What Color is the Sun? (Black Body Physics)

The Sun appears yellow to us. But are we sure that it is yellow? The black body spectra of the Sun shows that our star emits all colours from UV to Infrared. It is the blending of all visible colors that provides the real colour of the sun: the Sun is white...

It appears to us yellow because of the scattering of blue and green colors by the atmosphere. In this short video we look into this, and on the way, figure out why the sky is blue during the day, and turns orange in the evening!

This video is an extract of a larger production related to Black Body Radiation. https://odysee.com/black-body-radiation-understanding-the

Detailed content: 0:24 What is the Color of the Sun? 0:57 Why does the Sun look yellow? 1:12 Why is the Sky blue? 1:20 Why is the sun orange at sunset? 1:33 Why is the sky orange at sunset? 1:48 Why does hot metal look red?

Credit: Background: Traverse galaxy Background: by F. Summers, G. Bacon (STScI). Simulation by C Hummels, P. Hopkins (CalTech) and A. Wetzel (UC Davis)

All other illustrations not credited in the video are by Edouard Reny.

Music by Edouard Reny.

This video is produced and presented by Edouard Reny, Ph.D. in solid state chemistry and private tutor in Physical Sciences.

For access to great resources that will help you with your studies of high school Physics, visit and subscribe to the "Physics Made Easy" website: https://www.physics-made-easy.com/

Edouard provides one-on-one private tuition in Physics (face to face or by Skype). If you wish to contact him, visit his website: https://www.physics-tutor.nl/