Gazulation
Know when to look up
Free · Designed for iPad. Not verified for macOS.
Will tonight be worth looking up?
Gazulation answers one question: when is the best time to stargaze from where you stand. It reads the next 12 hours of sky conditions and gives every hour a simple rating — Excellent, Good, Fair, or Poor — so you know at a glance whether to grab your telescope or stay cozy inside.
THE BEST TIME, FOUND FOR YOU
Gazulation weighs everything that matters for a dark, clear sky:
• Cloud cover — the deal-breaker
• True darkness — not just sunset, but astronomical twilight
• The Moon — its position and brightness wash out faint stars
• Humidity and dew — the haze that blurs your view
• Wind — steadiness for telescopes and astrophotography
Then it highlights the single best window tonight, so you don't have to decode a weather chart yourself.
HOUR BY HOUR
See the next 12 hours as a simple timeline. Each hour gets a rating and the details behind it: sky visibility, temperature, humidity, wind, and where the Moon sits.
ANYWHERE ON EARTH
• Use your current location with one tap
• Search any city or place
• Enter exact coordinates for that dark-sky site you love
MADE FOR NIGHT
A calm, dark interface that is easy on adapted eyes.
Whether you are an astrophotographer planning a session, chasing a meteor shower, or just wondering whether to step outside — Gazulation tells you when.
Weather data by WeatherAPI.com.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Gazulation now shows your location's Bortle class — how much light pollution stands between you and the stars, from Bortle 1 (pristine, Milky Way visible) to Bortle 9 (inner-city glow).
The developer, Li Yong Teng, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Li Yong Teng
- Size
- 17.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Li Yong Teng