“THE SUN IS YEL­LOW”

How It Works - - SPACE MYTHS -

Think the Sun is yel­low? Think again… sort of. The Sun emits all wave­lengths of vis­i­ble light, from vi­o­let to red. This means that it would ap­pear white if you could view it with the naked eye in space. How­ever, each colour cor­re­sponds to a dif­fer­ent tem­per­a­ture, with yel­low-green light of 550 nanome­tres em­a­nat­ing from about 5,700 de­grees Cel­sius.

From Earth the Sun ap­pears yel­low be­cause the longer-wave­length yel­low light is less eas­ily scat­tered by our at­mos­phere than shorter wave­length colours like blue and vi­o­let.

The Sun might seem yel­low to us, but ap­pear­ances can be de­ceiv­ing

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.