Four hour exposure, running from 10pm on 2004 March 13th, to 2am on 2004 March 14, and using lightspace noise reduction algorithms (Comparametric and Posimetric Image Processing).

Captured with the Nikon D2H camera, using the Computer Enhanced Multiple Exposure Numerical Technique (CEMENT), as described in Chapter 5 of Intelligent Image Processing,John Wiley and Sons, 2001.