to stop the time-lapses, and with one of the cameras I captured multiple shots to stitch together a panorama of the Milky Way, now forming a high arc in the sky.

Milky Way Over Joshua Trees, Panorama
It all turned out really well.  I should sleep at work more often!

Here's some introductory information on night photography techniques, in case you want to try yourself:
How to Capture Milky Way Images

Create Star Trails Images


I can show you more advanced techniques as well as these in more detail during night photography workshops in the "ghost town" of Bodie. We have five workshops scheduled in 2015, with dates available from May through October.  Several of the workshops also offer special escorted access into building interiors, which are not generally open to the public:
http://www.jeffsullivanphotography.com/blog/bodie-night-photography-workshops/



P.S. - Thanks in advance for lies, shares, +1s, comments, or any other honors that you choose to bestow on my blog posts!  With my book done, I'm trying to get a lot more active on updates to my blog, so you should see a lot more activity and updates here in the coming weeks and months.  I also have a "new"(er) blog, which I use to consolidate social media posts to: www.JeffSullivanPhotography.com.

Tuesday, April 22, 2014

Planning Milky Way Photography


Milky Way over Mono Lake Tufa Rock Formations
By now most of us have seen stunning Milky Way shots, but when we go out at night in the Northern Hemisphere we find that the Milky Way is not prominent in the sky all of the time and the moon often interferes with its visibility as well.  The best nights and times are fairly easy to anticipate, so let's review them.

The Milky Way is like a big, flat disk, with a fatter portion in the center, much like flying saucers are depicted.  At least arms spiral out from the center, and our solar system is partway out on one of these arms.  So while the disk of the Milky Way which we're in looks like a stripe of stars across the sky, when we're looking towards the larger center of the disk containing more stars, it's brighter.  Due to the tilt of the earth's rotational axis, that bright center of the Milky Way is highest in the sky in the weeks around the Summer solstice.

As for best viewing conditions, the dark sky days around the New Moon are best, when the light of the stars in the Milky Way seem brightest and offer the greatest contrast against the dark sky background.  There is an added complication as the position of the Milky Way and constellations change nightly, moving east to west further each night, until the constellations end up in the same place in the sky at the same time the following year.  The constellations moving all the way around us in 12 months to return to the same place in the sky is similar to the movement they make in 24 hours, so to complete the trip around in a 12 month year, each month the constellations rise 24 divided by 12 = 2 hours earlier, 30 minutes per week.  So Whatever time the Milky Way rose above your horizon last week, it'll be 30 minutes earlier this week and 2 hours earlier on the following month.


Fortunately you don't have to make a bunch of observations and calculate future times, there are apps to do the work for you.  There are a number of stargazing programs out there for both interpreting the current sky and anticipating how it'll look at some date and time in the future.  I use StarWalk, which provided the following display last week as the April 15 lunar eclipse was ending:


When you see that trident-shaped pattern of Scorpius coming up along the east to southeastern horizon, you know that the bright galactic center of the Milky Way is not far behind.  It would have been 2 hours later, 2:45 am, to reach this position in the sky four weeks earlier.

Now let's look at other months.  Note the time changes in the upper right corner as we go from early May to late May, as the moon rises roughly 90 minutes earlier after three weeks pass:



As we jump forward to dates close to the new moon dates in late June, July and August, rise time is no longer an issue as the Milky Way is already in the sky once the sky gets dark enough to see it.  So June, July and August are the most convenient months to shoot it, since you won't have to wait long after sunset to start shooting.  There's a term astronomical twilight to describe when the sky is fully dark, and a program such as The Photographer's Ephemeris can tell you when that is, both at night after the sun sets to the west and in the morning as the sun approaches to the east.



You'll notice that the Milky Way starts the night a little more vertical or "tilted up" in the sky each month.  It's also a little further along the southeast to southwest path that the galactic center takes in the sky, so you can use that knowledge to plan specific compositions.  The Galactic center also starts a little lower in the sky as you get further form the Summer solstice.

So using the new moon dates each year and a program like StarWalk, you adjust the date and time to pre-visualize what the sky looks like and determine approximately how many compositions featuring your favorite natural or man-made landmarks will look.

For more information on how to shoot the Milky Way once it's in the sky in front of you, read my prior blog post: How to Take Milky Way Photos.

To take the concept even further, you can capture sequential photos of the Milky Way and convert them into a time-lapse video like this!

Thursday, August 15, 2013

Perseid Meteor Shower 2013

Perseid Meteor Shower August 2013:

Don't watch in this tiny window though... start it, then click "watch on YouTube" at the bottom, then the little gear icon to make it go 1080p or 720p HD, then click on the icon to make it go full screen.  Enjoy!

I have a copy on Vimeo as well in case you might like to compare the two:


Perseid Meteor Shower 2013 from Jeff Sullivan on Vimeo.

