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