Star trails around Polaris


Peter R Longden

Weston Turville, Aylesbury, Buckinghamshire

Camera: Canon EOS 5D Mark IV DSLR
Lens: Sigma 24mm f/1.4 DG HSM Art
Capture software: BackyardEOS
Image processing:
Canon Digital Photo Professional 4, Photoshop CC

The North celestial pole. Polaris (Alpha Ursae Minoris) is currently almost 1 degree from the exact pole. Image built from a continuous sequence of twenty 30 second exposures captured between 23h46m and 00h12m on 13-14 May 2018. Exposure details: f/4.5, 30 seconds, ISO 6400, colour temperature 3800K