Night Sky Photos with a Phone
The phone in your pocket can photograph the Moon, the bright planets and the ISS from anywhere in Guyana, and with an astro mode, a tripod and a dark sky, the Milky Way. This lesson shows what each kind of phone can do, how to check tonight's sky for it, and how to shoot near the equator.
Phone Sky Check · How to See the Milky Way Tonight
Most people in Guyana who photograph the sky do it with a phone. What a phone can catch depends on three things: the night modes its camera has, how bright the target is, and how dark and clear the sky is where you stand. Phone Sky Check joins all three into a yes, maybe or no for tonight, worked out for your place.
What your phone can do
Open your camera app and look at its modes. Phones fall into three classes:
- Dedicated astro mode. Google describes Astrophotography inside Night Sight on Pixel phones: put the phone on a tripod or stand, and the shutter switches to it by itself. Samsung describes an Astrophotography mode in its Expert RAW app for the Galaxy S22 and S23 series.
- Night mode only. Apple's Night mode (iPhone 11 and later), Google's Night Sight and Samsung's Night mode each stack a few seconds of light into one photo. Apple's Max setting lengthens the capture.
- Neither. No Night mode in the camera app.
The table on the Phone Sky Check page links each maker's support page and says what it states, and nothing more. A mode a maker does not describe is not assumed.
Your camera app has a Night mode but no Astro or Astrophotography mode. Which class is your phone?
- Dedicated astro mode
- Night mode only (the right answer)
- Neither
- It depends on the Moon
The class comes from the modes the camera offers. Night mode without an astro mode is the middle class: enough for the Moon, the bright planets and the ISS, and only a faint Milky Way from a very dark site.
Check tonight's sky
Phone Sky Check answers one question: can my phone capture this tonight?
- Open Phone Sky Check and check the place in the location bar. Tap My location, or pick Georgetown, Lethem or another Guyana town.
- Under Your phone, pick your class.
- Under Target, pick the Moon, a planet, the Milky Way, a meteor shower or an ISS pass.
- Read the verdict. Under it are the best time in Guyana time, how high the target stands and in which direction, how dark the sky is then, and the reasons.
- Read Settings for your phone and target, and the Field card for the tropics.
The verdict is only a yes when the target is computed to be up, high enough and in a dark enough sky at your place tonight. The weather comes last: on a Skip night a bright target can still show through gaps, so a yes drops to maybe, and a faint target drops to no.
The tool's own verdict for Georgetown or Lethem on any of the next 60 nights. Change the phone class, the target and the night, and watch which one moves the answer.
The Moon, the planets and the ISS
These are bright, so every class of phone can photograph them.
- The Moon is sunlit and needs a short exposure, not a long one. Leave Night mode off, tap the Moon to focus, then drag the brightness down until the craters show.
- A planet is a bright dot to a phone: its lens is far too small to show Saturn's rings or Jupiter's moons. Frame it with the Moon, a tree line or a building. For detail, hold the phone's lens to a telescope or binocular eyepiece.
- The ISS crosses the sky in a few minutes. Film it, or put the phone on a tripod and take the longest exposure your camera allows as it crosses to catch a streak.
What a pass looks like in one long exposure, and why a higher pass draws a longer streak.
You point a phone at a bright half Moon and Night mode switches on. What should you do?
- Leave it on and hold still for the full capture
- Turn it off: the Moon is sunlit and needs a short exposure (the right answer)
- Turn on the flash
- Zoom in as far as the slider goes
Night mode gathers seconds of light for dark scenes. The Moon is a sunlit landscape, so a long capture turns it into a white blob. Turn Night mode off and lower the brightness instead.
The Milky Way and meteors
These are faint, so the phone class and the darkness of the sky decide.
- The Milky Way's core needs an astro mode, a tripod, a sky about Bortle 4 or darker, the core at least 15° up and the Moon down. Night mode alone gives a faint band at best, and only from a very dark site. A phone without either cannot gather enough light.
- Meteors are brief. Even with an astro mode most frames are empty, so the check asks for a strong shower (about 20 or more meteors an hour at your place) before it says yes. Use the widest lens, aim about halfway up the sky away from the radiant, and shoot frame after frame.
From Guyana the core stands high: at Georgetown (6.8° N) it climbs to about 54° when it crosses the meridian, and at Lethem (3.4° N) to about 58°. At 40° N it reaches only 21°. Frame it high in the sky, not on the horizon.
Where the core rises, how high it climbs and where it sets, from Guyana.
It is a clear, moonless night in the core season, and you are in central Georgetown, a city sky around Bortle 8, with a phone that has an astro mode. What does Phone Sky Check say for the Milky Way?
- Yes, because the core is high
- Maybe, because the Moon is down
- No, because the city sky is too bright (the right answer)
- Yes, if you use digital zoom
Every gate must be open: the core up, the Moon down, a clear sky and a dark site. City light closes the last one, so drive somewhere darker and check again with the Bortle Map.
Shooting near the equator
Dark comes fast in the tropics. At Georgetown on 7 October 2026 the Sun set at 17:41 Guyana time and the sky was fully dark (the Sun 18° down) at 18:50, 69 minutes later. In London the same evening it took 111 minutes. Near the equator that gap stays between about 69 and 77 minutes all year, so be set up before sunset.
Minutes from sunset to full dark through the year, Georgetown and Lethem against London.
The field card on the tool page lists the rest for the place and night you check:
- Fog. A phone carried out of an air-conditioned room fogs in humid air. Let it warm in a sealed bag for 10 to 15 minutes before you shoot.
- Clouds. They come and go fast near the equator. A cloudy evening can open up for half an hour, so wait for the gaps.
- Insects. Put on repellent before you set up, away from the lens.
- Your eyes. Turn the screen down, or switch on red night vision, so your eyes stay used to the dark.
What the check does not do
- It does not know your exact phone model. It works from the three classes and what each maker's own page states.
- It does not promise a photo. Haze, a passing cloud or a shaky hand can spoil a yes.
- Its Milky Way and meteor thresholds are editorial defaults, not a measured limit of any phone.