General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 12)
12.
Planets do not twinkle because
Discussion:
25 comments Page 1 of 3.
Kriti said:
5 years ago
Right, Agree @Kamaraj M.
Cele said:
8 years ago
Why do star twinkle?
Sai manoj said:
8 years ago
Planets are not like a star. Every star is having their own light so they are twinkle but not like to twinkle because they near to earth so they are not noticeable the light.
Sharma said:
9 years ago
Twinkling of stars is due to the refraction of light.
Ihtesham said:
9 years ago
Yes,I agree with you @Kamaraj M.
Ravi kumar said:
10 years ago
Planet has not own light yet sunlight reflecting by them so they shine.
Chris B said:
10 years ago
The planets are much closer to the earth and are seen as extended sources. If we consider a planet as a collection of a large number of point sized sources of light, the total variation in the amount of light entering our eye from all the individual point sources will average out to zero. Thus nullifying the twinkling effect.
Ojum o hope said:
1 decade ago
Stars twinkle because they're so far away from Earth that, even through large telescopes, they appear only as pinpoints. And it's easy for Earth's atmosphere to disturb the pinpoint light of a star. Thus the stars twinkle. That is to say that planet do not twinkle, because they are nearer to earth.
Steve said:
1 decade ago
Planets don't twinkle (so much) because unlike distant stars, they are not "point sources" of light. A star is like a single pixel, and the atmosphere can distort the light of that pixel easily.
A planet is like 100's or even more pixels, so the distortion of a few of those pixels is too slight to notice. Sirius is brighter than most planets, and yet twinkles. So the "more light" explanation doesn't hold up.
A planet is like 100's or even more pixels, so the distortion of a few of those pixels is too slight to notice. Sirius is brighter than most planets, and yet twinkles. So the "more light" explanation doesn't hold up.
Zain said:
1 decade ago
Does our star, i.e.; sun twinkles? off course it does not appear to be. That's because it is very near to earth relative to other stars and hence a greater amount of light reached does not allow varying intensity so it does not twinkle. So far as I think logically, there is a close relation of twinkling with distance and thereby varying intensity. Tell me if I'm wrong. :-).
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