Make a Panorama
Panorama is a great feature to show space. There are Blender and other free tools to achieve this.
First of all, use the Blender BGC Script to create a Cylindrical panorama. SizeX must be two times bigger than SizeY and PartX size the smaller is better. It's quite easy :) So you have an image file which looks like this:
Convert this Cylindrical image to Equirectangular.
Then, there is a free Java panorama viewer. It's good to have one solution which suits every plateform once a time. It's called PTViewer. It's a Java applet. So you can see your panorama through webpage.
<APPLET archive=ptviewer.jar code=ptviewer.class width=520 height=400> <PARAM name=file value="images/panorama.jpg"> </APPLET>