Photographing Stars and the Night Sky with a Smartphone
You don't need expensive gear to capture stars, the Milky Way, and the Moon — just a smartphone camera. Here's how to set up Pro mode and shoot the night sky.
You can start without expensive gear
A dramatic photo of the Milky Way might suggest you need a specialized camera and pricey lenses, but modern smartphone cameras are surprisingly capable at night. A cratered moon or a sky full of bright stars is well within reach of a smartphone alone. The key isn't expensive equipment — it's understanding a few shooting principles and adjusting the settings by hand.
The main reason night-sky photos come out blurry is that the camera automatically picks a short shutter speed and fails to gather enough of the faint starlight. So switching from auto mode to "Pro mode" or "Manual mode" and extending the exposure time yourself is the first step toward night photography.
Before you shoot — eliminating shake is 80% of the job
Night-sky shots need the shutter open for anywhere from a few seconds to over ten, so handholding the phone will inevitably blur the stars into smears instead of sharp points. Mounting the phone firmly on a small tripod (even a mini tripod will do) is the single most important piece of gear.
Even the finger motion of pressing the shutter can introduce shake, so instead of tapping the screen directly, use a timer (a 2–3 second delay), a Bluetooth remote, or your earbuds' volume button as the shutter release for a noticeably sharper result.
Pro-mode settings — ISO, shutter speed, focus
There are three main values to adjust in Pro mode. "ISO" is sensitivity to light — raising it brightens the image in the dark but adds more noise (grain). For star photos, start somewhere around ISO 800–3200 and adjust from there. "Shutter speed (exposure time)" gathers more light the longer it runs, but too long and Earth's rotation smears stars from points into short streaks; on a typical smartphone lens, roughly 10–20 seconds keeps stars as points.
Don't trust autofocus for "focus" — set it manually to near infinity (∞). Zoom in on the brightest star or a distant light and nudge the focus slider until it resolves into the smallest, sharpest point. Balancing these three settings by feel is the core skill of smartphone star photography.
Moon shots and Milky Way shots need different settings
A bright full moon actually needs a shorter exposure. The Moon is a bright object reflecting sunlight, so a long exposure blows it out to pure white and erases all crater detail. Lower the ISO, shorten the shutter speed, or dial exposure down manually to bring out the Moon's surface relief.
The Milky Way and star-filled skies, on the other hand, need to gather as much light as possible, so the high ISO and long exposure described above are the way to go. Here, choosing a dark location with little light pollution matters more than any camera setting — the same phone captures vastly more stars from a dark rural sky than from downtown.
Finishing touches after the shot
Raw shots often look dark and a little flat. In a photo-editing app, nudge up brightness, contrast, and saturation, and correct the reddish or bluish color cast from light pollution (white balance) — the result can look far more striking than what you saw with your own eyes. If your phone can save RAW files, use it; it gives you much more room to adjust later.
Above all, night photography is a skill built through a few failed attempts. Rather than expecting a perfect Milky Way shot on your first try, start simple — capture tonight's moon and a constellation or two.