Why do we see stars appear twinkling, whereas planets do not twinkle? *
Answers
Explanation:
Because planets emit very much light which nullifies its effect of refraction . Stars appear twinkling because they are very far from earth so very less light reaches to the earth and its refraction can be easily seen and causes twinkling.
Answer:
why and how stars twinkle?
When a ray of light travels from one medium to another it ‘bends’. This phenomenon is referred to as refraction. If it travels from a rare medium to a dense medium, it bends towards the normal and if it travels from a dense medium to a rarer medium, it bends away from the normal. The speed through which it travels changes depending on the medium and therefore this bending occurs.This effect can be observed when light passes through a prism or a glass slab and even when light passes through water. The light ray actually travels from air to a medium of different density here.
So how are refraction and twinkling connected? The atmosphere of the earth is made of different layers. It is affected by winds, varying temperatures, and different densities as well. When light from a distant source (a star) passes through our turbulent (moving air) atmosphere, it undergoes refraction many times. When we finally perceive this light from a star, it appears to be twinkling! This is because some of the light rays reach us directly and some bends away from and toward us. It happens so fast that it gives a twinkling effect.
If you are in a large empty field such that the horizon is visible to you, you will notice that stars in this region appear to twinkle a lot more than stars right overhead. Why do you think this happens? Why do stars twinkle more when viewed from such places? It is because there are more layers of the atmosphere between you and the star in this direction. Therefore, more series of refractions
why planets do not twinkle?
Planets do not twinkle like stars because the distance between the planets and the earth is not far when compared to the distance between the stars and the earth. As the distance is less, the refraction of light won’t be much for planets. Thus, planets do not twinkle.
Explanation:
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