The twinkling of a star is possible because of the?

Answer 1

Stars are very far away from Earth.

For the light of a star to reach Earth, it

has to pass through several layers of the

atmosphere where tiny particles of dust float.

The layers of the atmosphere move.

As we look at the stars, we see the stars, we see the

dust moving in the atmosphere. This is what

makes the stars seem to twinkle. But

actually, starlight is steady. You can see this

if you observe the setting sun. The

sun seems to be so near when it sets in

the western horizon. You can see its red-

ish-orange light shine steadily as at sets....

Answer 2

It causes you to squint because stars are distant suns. The orange stars are distant red supergiants.