Discover the Wonders of the Night Sky with Mobile Observatory 3 Pro


Mobile Observatory 3 Pro is the ultimate tool for anyone fascinated by the wonders of the sky, whether you are a casual sky gazer or a dedicated amateur astronomer.

Stay Informed About Celestial Events


Have you ever wondered:



  • If the next lunar eclipse is visible from your location?

  • When the next bright comet will appear?

  • If you could receive notifications on your smartphone for celestial events, like the meeting of Jupiter and the Moon?

  • What that bright object in the evening sky is?


If so, then this app is a must-have for you!

About Mobile Observatory Pro


Mobile Observatory Pro is the successor to one of the most successful paid astronomy apps for Android, boasting over 100,000 downloads and a stellar rating of 4.7. Here are some of the impressive improvements:



  • Completely new user interface

  • Access to 45,000 stars, with an option to download an additional 2.5 million stars

  • Photorealistic display of the night and day sky with accurately illuminated landscapes

  • The only app on Android that renders the sky with physical accuracy, accounting for atmospheric scattering

  • Augmented reality sky view using your device's camera

  • 3D view of the Solar System

  • Cardboard viewing of the night sky or Solar System in 3D

  • Map of the Earth showing day and night

  • Numerous widgets for your home screen

  • Daily notifications of celestial events

  • Over 60,000 minor planets with daily updates

  • More than 1,000 comets with daily updates

  • Information on artificial satellites, including the International Space Station (ISS)

  • ... and much more!

Comprehensive Features


Mobile Observatory not only features a live, zoomable sky map that identifies celestial objects but also provides detailed information on:



  • Stars

  • Planets

  • Deep sky objects

  • Meteor showers

  • Comets

  • Asteroids

  • Lunar and solar eclipses


Additionally, it includes an interactive top-down view of the Solar System—all in one app!

More Features to Explore



  • Live mode: Point your device at the sky to get information on what you see

  • Calendar with detailed descriptions of celestial events

  • Push celestial events to your phone's calendar and set reminder alarms

  • Rise, set, and transit times for any object

  • Position of any object in the sky (altitude and direction)

  • Twilight times and length of day

  • Access to 2,500 selected NGC objects (galaxies, clusters, etc.)

  • Complete Messier Catalog (110 objects) with images

  • Complete Caldwell Catalog (110 objects) with images

  • Hidden Treasures Catalog (109 objects) with images

  • Meteor streams information (begin, maximum, hourly rate, etc.)

  • Lunar and solar eclipse details

  • Lunar librations, ascending node, maximum declination

  • Moon phases and apparent view of the sun and planets

  • Current image of the Sun and sunspot number

  • Automatically generated visibility report for any object

  • Light pollution simulation

  • Intuitive user interface for quick navigation

  • Widget with rise and set times of the Sun and Moon

  • Detailed ephemeris and visibility information for all objects

  • Dates of conjunctions between any object, planets, or the Moon

  • Accurate calculations for dates between 1900 and 2100

With Mobile Observatory 3 Pro, you will never miss a celestial event again!