Mobile Observatory - Astronomy

Mobile Observatory - Astronomy


(5 stars)


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50,000 - 100,000 downloads

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Mobile Observatory is the highest rated astronomy app on the Android market and the perfect tool for anybody interested in the sky's wonders, from the occasional sky gazer to the passionate amateur astronomer. This app is a 2014 ON for Learning Award Winner for achieving the highest level of learning potential in digital media and entertainment for kids (

You want to know if the next lunar eclipse is visible from your location or when the next bright comet is visible? You would like to be notified by your smart phone the next time, Jupiter and the Moon meet in the sky? You want to know what the blazing bright object in the evening sky is? You want to be always up-to-date which celestial events are visible from your location? Then this app is a must-have for you!

The app does not only include a live, zoomable sky map telling you what sky object you are looking at but provides you with loads of detailed extra information on stars, planets, deep sky objects, meteor showers, comets, asteroids, lunar and solar eclipses as well as detailed ephemeris of all included sky objects and an interactive top-down view of the Solar System. All that in just one app!

Main Features
- Zoomable sky map showing stars, planets, asteroids, and more (above and below the horizon)
- Interactive top-down view of the Solar System
- Live mode (point device on sky and get information on what you see)
- Calendar showing detailed descriptions of celestial events
- Push celestial events to your phone's calendar and set a reminder alarm
- Rise, set, and transit times for any object
- Position of any object in the sky (altitude and direction)
- Twilight times, length of day
- Bright Star Catalog (~9000 stars) with detailed information
- More than 400 000 additional stars from the PPM Star Catalog (Android 3.1 or higher required)
- 2500 selected NGC objects (galaxies, clusters, ...)
- Messier Catalog (110 objects) complete with images
- Caldwell Catalog (110 objects) complete with images
- Hidden Treasures Catalog (109 objects) complete with images
- Meteor streams (begin, maximum, hourly rate, ...)
- Lunar and solar eclipses information
- Lunar librations, ascending node, maximum declination
- Bright comets (automatically selected according to the date)
- Dwarf planets: The five known dwarf planets
- Minor planets: bright, near Earth, trans-Neptune (more than 10000 in the database)
- Update database online: download up-to-date orbital elements of comets and minor planets
- Moon phases, the apparent view of the sun and planets
- Current image of the Sun and sunspot number
- Automatically generated visibility report for any object
- Simulation of light pollution
- Intuitive User Interface: quickly find what you are looking for
- Widget with rise & set times of the Sun and Moon
- Maintain your favorite locations in a list
- Automatic location determination from the mobile network or GPS
- Select a location from a built-in database or online via Google Maps
- 400 observatory locations
- Choose any time and date
- Detailed ephemeris, visibility information of all objects
- Dates of conjunctions between any object with planets or the Moon
- 3D-view of the Moon and the planets
- Accurate calculations for dates between 1900 and 2100

keywords: astronomy stars, telescope, planets, messier, live, augmented reality, sky view, minor planets, asteroids, dwarf planets, mercury, venus, earth, moon, mars, jupiter, saturn, uranus, neptune, ceres, vesta, juno, eros, transit, eclipse lunar, solar, sunspots, golden hour, blue hour, photography, great red spot, galaxies, cluster, nebulae, orion, meteor showers, milky way, perseids, shooting stars, ISON, sky guide, analemna

Tags: mobile observatory, mobile observatory pro, mobile observator astronomía apk, mobile astronomy, mobile observatory astronomy apk, how to use mobile observatory, mobile observatory astronomy, mobile observatory pro 1.72 qr code, astronomy apps, mobile observator apk.

Recently changed in this version

- Several bugs removed
- Improved selection of objects in Tonight's Best
- Near earth asteroid 2004 BL86 shown

Comments and ratings for Mobile Observatory - Astronomy
  • (75 stars)

    by General Woodsy on 31/01/2015

    Very customisable, professional. Gives wealth of info including all future events Inc meteor showers, conjunction etc.... Still use sky safari on ipad due to hardware scope control, but this is THE app for planning an observing session.

  • (75 stars)

    by Dennis Braswell on 30/01/2015

    Live view is great

  • (75 stars)

    by J.R. Orci on 29/01/2015

    This is THE GOD of astronomy/planetarium apps. I can't believe the amount of features bundled into one interface. I've officially ditched all my other apps for this one. Kudos to the developer.

  • (75 stars)

    by Edwin Irby on 28/01/2015

    Still learning all components of ap. So far love it. Comparing to several other similar aps, but so far the must useful.

  • (75 stars)

    by Jim Frisby on 27/01/2015

    App works well only complaint is that it insists you rate it.

  • (75 stars)

    by Mario H Castillo Sr on 26/01/2015


  • (75 stars)

    by David Nemo on 26/01/2015

    Use it at every observing session.

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