Capture the blue sun photo

Imagine if we had a blue sun, what would it be like? The Huffingtonpost published NASA's most recent "Day Astronomy Picture ," telling us more about the star color of this star with the "cold" color version, giving a detailed look at the book. color of the sun.

The identity is a layer of the sun's atmosphere about 250-1,300 miles thick above the surface of the sun. The color scheme is right above the bright and under the halo as shown below.

The color has red light due to super hot hydrogen burning off, sometimes, we can see its rim during the total solar eclipse.

Seeing with the naked eye, we see that the sun is usually yellow or red, but in fact it is a normal white star. And the photo of the blue version released by NASA was made using a special wavelength of ultraviolet light called CAK , emitted by calcium ionized in the sun's atmosphere.

Photographer Alan Friedman, the author of the image we are referring to, said on his Tumblr page: "The Journal of a Space Cowboy" that the picture was taken in the purple part of the visible spectrum. often, that gas "The sun is boiling with activity". Mr. Friedman added: "I can hardly see anything with the naked eye at the wavelength of CaK (my eyes are not sensitive enough) but the camera does not encounter this problem."

NASA photos: