For aviation photographers

Never miss a plane crossing the moon again.

LunAir watches the sky from your exact location and alerts you the moment an aircraft is about to fly past the moon. Set your coordinates once. Get the shot of your portfolio.

Start tracking — it’s free How it works

Live ADS-B Real-time flight data

±0.5° precision Astronomical-grade math

Pre-transit countdown Time to set up your shot

FLIGHTAA92

ALT10,670 m

SEPARATION0.8°

TRANSIT IN 2M 14S

The moment

From notification to photograph. In minutes.

You get an alert when an aircraft is on a trajectory to pass close to the moon as seen from where you are. You step outside with your camera. You wait for the moment. You take the shot.

Transit alert · 14:23

Plane crossing moon in 2 min

American AA92 (B787-9) on approach trajectory. Look 142° SE, 38° above horizon.

Azimuth
142.3°

Elevation
38.7°

Separation
0.8°

Aircraft alt
10,670 m

PHOTO BY Emilio Garcia / UNSPLASH

NIKON Z 6 · 600.0mm · f/6.3 · 1/1600s · ISO 320

How it works

Three steps. One unforgettable shot.

01 — Set up

Set your location

Drop a pin on the map or use your current GPS coordinates. LunAir uses your exact viewpoint to compute where the moon and every nearby aircraft sit in your sky.

02 — Watch

Get instant alerts

The app continuously polls live ADS-B flight data and predicts trajectories up to 6 minutes ahead. The moment a transit is likely, you get a push notification with everything you need.

03 — Capture

Take the shot

Point your camera at the precise azimuth and elevation in the alert. Wait. Capture an image you couldn’t plan for in any other way.

Features

Built for photographers who’ve been waiting years.

Everything you need to catch transits the moment they happen — and to never miss a low flyover overhead.

Moon transit alerts

Know the second any aircraft is about to fly past the lunar disk from your viewpoint.

Live ADS-B data

Real-time positions from OpenSky Network, refreshed every few seconds. No delay, no guessing.

Astronomical precision

Moon position computed to better than 0.01°. 6-minute prediction window so you have time to set up.

Push notifications

Phone in your pocket? You’ll still know. Native push to iOS and Android, even when the app is closed.

Pro

Multiple locations

Save up to 5 spots — your home, your favourite shooting location, the airport viewing area.

Pro

Detailed shot setup data

Exact azimuth, elevation, aircraft altitude, speed and heading — everything you need to nail the framing.

Pro

Pricing

Free to start. Pay only when you’re ready.

The free tier is genuinely useful—no artificial limits. Upgrade when you’re ready for push notifications and the full experience.

Free

$0 / forever

Get started, no credit card needed.

Moon transit alerts
One saved location
In-app notifications
6-minute prediction window
Live ADS-B flight data
Push notifications
Multiple saved locations

Start free

Pro

$5 / month

For active aviation photographers.

Everything in Free
Push notifications (iOS & Android)
Up to 5 saved locations
Detailed shot setup data
Priority alert delivery
Cancel anytime, no fees

Start 14-day trial

Coming next

More features in the pipeline.

We’re working on rare aircraft watchlists (track A380s, military, specific registrations), sun transit alerts for daytime shots, and weather-aware filtering. Be the first to know when these launch.

Rare aircraft watchlist Get notified when an A380, military, or any aircraft you specify flies within range.

Sun transit alerts Daytime aircraft transits across the sun — equally striking, available every day.

Weather-aware filtering Only get alerts when local cloud cover is low enough to actually see the shot.

Questions

Things photographers ask.

What exactly is a moon transit?

A transit is when an aircraft passes directly in front of the moon as seen from your specific location on Earth. The moon is only ~0.5° wide in the sky, so from any single viewpoint these moments are rare and brief — typically lasting less than a second.

How accurate are the alerts?

Moon position is computed to better than 0.01° using standard astronomical libraries. Aircraft positions come from live ADS-B data with roughly ±100 m accuracy, which translates to ~0.4° angular error at typical viewing distances. We default to a 1.5° alert threshold — close enough for spectacular shots, generous enough to account for prediction error.

Where does the flight data come from?

LunAir uses ADS-B data from the OpenSky Network, a crowdsourced research project that aggregates real-time aircraft transponder broadcasts. Coverage is excellent across Europe, North America, and most populated regions worldwide.

What camera gear do I need?

For a sharp aircraft silhouette against the moon you’ll typically want at least a 400mm equivalent telephoto lens, ideally 600mm or longer. A tripod is essential. Modern mirrorless and DSLR systems both work well — exposure is the same as standard moon photography (around f/8, 1/2000s, ISO 200 in daylight). We put together a full guide on gear, settings, and technique if you want to go deeper.

Does it work where I live?

If aircraft fly past your location and the moon is sometimes visible, yes. Coverage works best in regions with high ADS-B density (Europe, North America, Australia, East Asia). Try the free tier first to see how often transits are predicted from your specific viewpoint.

Can I cancel anytime?

Yes — paid plans cancel instantly with no fees. You keep access through the end of your billing period and revert to the free tier afterward. No emails, no friction.

New to moon transit photography? Read the guide →