Fig. 26: Star trails above the observing site Chinginas nearby the Mirasteilas Observatory in Falera. This picture is a combination of 74 single exposures with 25 seconds exposure time and an interval of 30 seconds. Sensor sensitivity set to ISO 3200. Colour temperature set to 3200 Kelvin. Section of a timelapse movie consisting 414 single images. Nikon D3; Δt=25 s; f=17 mm; f/2.8; ISO 3200; 18 September 2009 22:36:09
