Your window to the night sky
Ceno turns your phone into a window to the night sky — and connects you with a global community of stargazers who share what they see.
Ceno is intended for users 18 and older.
Everything above you tonight
Whether you're a total beginner or a seasoned astrophotographer, Ceno helps you find, track, log, and talk about everything happening above you.
Live Sky Map
Point your view anywhere and instantly see constellations, planets, and bright stars in real time. Search any object and switch between visible, infrared, X-ray, and gamma views.
Meteor Shower Tracker
See exactly when the Perseids, Lyrids, Orionids, and more will peak — with live countdowns, expected meteor rates (ZHR), and a 3D interactive globe of visibility worldwide.
Celestial Catalog
Browse a growing library of planets, stars, nebulae, and galaxies — each rated by difficulty so you know what's within reach of your eyes, binoculars, or telescope tonight.
Observation Log
Record every session — date, time, location, weather, and the exact objects you targeted, from Mercury to the Andromeda Galaxy. Build a personal history across the sky.
AI Weekly Sky Plans
Tell Ceno your region and sky conditions — urban, rural dark, coastal, mountain — and get a personalized 7-day observing plan built around what's actually visible where you live.
Community & Chat
Share discoveries, post photos, and swap tips in a feed built for astronomy lovers. Comment, like, save posts, and message other stargazers directly to plan sessions together.
See it in action
Real-time, easy-to-read sky maps — no astronomy degree required.
Why stargazers choose Ceno
Real-time, easy-to-read sky maps — no astronomy degree required
Never miss a meteor shower, conjunction, or rare sky event
Track your personal observing history over time
A genuine community, not just a reference tool
Personalized guidance based on your exact location and sky conditions
Look up.
Ceno helps you understand what you're seeing — and find people who are looking up too.
Download on the App Store