You can dowload 2 apps:
Off line app : (after installation,you don't need a web connection to run it)
- Calculate the angle of the sun with gnomon height and shadow length
- Convert decimal degrees <=> degree min sec
- Calulate the distance between the parallels of 2 cities with their latitudes
- Ephemeride calculating solar noon, shadow, angle with date, latitude and longitude
- Photo gallery of the top 10 photos of 2016 contest
Web app : contains the same fonctions + (selecting the city in a list, you calculate the ephemeride of the current day, or any day)
1. Install your Android App from Browser (version 2007)
Please follow these steps to install your app on your Android Device.
1) Ensure that the “Unknown sources” box is checked (in the browser) to allow installation of non-Market applications.
2) Simply Open the below URL on your Android Phone Browser
Off line app :http://d2wuvg8krwnvon.cloudfront.net/appfile/b9f4d29ac131.apk (after installation,you don't need a web connection to run it)
Web app : http://d2wuvg8krwnvon.cloudfront.net/appfile/66169d3e96d1.apk (selecting the city in a list, you calculate the ephemeride of the current day, or any day)
3) This will download the .apk file.
4) Tap install and the app will be installed onto your device. Once the app is installed you can delete the .apk file which you had downloaded as it’s no longer needed.
2. Install your Android App from Google Play (version 2007)
Off line app :https://play.google.com/store/apps/details?id=com.app.eratosoffline
Web app : https://play.google.com/store/apps/details?id=com.app.eratos
3. Install your iPhone & iPad App from Safari Browser (version 2007)
Please follow these steps to install your app on your iPhone:
1) Simply Open this URL on your iPhone Safari Browser
Off line app : http://snappy.appypie.com/user/download-plist/appId/b9f4d29ac131
Web app : http://snappy.appypie.com/user/download-plist/appId/66169d3e96d1
2) Click the Launch button which will open a dialog box that will say 'apps.appypie.com would like to install "ERATOS 2016"
3) Tap install and the app will then install onto your iPhone
4) If you are getting “Untrusted App Developer” message when trying to run Appy Pie’s test App on iPhone then follow the instructions as given in this link.
You can also run the ephemeris on your laptop: http://perbosceratos.wixsite.com/appli