Watch this in 720P or 1080P HD resolution. Over six minutes of footage from recent nights in 2013 during the Perseid Meteor Shower. The slower, mostly horizontal lights are airplanes. The brief flashes of mostly vertical streaks are the meteors (a few slower ones are satellites). Many meteors are faint, so you'll only see most of them if you follow the instructions above and change the viewing resolution to HD and expand the video full screen.
For the soundtrack, the timelapse video of the Perseid meteor shower is set to the InFiction String Remix of David Bowie's "Let's Dance", as featured in the recent Kia commercial (used with permission).

All images © 2013 Jeff Sullivan. To license Perseid meteor shower or other time-lapse footage, please contact me. All unauthorized uses will be pursued.

Wednesday, June 12, 2013

Milky Way Photography Workshop

Milky Way Reflection and meteor at Topaz Lake on the California/Nevada border, 2013
The best time to view the Milky Way in the Northern Hemisphere is close to the Summer solstice June 21, which is coming up fast. My best workshops for capturing the Milky Way will be June 14 and June 29 in Bodie State Historic Park:
http://activesole.blogspot.com/p/bodie-night-photography-workshops-2013.html

I still have a couple of spaces left in each session. The June 29 date may be the better of the two for Milky Way shots, since The moon rises late, so we'll shoot mostly under a dark starry night sky.  As an added bonus, fellow astrophotographer Steven Christenson will be co-leading this one.  We've both won awards for our photography in the Astronomy Photographer of the Year contest conducted by the Royal Observatory, Greenwich in London (the observatory is home of GMT, Greenwich Mean Time, and all GPS coordinates in the world are defined relative to their site).  June 29 is also the same date as the Google+ 2 year anniversary photowalks, so we may offer a free photowalk in the eastern Sierra earlier that day.  Contact me if you'd like to join us!

Milky Way Reflecting, and Eta Aquarid Meteor?Milky WayStargazing - Winning Image, People and Space CategoryPerseid Meteor Over Bristlecone PineSummer Milky WayMilky Way Over Big Sur
Meteor and Milky Way Over Banner PeakMilky Way Over The Sierra CrestMilky Way Over SoyamajeMilky Way Over Bristlecone PineMilky Way Over Mine RuinsStars Over Star Dust
Arch and StarsAlien TerrainMilky Way Over Mono LakeMilky Way Over Mono Lake Tufa 4Milky Way and Mono Lake Tufa Light PaintingMilky Way and Light Painting Mono Lake Tufa
Other WorldlyMilky Way Over Sawtooth RidgeMeteor and Milky Way over the Sierra NevadaPerseid Meteors over Bristlecone PinesLife From the StarsMeteor Over the Salt Flats
Milky Way, a set on Flickr.

Friday, August 05, 2011

Perseid Meteor Showers in August


It's that time of the year again! The annual Perseid Meteor Shower is underway. This year the peak nights of the shower will coincide with a full moon. This will obscure all but the brightest meteors, but there are still some decent opportunities for photography. Try early morning hours over the next few nights, after the moon has set. Even when the moon is in the sky you can shoot North-facing shots to face away from the moon and capture the brightest meteors, as well as star trails around the North Star, Polaris.

The meteors will appear to come from the radiant constellation Perseus, not far from Cassiopeia (a giant W you can spot more or less opposite the North Star from the Big Dipper). Get out someplace dark and clear, and enjoy the show! Best viewing hours are 11pm - 4:30am as the Eastern half of your sky rotates around to the leading side of the earth as we hurtle through space at 69,360 MPH around the sun (574,585 MPH relative to the Milky Way, another 1,339,200 MPH relative to other galaxies).

The moon sets at 11:30pm tonight, then roughly another hour later each night, so get outside in the early morning hours and watch the show, and capture star shots while the stars remain bright in the moonless sky.

Read down a few posts on my blog to see tips on capturing Milky Way or star trails photos. To maximize your odds of capturing some bright meteors, simply trigger your exposures as fast as your camera will go. I use an external "intervalometer" timer/trigger to start the next exposure one second after the previous one. By capturing dozens or hundreds of exposures in a row, you can capture many meteors over the course of many minutes or hours.

The photo at the top of this blog entry is a link to a whole album of Perseid Meteor Shower photos from past years. Go check them out for some inspiration or ideas!

Wednesday, May 25, 2011

How to Take Milky Way Photos

Bodie's Standard Mill
Milky Way over Bodie's Standard Mill
Many digital cameras these days can do surprisingly well at capturing images at night. Their sensors are more sensitive than your eyes, especially at capturing color at night.

Photography has always involved multiple steps, with exposure being only one part of the equation. In the days of film, the darkroom enabled additional influence to be applied during development, and then again during printing. Unless you were using a Polaroid camera, there was no such thing as "straight out of the camera." Maybe you trusted someone in a drug store to do your developing and printing for you, but that wasn't an optimal situation and that certainly doesn't mean that no adjustments were made. For the most part, the entire concept of "straight out of the camera" is a myth that is best set aside as soon and as thoroughly as possible.

