Mobile Observatory - Astronomy

Mobile Observatory - Astronomy

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 observatory pro 1.81 apk.

Recently changed in this version

- Several bugs removed
- Jupiter and Saturn moons improved:
- better and more precise display
- Moon events for Jupiter
- Diagram for the next days can be zoomed
- SkyView improved:
- Landscape can be displayed
- Minimize the object info window
- Altitude is displayed when object path is shown
- Moon is rendered in higher resolution
- Improved object search:
- Auto-complete while typing object name
- Search-speed much faster now
- Timezone changes taken into account

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

    by Jan Reidmiller on 05/01/2015

    I updated from version 2.31 to version 2.42 and this app no longer loads images of the sun or data for the moon. Nexus 7 (2013) running Android 4.4.4.

  • (75 stars)

    by josh propster on 05/01/2015

    Version 2.43 still won't load images for the sun. The app also won't restart without a reboot if you exit Mobile Observatory after having attempted to access sun imagery. The same behaviour occurs on two tablets in my household. Both are Nexus 7, 2013 models, one is running Android 5.0.1, the other is still on Android 4.4.4. As far as I know, this bug first appeared in version 2.41 of Mobile Obser

  • (75 stars)

    by Steven Ashby on 05/01/2015

    MO is a full-featured astronomy app at a fraction of the cost of some other ones available. If you're searching for a solid astro-app and reading this there is no reason to move on. Just get it. MO has a small enough file footprint to reside on the paltry 16GB internal storage of my Samsung Galaxy Tab S 10.5 but would be nice if it supported SD card install.

  • (75 stars)

    by Richard Combs on 02/01/2015

    Does way more than I expected. My go to program. Somewhat complex interface, not really for a beginner.

  • (75 stars)

    by David Darrah on 02/01/2015

    This is a great app for anyone that wants to know what they're looking at when they look up at night. Got this app for my daughter for use in conjunction with her telescope. Nothing beats having up to the minute star charts on hand while observing the night sky.

  • (75 stars)

    by Malcolm Bernstein on 02/01/2015

    I've just started using it so I haven't found all the capabilities but it has vast information available. I used to need several apps to get all this. And it is presented in accessible fashion. Bravo!

  • (75 stars)

    by Trevor Toogood on 01/01/2015

    Best astronomy app, I normally use red shift on my laptop, this is as good. You will find that all the information is there, it will keep you up too date and fire your interest in astronomy.

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