Solar eclipse app, computing local circumstances for a solar eclipse
About EclipseDroid USB light
EclipseDroid USB light is a books & reference app developed by W. Strickling.
Download Statistics
EclipseDroid USB light has been downloaded 28 thousand times. In the last 30 days, the app was downloaded 34 times.
User Ratings
EclipseDroid USB light is rated 4.33 out of 5 stars. The rating is based on 150 ratings.
App Information
EclipseDroid USB light is FREE to download. The APK download size is 4.35 MB. The latest version available is 9.2.1. The last update was on April 18, 2026.
Technical Requirements
EclipseDroid USB light requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play June 2011.
Description
EclipseDroid is the ultimate companion for each engaged solar eclipse observer and all people, who are interested in solar eclipses. The app calculates exact data for any solar eclipse at any location. Relax and watch the eclipse and not your cameras, EclipseDroid will work for you!
New in Version 8: Search eclipses for your location, Portuguese language support.
Version 5 includes an EFlight mode for eclipse observation from an aircraft. Now all timing tasks will run in a service which prevent from being terminated in background.
EclipseDroid is especially designed to support engaged solar eclipse observers in their observations. It will show timetables and countdowns for the contact times, make acoustic announcements of the contacts or other user defined events. It will launch other apps, show text announcements and trigger internal or external cameras connected by USB (USB host capability and USB OTG cable required) or optical cable. All these events can be defined and customized in a script by the user. The timings of the events depend on the contact times which are calculated with high precision from the actual device's position or a custom location. For using USB functionality please set "USB Debugging" to On in Android Settings, Developer Settings.
To prepare your eclipse observation, select a desired location from the map, from a list or input free coordinates. To rehearse and check your observation program, simply run EclipseDroid in eclipse simulation mode. When selecting and checking your observation site, avoid unpleasant surprises like buildings or trees blocking your eclipse view! Just call the AR screen of EclipseDroid to see an overlay of the Sun's position at eclipse time with an actual camera image (only availabe in full version).
EclipseDroid has several screens and layouts to show the precise contact times for your location. These are the beginning and end of the eclipse (C1 and C4), the beginning and end of the total or annual phase (C2 and C3), the time of mid eclipse and the current percentage of coverage of the solar disk. You have the choice of two layouts: a smart layout showing the local circumstances and an animation of the eclipse in a condensed form or the classic layout with countdowns for all contacts, an events list with the next upcoming events and the actual eclipse view, if the eclipse is running.
In the 'eclipse details' screen you get full information about the local circumstances of the eclipse. Pressing 'Menu' will add the eclipse to your favorite personal calendar.
More features in Pro version: - Eclipses > 2019, - Database for Elements -3000 to 300 available - global events and magnitude time table - link to NASA maps. - > 10 photos - AR screen - barometric logging
Required Permissions: - Hardware controls: Camera for AR. If compatibility refusal for devices without front camera: Try installation from my website http://www.strickling.net/eclipsedroid.htm! - Exact location and network location: For site-specific calculations of the contact times. - Internet Access: Online selection and network based localization of an observation site, database download. - SD card access: Storing settings, event lists, logs, locations and databases. - System tools: Keep screen on if connected to external power - Your Account - Read Google service configuration: Needed for the Google maps module
Lunar eclipses are not supported, nor does the app contain pretty pictures of huge graphics!
Bugs or problems found? Please send an error report for bug fixing or send an email instead of giving bad ratings! Translators welcome! If you like this app and prefer it in your language, contact me! Translation is rather easy.
Recent changes: 9.2.1: Weather link changed to clearoutside.com 9.2.0: Russian langugage support, optional isochrones in OSM Map view 9.1.0: DeltaT updates and DeltaT input option, Android 16 Support 9.0.0: New USB module to support more Canon and Nikon Cameras 8.2.0: Update for Android Q ScopedStorage requirements, Bugfixes 8.0.0: search an eclipse for actual location
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Technical! Needs for newcomers better explanation. Perhaps an auto demo, one click tutorial.
★★★★★Darren Bly· Aug 10, 2016
WAS a very good app, but the latest update broke it. Crashes on start up. I'll update this review once it's fixed, but I really liked it when it worked. Thanks for the quick fix. It's worth 5 stars just for that. It's a very good app and that's from a 45-year astronomer. If you made an iOS version I have 8 or 9 friends that would buy. Keep up the good work
★★★★★karim ullah· Dec 26, 2019
Best lite weight with many options, a Bessemer app in devices, it deserves 7 stars
★☆☆☆☆Chad· May 21, 2012
Terrible Clunky, hard to use. Wouldn't even change the date, so I knew when to watch the eclipse today which is all I wanted, thank god for Google. Total garbage to charge for something that happens so rarely.
★☆☆☆☆A Google User· Aug 7, 2013
Rubbish, incorrect It's incorrect on times and timezones. The app eclipse 2013 comes up with different times but has othee errors abd wrong times as well. Rubbish. And why does it want info from your account?
★☆☆☆☆A Google User· Nov 21, 2012
Very Poor free version Only displays current year. Get "Sun, Moon and planets" program for full Sun AND Moon eclipses for any date, for Free !
★☆☆☆☆Jason· May 19, 2012
Am I missing something? The date on the May 2012 annular is off by one day.
Google Play Rankings for EclipseDroid USB light
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Technologies used by EclipseDroid USB light
EclipseDroid USB light is requesting 18 permissions and is using 18 libraries.
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