Know when it gets truly dark
Civil, nautical and astronomical twilight lead into your true-darkness window. See exactly how much astronomical darkness the night offers.
Your night sky, at a glance.
Find your hours of darkness, see what the Moon is doing and discover which planets and meteor showers are worth a look. All for your location.
AstroPanelBrowser · Native app for iOS & Android
Make the most of your hours outside.
See what is up
Check planet visibility, rise and set times, Moon phase and active meteor showers before choosing what to observe.
Look beyond tonight
Annual charts put twilight, planet visibility and shower peaks in context. Find nights for a trip or a longer observing session.
Tonight in detail. The year at a glance.
The score is a starting point. Explore the astronomical conditions behind it, then look ahead with the annual charts.
Open AstroPanel
Browser screenshots · Zlín, Czechia · 12 September 2026
Three steps to get started.
Set your location
Use location detection or enter the coordinates of your observing site.
Read tonight’s sky
Check darkness, moonlight, planets and meteor-shower activity together.
Choose your time
Use the night’s timings, or open Annual to plan further ahead.
Does the score include weather?
No. The score combines astronomical darkness, moonlight and planet visibility. It does not include cloud cover, seeing or a weather forecast. Check your local weather separately.
Do I need an account or a subscription?
The browser tool is free to use and opens without an account or subscription.
How is my location used?
Your location sets the horizon and local timings used in the calculations. You can enter coordinates manually. The browser remembers your selected location on your device.
What works offline, and in which language?
Native iOS and Android apps calculate core astronomy on the device; live solar imagery and catalogue refreshes need a connection. App interfaces and the browser dashboard are currently in English.
Take the app with you.
AstroPanel for iOS and Android. Choose your platform.
iOS
App Store
Download link coming soonAndroid
Google Play
Download link coming soonWe’ll add the download links here. In the meantime, you can get started in your browser. Open AstroPanel
Your next night starts here.
Developed by Richard Kacerek for CEMeNt.