3D Astrovisor

A three-dimensional view of the sky for any date. Earth sits at the centre, the ten planets move around it through the twelve signs, and the aspects between them are drawn as they form. Drag to rotate, run time forward and watch a transit unfold. It runs in your browser once you press start, and it asks for nothing but a date.

The viewer loads only when you press start. It uses your device to render the scene; your date never leaves the browser.