Hi Dick

The frame is loading OK, so it looks like you've got Javascript enabled in your browser. However, I've setup Aladin Lite to show the same Horsehead Nebula image that the original tiddler uses by default, and you're not seeing that which makes it look like Aladin simply isn't initialising.

Aladin Lite needs HTML5 browser support - I wonder if maybe you're running an old browser version. What browser do you have? Can you try downloading something like Google Chrome and see if that works for you?