Out of this World
Milky Way over Mono Lake tufa formations
Today with digital cameras your darkroom is on a computer, implemented in software. Milky Way shots are a great example of images that you won't get the most out of until you get in the habit of spending 5 minutes in your digital darkroom to complete the photographic process.

If you find a dark place outdoors to shoot and you can make out stars and the lighter, more dense band of the Milky Way, a little postprocessing can get you a lot further. As with my previous blog post you need to shoot on a tripod, using manual aperture and manual focus. Having your long exposure noise reduction turned off is not critical since we're dealing with single exposures for Milky Way shots.

Alien Terrain (vertical) Shoot with your widest focal length lens to minimize star movement in the field of view, have it opened to its widest aperture to minimize exposure time. You may still have little enough light that you shoot at the longest exposure time (generally 30 seconds) or you may need to shoot in "bulb" mode for a longer time in order to get enough light. Always shoot in RAW mode so you have far more adjustment capability in post-processing software.

Shoot near the date of a new moon, so there is as little light pollution as possible. The last thing you need to know, probably the most important thing during planning your shot, is how to predict when the most intricate, dense, bright center of the Milky Way is in the night sky! In Summer the sun is up roughly 2/3 of every day, but the Milky Way crosses the sky in the night. The center of the Milky Way is towards the constellation Sagittarius. You can look up the dates when Sagittarius is high in the sky, and that's when the Milky Way is most intense: http://homepage.ntlworld.com/mjpowell/Astro/Sgr/Find-Sagittarius.htm

In simple terms, it highest around midnight around July 22, two hours later per month earlier (2am in May), two hours earlier per month later (10pm in August). So really your best shooting will be on days near the new moon dates, and preferably within 7 weeks or so of July 22.

So lets assume you go out on the right night, shoot south towards Sagittarius, capture a RAW file with some stars showing, and maybe you can barely make out the bright stripe of the Milky Way and its slightly more dense center.

Well, if you were in a darkroom... how do you lighten the Milky Way while keeping the background sky dark? The simple answer is dodge and burn... selectively darken some areas while lightening others!

Southern California Night Sky In +Adobe Photoshop Lightroom (download a 30 day trial if you don't have it already, AFTER you collect some images to process) use the paintbrush tool (under the Develop module) to select and lighten the area around the Milky Way. Use the paintbrush tool to darken the sky everywhere else (this makes both the Milky Way and the stars pop).

To do even better, you can also increase contrast while performing these functions, further darkening background light levels, including noise. Adjust exposure and brightness so the fainter stars in the Milky Way get brighter while background and noise gets dark. You can increase saturation slightly on the Milky Way, but increasing contrast has that effect already, so you might not need to.

Rocket Trail
NASA satellite launch over the California Coast
Don't worry too much about how much noise your camera produces... after you adjust contrast and brightness, just crank up the noise reduction. After all, there isn't generally much detail to lose by doing that. In Lightroom for dark, noisy photos I try to max out noise reduction at 25 or maybe 30, but lately for night skies I've been going into the 60s.

Lightroom can also selectively adjust saturation and brightness of individual colors. If you shoot too close to sunset and "blue hour", or during a too-bright moon that is too full (and creating blue night sky), it can be handy to darken a blueish background sky to help separate that from the stars (just did that on a star trails shot). On the other hand for dark new moon skies, like you should have if you're planning ahead for Milky Way shooting, there is little or no light scattering turning the sky blue. A lot of the Milky Way stars have a slight blue tint though, so selectively raising brightness of blue can help separate them from dark background and any noise.

Perseid Meteor Shower 2015
Perseid meteor shower in the Mojave Desert
It's a balancing act between white balance, adjusting individual colors, and tweaking the brightness and especially contrast of the area the Milky Way covers, but you can find a reasonable compromise pretty quickly. Once you do fairly well adjusting one shot, Lightroom enables you to copy your develop settings and apply them to additional photos.

There are other subtle considerations of course, especially for special situations such as meteor showers, but this will get you off to a great start!

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Milky Way Arch Over Standard Mill
Milky Way arch panorama
If you'd like a little extra help, I lead one night photography workshops in the Wild West "ghost town" of Bodie.  For more practice, you can join me for a longer tour of Yosemite, Death Valley or the Eastern Sierra.

In many cases I offer a visit to Bodie adjacent to one of those longer workshops, so you can shoot in Bodie to start or end your trip.

If you're looking for dark places to try night photography on your own, consider anywhere away from metropolitan areas. I identify over 300 great locations for landscape photography in my new 320-page book, "Photographing California Vol. 2 - South", pictured below.

For night photography in California, focus on locations in the Southern California desert from Anza-Borrego State Park through Joshua Tree National Park and Mojave Preserve to Death Valley National Park, or on the Eastern Sierra region.

I offer author-signed copies on my Web site: www.JeffSullivanPhotography.com