When August arrives, the sky treats us to a spectacle that never goes out of style: the Perseids. If you're going out with your phone, there are several tricks that make the difference between seeing a few shooting stars and enjoying a true meteor shower. Among them, one is surprisingly simple and effective: Use a red light on your phone to avoid losing your dark adaptation..
Besides that key, there are other factors worth paying attention to: from searching skies as dark and cloudless as possibleFrom preparing your Android device to locate the radiant subject, configuring the camera, setting up a tripod, and shooting in burst mode or with an intervalometer, you'll find a complete guide below, with practical tips, navigation through the settings, and useful apps for both viewing and photographing.
What are the Perseids and when are they best seen?
The Perseids are particles from the Swift-Tuttle comet that, upon entering the atmosphere, They burn and draw luminous furrowsEvery summer we cross that cloud of debris and the phenomenon extends approximately from mid-July to mid- or late August, with a peak of activity that usually occurs between the 11th and 13th.
In recent calendars, the period has ranged from around July 17 to August 24, peaking on the night of the 12th. A specific reference point has even been noted (approx. 22:25 PM peninsular time) as the time of greatest activity, although for practical purposes the most interesting thing is to observe during wide windows at night and in the early morning to accumulate more probabilities.
Under ideal conditions (dark skies, no clouds and no bright moon), the rate can reach between 100 and 200 meteors per hourIf the Moon is high and bright on the key date, you'll see fewer faint shooting stars, but the brighter ones will still appear, and enjoyment is guaranteed with good planning.
Remember that the radiant of the Perseids is in the constellation Perseus, towards the northeast of the sky. Even so, the meteors can cross any part of the celestial sphere, so The more sky you can encompass with your gaze or framing, the better.From the northern hemisphere, observation is much more favorable; position yourself in an open place, without trees or mountains blocking the horizon.
To optimize the location, it combines two tools: a light pollution map (such as Light Pollution Map) to locate very dark areas and the AEMET weather forecast (or your trusted service) to ensure clear skies; also check essential apps for traveling with your mobileThat alone multiplies your chances of success.
The trick that changes everything: red light mode and night vision
One thing that often ruins observations is looking at your phone with the bright white screen. Your eyes need... about 20–30 minutes to adapt to the darknessEvery time you are dazzled, you restart that process and lose sensitivity just when you need it most.
The solution is to activate a red filter or tint on the screen. Red affects the rods (the retinal cells responsible for low-light vision) less, so you can check information on your mobile phone and maintain your nighttime adaptationAs a bonus, you'll help respect your circadian rhythms and sleep better afterwards.
How to activate an equivalent mode on iPhone: Go to Settings > Accessibility > Display and text size > Color filters. Activate the switch, choose "Color Tint," and move "Hue" to the red end with "Intensity" at maximum. Also lower the overall brightness to avoid glare.
How to activate a red filter on Android: each layer changes the names, but the path is usually in Settings > Accessibility / Visual well-being / ScreenLook for sections like “Vision Enhancements,” “Color Filters,” “Screen Adjustment,” or similar. Activate the filter, select “Red Tint” (or adjust the tint to the reddish extreme), and reduce the brightness to the lowest comfortable level.
Avoid temptations like WhatsApp or social media: scrolling through clear images can be dazzling. If you need maps or astronomical apps, always use them. night mode or red tint active; you will notice that you continue to see the sky with the same sensitivity.
Maps and apps to know exactly where to look
To find the best night sky near you, the Light Pollution Map is a classic. It represents the intensity of artificial light with a color codeWhite/yellow for polluted areas; blue and black for dark skies. Zoom in, locate distant areas, check altitude, and cross-reference with the weather forecast. If you point the camera at mountainous areas, the sky is often clearer and more stable.
On Android, you have SkEye Perseids Astronomy Sky Map, an app focused on showing you where to point your phone to locate the radiant. If you notice that the sky map "dances" or doesn't follow your movements, calibrate the sensors by moving your phone in a figure-eight pattern until the tracking is smooth. the orientation is precise.
For iPhone, Classic Sky Map 2 offers a very comprehensive database of bodies and events. The interactive search mode for specific events requires the paid version, but if you want to go straight to what's happening that night, it's a worthwhile investment. fix the direction of gaze.
