Above you can see a comparison – on the left is an image taken with 150 2nd direct exposure, where the stars are tracking and overexposed, and on the right is an image taken with a 10 2nd direct exposure, that has crisp, sharp stars.Though there is no fast and difficult guideline on settings, here are some tips to find a setting that works for you. Image 3 of 7(Image credit: Adobe)Step 3Duplicate one of the layers and save as a new layer. You might want to call this Base Layer for ease of reference Image 4 of 7(Image credit: Adobe)Step 4Select the rest of the layers and group these to a brand-new folder. Image 6 of 7(Image credit: Adobe)Step 6Finally, invert the mask. Image 7 of 7(Image credit: Matthew Browne)Final imageThe completed image stack of our ISS night sky shotOnce youre delighted that your image stack is complete, you might want to continue modifying to fix things like color toning or dodging and burning your foreground.
The ISS is a lab orbiting the Earth 400 km above its surface, at a speed of over 27,000 km per hour. To put that huge number in some point of view, thats around 8 km/s and a complete orbit of the Earth takes just 90 minutes. In spite of all this, the International Space Station is not all that tough to photograph – you simply need to do a little bit of preparation, and have a standard understanding of astrophotography.The ISS is typically visible from Earth as a point of light slowly and silently traversing the sky. In the hours after sunset or before sunrise, the Station remains lit by the sun while the Earth is still in darkness. Given that the course of the ISS can be computed, this suggests that with some preparation, the ideal equipment and clear skies, it can be a striking subject to photo. Heres how to picture the ISS – from preparing to shoot to editing.How to discover the ISSFortunately, you dont require a degree in astrophysics to calculate where the ISS may take a trip on a particular night – numerous websites do all the hard work for you.See a Satellite TonightOne of our preferred choices is James Darpinians See A Satellite Tonight, a really creative website which permits you to pick an area and it will not only show you a Google Earth view showing how the ISS will look from space, however a Google Street View with a simulation of how the ISS (and lots of other satellites) will look as they pass overhead. As you can see from the image below, it can be a truly useful tool for picturing your compositions ahead of time.(Image credit: See a Satellite Tonight)Heavens AboveHeavens Above is arguably the finest known and most comprehensive website for tracking the ISS. It has a slightly dated user interface, but its still relatively easy to use. On the sites landing page, click on Change your observing place and select where youll be photographing from. Then, back on the homepage, click ISS under 10-day predictions. If there are any visible passes at your place, the website will inform you the times and directions.Spot the StationNASAs own Spot The Station is an option which offers a simpler interface and a live tracking function, which lets you see where the station is presently drifting above the earth. It likewise has a helpful alert service, that will send you either texts or emails when the station it visible from your area. What devices do you need to photo the ISS?Photographing the ISS does not need professional or expensive equipment. The ISS is a bright point of light in the sky – any lens will be able to catch it, however the much faster the much better. Therefore at the bare minimum you will require: A DSLR or mirrorless electronic camera with complete manual control. If you wish to know the difference in between the two, we have a guide to DSLR vs Mirrorless electronic cameras. A lens at a suitable focal length, to record an excellent trail youll need a large angle lens.A tripod. The sturdier the better.Some type of shutter release. This can be a cable plugged into your cam or a remote control that allows you to capture images without physically touching your electronic camera. For the sharpest possible image, this is a crucial gadget to have in your arsenal.A dew heater. These are economical USB-powered gadgets that prevent wetness – ice, fog or dew – from forming on the front of your lens during your shoot. You are normally most likely to encounter this on longer shoots, such as catching star routes, however you d be stunned how rapidly dew can form. If youre searching for more guidance on this, we have a full article on lens heating systems for astrophotography.Planning the shotAnglesFirst, consider the angle of the ISS pass. You might consider a wide angle shot revealing the arc juxtaposed with a fascinating foreground if its arcing close to the horizon. If the ISS passes directly overhead, you might wish to capture the ISS as it satisfies the horizon, creating a vertical band of light in the completed image. Consider an intriguing foreground for the image. If youre catching a wide angle arc, what can you include to anchor the image? If its an overhead pass, can you line up the course of the ISS with a foreground interest?