Gazulation

Content rating
Everyone
10+
Downloads
Content rating
Everyone
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About this app

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.
Gazulation scores by hour, clouds, darkness, Moon, tells you the best time.
Updated on
Aug 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
    Location
  • Data isn’t encrypted

What’s new

New: Know your sky before you even check tonight's
forecast. 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).