Stargazing guide

How to Use an AR Star Map

An AR star map overlays sky information on your camera view. The goal is to make constellations easier to connect with the stars you actually see.

Quick facts

Use these cues first, then confirm the pattern in the AR viewer.

Best method

Start with the brightest nearby objects, then compare How to Use an AR Star Map with the AR overlay.

Location matters

Altitude and direction change with latitude, longitude, date, and time.

Alignment tip

If the phone compass drifts, adjust the heading controls until a known star pattern lines up.

Start with permissions

The browser asks for camera, motion, and location access only after you tap Start Sky AR. These signals help the app point the overlay in the right direction.

Point slowly

Move the phone slowly and pause when comparing stars. Fast movement can make compass drift or sensor lag easier to notice.

Adjust alignment

If the overlay is slightly rotated, use the +5 and -5 buttons or drag horizontally to align the sky map with known stars.

Frequently asked questions

Short answers for common skywatching questions before opening the AR viewer.

Can I find How to Use an AR Star Map from a city?

Often yes if the key stars or object are bright enough, but haze, buildings, and light pollution can hide fainter details.

Why can the AR overlay be slightly offset?

Mobile compass readings can drift near metal, cases, cars, and buildings. Use a known bright object to tune the heading offset.

Does my location change the result?

Yes. The same object can be high, low, or below the horizon depending on your location and the current time.

Related sky guides

Use these pages to move from reading into the AR viewer with better context.

Interactive star map

Learn how date, time, and location shape the sky above you.

Read more

Visible tonight

Check planets, the Moon, and bright objects before opening AR.

Read more

How to use AR

Understand camera, orientation, and compass alignment in the viewer.

Read more

Open AR to find How to Use an AR Star Map

Use the browser sky map to compare How to Use an AR Star Map with the real sky from your location.

Open AR sky map