Tree with polar star
Fig. 34: A tree is groung out of the yellow light pollution and growing towards the celestial north pole which is circled by the circumpolar stars. Starparty at Ahornalp in Emmental, canton Berne. Nikon D3; Δt=240 s; f=17 mm; f/4.0; ISO 200; 7 May 2011 00:30:27