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About Heavens-Above

When can I see the ISS? What's that light in the sky? The official Heavens-Above app provides you with precise pass predictions for the ISS, visible satellites and radio satellites. Main features include:

Live sky chart
See what's in the sky above you right now or at a given moment.

Pass predictions
Get precise predictions for passes of the International Space Station (ISS) and most visible satellites.

Radio satellites
Get passes for amateur radio satellites, complete with uplink and downlink information.

All calculations performed locally
Predictions are generated right on your phone so you only need a data connection every few days.

Orbit and ground track
See details about the orbit of any selected satellite rendered and with all relevant data.

Satellite details
Get detailed information about any satellite, as provided by our Heavens-Above website.

Timeline
Get a visual overview over passes and animate the position of satellites on the sky chart and on the ground track.

Night mode
An optional red on black color scheme to preserve your night vision.

Tracker
Easily find or identify any object in the sky by orienting your device towards it.

Calendar Integration
Quickly add interesting passes to your calendar so you won't miss them.

Financed by adverts
This version integrates advertisements to make it available for free. Get Heavens-Above Pro to remove the adverts.

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Frequently Asked Questions(FAQ)

When can I see the ISS?

The Heavens-Above app provides precise pass predictions for the International Space Station (ISS) and most visible satellites. You can use the app to know when the ISS will be visible in the sky.

What's that light in the sky?

If you are wondering about a light in the sky, the Heavens-Above app can help you identify it. The app provides information about visible satellites, including their pass predictions and details about their orbits.

What are the main features of Heavens-Above app?

The main features of the Heavens-Above app include live sky chart, pass predictions for the ISS and visible satellites, information about radio satellites, orbit and ground track details, satellite information, timeline view, night mode, sky object tracker, calendar integration, and more.

How are the predictions generated in Heavens-Above app?

All calculations and predictions in the Heavens-Above app are performed locally on your phone. This means you only need a data connection every few days to get accurate and up-to-date predictions.

Can I remove the advertisements in Heavens-Above app?

Yes, you can remove the advertisements by purchasing the Heavens-Above Pro version. The Pro version does not include any ads, providing a ad-free experience.