The HATPI Project

In a single 30 second exposure, the HATPI instrument is able to observe the majority of the night sky visible from its observing site in Chile. This is accomplished by 64 carefully aligned instrument-holder units (IHUs; including lenses, CCD cameras, focusers, and fine-pointing mechanisms) to a large mount. The mount tracks stars as they rise and set during the night while the telescope keeps imaging, effectively creating a movie of the night sky.

Mosaic of the night sky.