If you use Apple, Night Sky adds a highly polished AR mode, event notifications, and 3D models. On iOS and Android, Star Walk 2 will also show you the sky in real time; it features a "time machine" to simulate the sky at different dates and times, which helps to anticipate the position of the radiant and understand how the celestial vault rotates.
Android camera settings for capturing the meteor shower
For photography, apps with manual controls are your best friend. On Android, Camera FV-5 or the native camera app in Pro mode usually allow you to adjust ISO, exposure time, and manual focus. On iPhone, alternatives like ProCamera offer similar control. The important thing is being able to set the desired settings. stable and repeatable parameters.
Focus: Set it to infinity manually. Most professional apps have a focus control with a mountain icon or a slider with markings; move it to the extreme that corresponds to infinity, and if possible, Use focus magnification to confirm that a bright star appears sharp.
Exposure: Use long exposures. Many phones allow up to 30 seconds. In dark skies, 10–20 seconds will already produce well-defined meteor and star trails; if your phone goes up to 30 seconds, try it, but be careful that the sky doesn't "turn into daylight." The longer the exposure time and the higher the ISO, the greater the overall brightness, so balances both.
ISO: Start between 400 and 800. A low ISO reduces noise, but can leave the background very dark. Do tests on previous nights to learn your sensor's "clean limit." If the scene includes landscape, you may need to increase the ISO slightly so the ground has detail without overexposing it. excessive grain appears.
Aperture: On mobile phones, this is usually not adjustable, but choosing the right module/wide-angle lens can give you a brighter effective aperture (f/1.8, f/1.5, etc.). In general, a wide-angle lens covers a wider field of view and increases the chances of capturing a meteor, although sometimes its sensor It performs somewhat worse in terms of noise..
Timer and stability: Activate a time delay (2–5 s) and use a tripod. With long exposures, even a single touch of the screen can ruin the photo. A sturdy tripod and a secure phone holder are essential for this. everything remains still during the shot.
Intervalometer, burst mode, and remote trigger
An intervalometer allows you to program consecutive shots at a defined interval. It's ideal for this type of session because it automates the "shoot non-stop" while you focus on observing the sky. There are apps on Android that simulate an intervalometer; the downside is that, depending on the model, you could lose access to... advanced modes such as Expert RAW of some brands when using third-party apps.
If you want to keep things simple, shoot continuously by hand with a timer and use a Bluetooth remote shutter release. Many tripods include one, and you can also use your smartwatch, headphones with shutter control, or accessories like the S Pen on some GalaxyThe key is not to touch your phone during the exposure.
Burst mode is used to capture several photos in rapid succession. It doesn't replace long exposures, but it increases the chances of "catching" a bright meteor if you can't take long continuous shots. Combine short bursts with long, spaced-out shots to cover both scenarios.
Recommended settings sequence (and how to test it)
Before the big night, go out and practice for a couple of days. The goal is to arrive with a reliable recipe that you only have to repeat. A helpful starting point would be: wide angle, manual focus to infinity, exposure of 15–25 s, ISO 400–800, timer at 2 s, RAW mode activated if your mobile allows it.
Once you have your tripod set up and your framing ready (include some landscape if you'd like to provide context), take a series of test shots. Check the histogram or, if you don't have one, zoom in on the image to check for pinpoint stars, absence of camera shake, and controlled noiseAdjust ISO and time until you like the balance.
If you see star trails elongated by the Earth's rotation and you don't want that, reduce the exposure time (e.g., from 25 seconds to 15 seconds). Conversely, if you want the meteor to leave a wide trail, prioritize longer exposure times. Remember: in moonlit or light-polluted skies, lowering the exposure time or ISO helps. avoid “washed” skies.
When everything is ready, Automatic shooting mode with intervalometer or with constant series. The more photos, more options to capture multiple meteorsKeep the tripod in the same position all night if you plan to combine shots in post-production.
During the session: tricks that make all the difference
Avoid looking at white screens; always use the red filter. If you need to move around, carry a flashlight with red filter or night modeDon't shine your light in your colleagues' faces: you'll ruin their adjustment for half an hour.
