This long-exposure star trail composition from the vibrant Kyzylkyp Tiramisu Canyon reveals an extraordinary display of concentric circular arcs centered on the north celestial pole. The near-mathematical precision of these rings comes from the steady rotation of Earth, which causes the stars to trace out perfectly nested circles across the sky. The result is a powerful reminder of the exactness of our universe. Even across hours of exposure, the sky maintains a level of consistency and stability that allows these seamless and almost mechanical patterns to emerge.

The rich palette of colors in the trails is produced by the stars themselves. Blue and white arcs originate from hotter young stars, while yellow and amber streaks come from cooler, older stars burning at lower temperatures. Together they form a natural spectrum that sweeps across the sky, surrounding the towering canyon monolith and creating a vivid contrast between our rotating heavens and the ancient rock below.

Image Description and Details : Startrail - dry treeVarjão de Minas / MG - São Gonçalo do Abaeté/MG07/11/2020 - 20h to 22hCanon Eos 6D modifiedBower 35mm F1.4, open in F460x120s, ISO 800

Copyright Information: Samuel Moitinho

Image Description and Details : The color of the stars is linked to their "superficial" temperature (in quotation marks because the stars do not have surfaces, since they are not solid or liquid) - and, contrary to common sense where we associate blue with cold and red in the heat, the bluish / violet ones are the hottest, while the red ones are the coldest - The stars with peak emission in other bands of the visible spectrum have intermediate surface temperatures. Thus, exists stars with peak emission in practically the entire visible spectrum: blue, white, yellow, orange, red ...

(Egyptian Pharaoh Khufu BC.2589 ~ BC. 2566)

Location: Al Giza Desert, Egypt

Camera: Nikon D750, ISO200, F5.6

Lens: Nikon 24-70mm (38mm)

Exposures: 20 sec x 430

Tripod: Horusbennu

Copyright: Young-Dae Kim