(Image credit: Matthew Browne)WeatherA fully clear night is perfect, however you can still attempt an ISS photo with patchy or light clouds. In truth the bright light passing in and out of areas of cloud can create a fascinating image, as seen above.LocationsIf youre trying to find inspiration for photography places near you, or ISS compositions to attempt out, then there are a couple of places to look. PhotoHound is a site for photographers to share info on attractive image areas, how to arrive and in what conditions (consisting of astrophotography). Find it on Instagram and look at the most recent images if you have a particular place in mind. You do not desire to travel to a shooting location to discover the angle you desire isnt available or the view is obstructed somehow. Google Maps has excellent protection on Street View which might allow you to aesthetically compose your shot and do area hunting without leaving the home. Come to your area early and take lots of test shots to guarantee your composition will work. Youll wish to have your settings all set to go when the ISS makes a look. Settings for photographing the ISSTo photograph the ISS, youll require to record a series of images – usually 8 to 20 seconds each depending on the focal length – which can be combined later on to become a single streak of light. Its a comparable process to photographing star trails. A flyover of the ISS can last a number of minutes, so you might believe its sufficient to leave the shutter open throughout – this is a rookie mistake! There are 2 factors to avoid this method. A capture of several minutes will almost certainly be overexposed. If there are any stars in your image these too will begin to develop a light trail.Stars at various direct exposures: 150 seconds on the left, 10 seconds on the. (Image credit: Matthew Browne)When you produce your test shots, examine your stars to make sure that they stay as sharp points of light. Above you can see a contrast – on the left is an image taken with 150 second direct exposure, where the stars are trailing and overexposed, and on the right is an image taken with a 10 2nd exposure, that has crisp, sharp stars.Though there is no quick and tough rule on settings, here are some guidelines to find a setting that works for you. Set your camera to manual mode which provides you full control over each setting.Aperture needs to be as low a number as possible so your camera collects as much light as it can. We typically suggest shooting astro scenes at f/2.8 or f/1.8, if your lens depends on the task.Shutter speed need to be as long as possible without stars trailing. This is generally 8 to 20 seconds.ISO depends upon your environment. In a vibrantly lit area such as a cityscape or if the moon is up, it could be as low as 400. In rural, dark sky locations then it may need to be as high as 3200. Many modern cams will gladly contend greater ISOs with very little sound. If you are fretted about this, we have a guide to reducing noise in astrophotography.Make sure constant shooting is allowed, so your images are caught regularly during the shoot.Always shoot raw, it enables you to record better information and more dynamic variety from your cam sensing unit. It likewise offers you much more information to have fun with throughout the editing process.Editing your photos of the ISSWell done – youve captured an ISS pass! Your work isnt rather over yet, there is still the task of integrating these images into one utilizing a technique called stacking. Adobe Photoshop makes this easy. Other software is offered to blend ISS (and other star trail) images such as Starstax (Mac and Windows) and Startrails (Windows). Below is our detailed guide for the Photoshop method.Image 1 of 7(Image credit: Adobe photoshop)Step 1Open all the images as layers in Adobe Photoshop Image 2 of 7(Image credit: Adobe Photoshop)Step 2Select all the layers and set the mix mode to lighten. (Side note: If there were stars in your image, these too will have started to trail. If this is an appearance youre going for, then fantastic. Then checked out on.), if you d like sharp stars with the ISS path Image 3 of 7(Image credit: Adobe)Step 3Duplicate among the layers and save as a brand-new layer. You might wish to call this Base Layer for ease of recommendation Image 4 of 7(Image credit: Adobe)Step 4Select the remainder of the layers and group these to a new folder. You might want to call this ISS for ease of reference.Image 5 of 7(Image credit: Adobe)Step 5Add a layer mask to the folder. Click on this mask. Grab a black brush and paint onto the ISS trail. The ISS trail will be removed as you do this. Image 6 of 7(Image credit: Adobe)Step 6Finally, invert the mask. This is attained by best pressing and clicking the mask Cmd+i on Mac. Now, only the ISS path will now be overlaid onto your base image. Image 7 of 7(Image credit: Matthew Browne)Final imageThe finished image stack of our ISS night sky shotOnce youre happy that your image stack is complete, you might wish to continue editing to fix things like color toning or dodging and burning your foreground. You can obviously continue to edit it in Photoshop, or save it to process further using other image editors such as Lightroom or Luminar. Prior to editing, this image overexposed with a strong orange colour cast from street lighting hitting the clouds. To achieve the final modified, we applied some colour correction, contrast, plus some dodging and burning. (Image credit: Matthew Browne)The International Space Station is a amazing and reputable topic to picture. Equipped with these ideas, clear skies and a little persistence you can produce images with a genuine wow factor.