Warm up the equipment slightly if there's humidity (a simple desiccant packet in the bag helps). Clean the lenses before you start so that any bright spots don't look like "phantom meteors." And, of course, comfortable and safe above allWarm clothing, water, some food, and an external battery.
If a passing cloud blocks your view, be patient: sometimes it clears and then a burst of activity surprises you. Maintain a flexible attitude; if the forecast predicted clouds in your area, consider a plan B with a different location than the one shown on the pollution map. also have a dark sky.
Post-production: the magic of combining shots
Capturing an "epic" photo with multiple meteor shower trails usually involves editing. If you've taken dozens or hundreds of shots from the same frame, you can stack the photos to combine several meteors into a single final image. Programs like Photoshop or similar software allow you to do this. overlay and mask so that all the shooting stars remain without burning the background.
Shooting in RAW gives you leeway to adjust white balance, lift shadows without introducing too much noise, or reduce light pollution. Work in sections using brushes or masks: lower the exposure of the sky if it's too bright, increase the contrast of the light trails slightly, and Maintain a natural appearance.
If you're not comfortable with stacking, another option is to select your best single shot (or several) and do some subtle editing: a touch of noise reduction, adjust blacks and whites, and you're done. The important thing is to respect the nighttime feel and not force fluorescent colors that They were not at the scene.
Location, Moon and conditions: three decisive factors
Location matters. If you stay on a balcony in the city, you'll most likely see little to nothing. Plan a trip to rural areas, dark parks, or mountain viewpoints with clear horizons. Use the Light Pollution Map to "hunt" for black/blue patches near you and limit artificial lights the maximum possible.
The moon, when full or nearly full, complicates observation: it increases the brightness of the sky and swallows faint meteors. Even so, you can capture bright meteors and the occasional spectacular trail. Adjust settings to lower (exposure/ISO) to avoid overexposing the background and focus on... take many takes to improve the odds.
The weather decides everything. No matter how dark the sky is, if it gets cloudy, it's game over. Check AEMET or your favorite weather app in advance and several times on the day. Keep alternatives in mind: sometimes, less than an hour's drive away, there's a window of clear skies that will let you... save the night.
Very useful extra apps and features that night
Activate night mode or red mode in your astronomy apps (Stellarium, Star Walk 2, Night Sky) to protect your eyesight. In Star Walk 2, "AR mode" helps locate Perseus in seconds. Stellarium allows you to plan your stargazing, view the sky in real time, and, in paid versions, organize detailed sessions and access extra material.
If you're using SkEye (Android), always calibrate the sensors in a figure-eight pattern before starting; this will improve the accuracy of your sunbeam. On iPhone, Classic Sky Map 2 with its event search function greatly speeds up orientation, especially if you want to go straight to the profitable zone.
For photography, check if your camera offers RAW capture and a full Pro/Manual mode. Some native camera apps limit exposure if they don't detect a tripod; place your phone firmly on a stable surface to unlock longer exposure times. obtain clear trails.
Equipment and safety checklist
A sturdy tripod with a secure mount for your phone, remote shutter release or smartwatch, external battery, lens cleaning cloth, warm clothing, water, and snacks. A flashlight with red mode or filter It will prevent you from being dazzled. Download offline maps in case coverage fails when going to remote areas.
Share your location with someone you trust and avoid parking in dangerous places. If you're unfamiliar with the area, arrive before dark to familiarize yourself with the terrain and choose a safe spot. Observation is better in company: besides being more enjoyable, it's always... safer and more practical.
Finally, a simple reminder: the less you touch your phone, the more you'll see. Turn on the red light, adjust everything, start your automatic shooting, and just look at the sky. With the experience of the first few minutes, you'll know if you need to fine-tune the exposure or ISO, but try not to break your routine. adaptation to darkness.
The Perseids are a fantastic plan that costs nothing and is incredibly exciting. With a dark location, a cloudless forecast, a red screen, a tripod, and some basic settings, your Android device becomes the perfect ally for observing and photographing the meteor shower. Add apps like Light Pollution Map to choose the location, Stellarium or Star Walk 2 for navigation, and continuous shooting with an intervalometer or remote shutter release. You'll have almost everything in your favor to enjoy yourself and "hunt" several fleeting moments. on the same night.
