
The Moveable Ephemeris is the computer version of the famous “machine that marched with the sky” in Yuthuppa.
2026 Update
It’s now 2026, and the ephemeris can be easily run in the web page using the free CheerpJ Applet Runner extension in Chrome.
- In Chrome (only), open the CheerpJ Applet Runner page
- Click add to chrome

- Navigate to chrome’s Extension page, chrome://extensions/ or top right three dots, Extensions, Manage Extensions. Make sure it’s on, then click Details.

- You will now need to change the plugins preferences to make its icon appear in the toolbar. This is needed to make the Ephemeris run.
- In the Details pane, scroll down to find Pin to toolbar and turn it on:

- You should now have the CheerpJ icon
in your toolbar. if not quit and restart Chrome.
- Now click the Gloranthan Sky link to open the Ephemeris, then click the CheerpJ icon in the toolbar. It should now load and work
Problems are usually caused by:
- Incognito mode
- Not giving the CheerpJ Applet Runner permission to access the Ephemeris page.
2020 Update
It’s now (2020) often difficult to run java applets in web browsers. Make sure you have java installed. Click here to download the zipped Ephemeris java app, unzip and run the EphemerisII.class file.
2009 Update
If Java is installed on your computer and enabled in your web browser, the Ephemeris should display in a separate window.
Click here to see the Gloranthan sky… (maybe)
Details
If you want to take a closer look at the app, the source code is on Mr. Tines website.
The Gloranthan Ephemeris is Copyrighted 2013 by Moon Design. Big time thanks to Nick Brooke, Alex Ferguson and Mr. Tines for their hard work on the Ephemeris.
Related Pages
Page Last updated: 2026-01-25 12:41:30
