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13 Feb 2012 18:21:51 IST

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Why an stars twinkle?

Physics

I have not got any proper answer to this question yet. Some body please help me. I'll be thankfull to you.

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Lokesh Kumar

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13 Feb 2012 18:25:12 IST

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Sorry for the mistake, the question is :WHY DO STARS TWINKLE?

Lokesh Kumar

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13 Feb 2012 18:25:41 IST

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Sorry for the mistake, the question is :WHY DO STARS TWINKLE?

sathyaram

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13 Feb 2012 18:31:15 IST

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due to the atmospheric refraction,the apparent postion of star fluctuates.This appears to our eyes as twinkling

sathyaram

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13 Feb 2012 18:32:10 IST

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it is also located at a very large distance and it passes through various atmospheric levels of different densities...

Lokesh Kumar

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13 Feb 2012 18:43:15 IST

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But if it is due to refraction then also light coming from it must have a specific path of refracted ray.

srinivasan

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13 Feb 2012 19:11:08 IST

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see ncert text book class 10

Lokesh Kumar

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13 Feb 2012 19:31:20 IST

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Very disappointing answer. If you are not interested in discussion them please quit. I want an answer which can withstand my arguements or prove my arguements wrong.

jayasankari

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13 Feb 2012 20:35:25 IST

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see wikipedia

jayasankari

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13 Feb 2012 20:35:27 IST

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see wikipedia

Sana Irfan

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13 Feb 2012 22:37:13 IST

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the light entering the earth's atmosphere is made up of various light rays which r further made up of different wavelengths that refract at different angles tracing different paths and thus we get twinkling of stars

Chirag Shekhar

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13 Feb 2012 22:57:52 IST

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Atmospheric refraction. The relative refractive index changes constantly in successive layers of our atmosphere, due to changes in temperature etcSo, for once your eye traces it to be at some position and the other moment in the other one, because the path of the refracted ray reaching your eye is slightly altered. Also, due to the same reason, the apparent intensity is altered as well. (Since nature of interaction between media changes, and so the 'amount' of light reflected and refracted changes)

Sana Irfan

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14 Feb 2012 08:15:23 IST

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i apologise as the answer by was wrong,.

sun doesnt twinkle y?as it is also a star so it should also undergo the same process

Vishal Mahuli

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14 Feb 2012 14:29:11 IST

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Stars do not twinkle actually.. they appear to twinkle due to atmospheric refraction.. Since the light from the stars has to travel a long distance through different layers of atmosphere, the light gets dispersed as well as refracted, now, this when reaches our eyes causes this sensation.

chandan gautam

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17 Feb 2012 13:59:31 IST

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The movement of air (sometimes called turbulence) in the atmosphere of Earth causes the starlight to get slightly bent as it travels from the distant star through the atmosphere down to us on the ground. This means that some of the light reaches us directly and some gets bent slightly away. To our eyes, this makes the star seem to twinkle.

venkat musunuru

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17 Feb 2012 14:41:51 IST

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see ncert text

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