Heavens-Above

Heavens-Above

Contains ads

About this app

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.

Comets
Find the location of bright comets, including NEOWISE, in the sky.

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.

Ratings and reviews

Absolutely wonderful, precise tool to see when and where anything in low Earth orbit is passing overhead, from the ISS and other space exploration craft, to Starlink satellites, to decades-old debris like rocket boosters. You can filter by minimum magnitude, show only visible passes, set parameters for what's defined as "visible" and more. There's a few more tools on their website, but for a free app, this is better than I could ask for.

I really enjoy this app as it can pretty much let me know when there will be something I want to see passing overhead. However I have a few questions. 1. Why in the list of nightly events are there hardly ever anything listed between the hours of midnight and 4am. 2. I live outside of our city and once my eyes are accustomed to the dark I can see quite a bit. But even satellites that are given a mag of 1.0 are very hard to see.

This should be a fantastic app, it's certainly a great idea and they seem to have generally done a great job implementing it. However it simply doesn't work for me at all anymore, it worked when I first installed it, but now it is just a useless annoyance. My phone is constantly beeping with exciting things to go see outside and when I click on them the star map informs me that they're not actually there. Something broke. Also greedily they display a giant bright advertisement which blind you.

What's new

Dialog discloses use of location data.
Pro version only: radio frequencies get shifted according to doppler effect.