Ouranos: Stargazing Forecast

In-app purchases
321 reviews
Content rating
PEGI 3
10K+
Downloads
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About this app

Never miss a starry night again. Ouranos is your all-in-one astronomy and stargazing companion. It combines high-precision weather forecasts, detailed astronomical data, and community features, helping you know exactly when the sky will be perfect for observing stars, planets, meteor showers, or capturing stunning astrophotography. Whether you’re a beginner or a seasoned astronomer, Ouranos makes planning your night under the stars effortless.

Starry Sky Forecasts & Astronomy Weather
Get accurate weather data optimized for stargazing:
• Cloud cover, seeing, transparency
• Wind, humidity, dew point
• Hour-by-hour visibility conditions
• Night-sky-focused forecasts
• Sky Quality Index updated every 15 minutes
• 14-day forecast to plan your stargazing weeks in advance

Astronomy Tools & Celestial Tracking
Stay informed with precise astronomical insights:
• Planet, Moon, and star rise/set times
• Deep-sky object visibility and Sky Analysis
• Interactive charts for planning your observation sessions
• More than 500 yearly astronomy events: meteor showers, eclipses, conjunctions

Community & Astrophotography
Share your photos of the night sky and discover images from other astronomy enthusiasts:
• Public astrophotography gallery
• User profiles and social features
• Tips, techniques, and discussions with fellow stargazers

AI-Powered Stargazing Tips
Get personalized recommendations based on:
• Your location
• Weather trends
• Light pollution
• Upcoming celestial events

Light Pollution Map & Dark-Sky Finder
Find the best observation spots near you:
• Global light pollution map
• Bortle scale data
• Ideal for astrophotography trips and telescope sessions

Improved Interface & Navigation
Ouranos now features a redesigned hierarchy and a cleaner interface, making it faster and easier to access all tools and features.

Why choose Ouranos?
Ouranos brings together astronomy weather, sky analysis, celestial tracking, community, AI recommendations, and dark-sky tools in one powerful platform. Observe. Capture. Share. Your starry night starts here.
All-in-one astronomy app: sky forecasts, analysis, community, and dark-sky tools
Updated on
Nov 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

298 reviews
Graham Keys
September 23, 2025
I've been using this app for a few months and it has become a huge part of my astrophotography routine, however its forecasts in recent weeks have become questionable/unreliable. For example, as I write this my telescope is outside in a cloudless sky but the app says 100% coverage, and vice versa when it's full cloud coverage but the app says 0%? The app also frequently shows 100% all night except for 1 hour when it is 0%, I don't think that's possible. I wish it was as reliable as it was
6 people found this review helpful
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Steven Hermans
September 20, 2025
I'm using this app for a few weeks now. I must say that when you first start it, it's a bit overwhelming. but when you learn how to read it it's pretty amazing. next to it it has some nice side perks like astro news and planetary visibility. all by all a great app with nice graphics to get most out of your astrophotography. pricing is kind of expensive and unfortunately not a single purchase option is available. but if you use it everyday it's worth it in my opinion.
2 people found this review helpful
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Rob Par
July 1, 2026
every time I change a setting out send to crash and I have to refresh the app
1 person found this review helpful
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What’s new

- Redesign of the “Tonight” tab
- Optimization bug fixes