Stars shine with a steady light. They only seem to change their brightness due to the movement of air that causes the starlight to get slightly bent, hence the twinkling phenomenon.
Stars are hundreds or thousands of light years away from us, so they can be considered as point sources of lights. The light rays emitted by these stars enter into the earth's atmosphere and undergoes continuous refraction, because each layer of earth's atmosphere has different density. They go on refracting and the light rays reaching our eyes will be bended like an arc. Thus we see the stars in an apparent position, which is slightly different from the actual position. Due to continuous refraction the amount of light gets fluctuated. We see that the position is slightly altered. This causes the Twinkling effect.
No. The apparent twinkle you see is due to the Earth's atmosphere and the variations due to temperature, clouds and angle of viewing. There are some stars that are called variables or pulsars that have routine changes in brightness, but these are not normally visible to the naked eye.
Stars, except for the Sun, although they may be millions of miles in diameter, are very far away. They appear as point sources even when viewed by telescopes. The planets in our solar system, much smaller than stars, are closer and can be resolved as disks with a little bit of magnification (field binoculars, for example).
Since the Earth's atmosphere is turbulent, all images viewed up through it tend to "swim." The result of this is that sometimes a single point in object space gets mapped to two or more points in image space, and also sometimes a single point in object space does not get mapped into any point in image space. When a star's single point in object space fails to map to at least one point in image space, the star seems to disappear temporarily. This does not mean the star's light is lost for that moment. It just means that it didn't get to your eye, it went somewhere else.
Since planets represent several points in object space, it is highly likely that one or more points in the planet's object space get mapped to a points in image space, and the planet's image never winks out. Each individual ray is twinkling away as badly as any star, but when all of those individual rays are viewed together, the next effect is averaged out to something considerably steadier.
The result is that stars tend to twinkle, and planets do not. Other extended objects in space, even very far ones like nebulae, do not twinkle if they are sufficiently large that they have non-zero apparent diameter when viewed from the Earth.
A rule of thumb for astronomers is that stars twinkle and planets don't. This is because stars are so far away that the appears as points of light and the point source of light is affected by Earth's atmosphere. Planets are much closer and appear bigger than points and the reflected light is affected less by the atmosphere. The 'twinkles' are cancelled out.
No, when looked at through the Earth's atmosphere the point source of starlight (because stars are so far away) twinkle but as the planets of our solar system are nearer to us, they are not point sources of light and therefore under normal conditions the atmosphere will not make them twinkle.
The movement of the light makes the stars seem to twinkle
because when the light enters the atmosphere it goes in zigzags or long dot zigzags
twinkle stars
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Stars are not twinkling really. It is because of the atmosphere of the earth due to which they appear twinkling. However if they are seen from above the atmosphere of earth then they appear stationary.
Stars tend to change from one colour to another, as you put it, like a disco ball. This is because the heat inside the star is changing as the stars goes through different growth stages, eventually exploding.
Stars twinkle. Planets shine or glow steadily.
Stars 'twinkle', planets do not. This is due to the proximity of planets, the light from which does not pass through so much dust and vary accordingly.
Stars shine steadily, but the atmosphere distorts the point image so that it appears to "twinkle". Planets are not point-sources; they actually have a tiny-but-visible disk. So the atmospheric turbulence doesn't cause planets to twinkle nearly as much.
Both twinkle - even the sun does. However the relative size, as seen from Earth, means that the amount of "twinkle" is far more apparent for a star than for a planet. there is an apparent change in position of stars , so they seem to twinkle
All stars twinkle in our sky because of turbulence in the atmosphere of the Earth. As the atmosphere churns, the light from the star is refracted in different directions. This causes the star's image to change slightly in brightness and position, and thus twinkle. The "Stars" that do not twinkle are the planets in our Solar System except for Venus. Venus twinkles for it has massive clouds that move very fast that causes the twinkle to our eyes.
twinkle twinkle little stars? twinkle twinkle little stars?
yes they do if u want proof go look it up You mean "Do stars in the .....". Yes, all stars twinkle because they produce their own light. Planets don't twinkle because they simply reflect the light from their mother star.
Planets move, may have a very very slight color tinge, and they twinkle more than stars. you gotta reeeally look close to see it with the naked eye.
That`s because of small disturbances in the earths atmosphere. Planets don`t twinkle because their light is stronger, whereas the light of stars is weak enough to have their light slightly bent by the moving atmosphere.
Not really. A star seems to twinkle because its light all comes from a single tiny pointand has to go through Earth's turbulent atmosphere. Planets don't twinkle, becausetheir light comes from a larger point. And in orbit or on the moon, stars don't either.They do not -so viewing them from space they do not.Only viewing them from Earth do theydo that, due to the atmosphere interference.No, stars really don't twinkle in the sky. The reason that stars seem to twinkle when you look at them is because there is a lot of atmosphere between you and the clouds. This causes the stars to disappear for a fraction of a second and reappear, making them seem to twinkle.No, stars really don't twinkle in the sky. The reason that stars seem to twinkle when you look at them is because there is a lot of atmosphere between you and the clouds. This causes the stars to disappear for a fraction of a second and reappear, making them seem to twinkle.
Stars are so far away that they appear as a single pinpoint of light. When the light varies as it passes through the atmosphere, we see it twinkle. Planets are closer and are perceived (by the eye) as multiple rays of light. When the multiple rays change in intensity, the eye sees the average of the multiple intensities and therefore no twinkle.
When you look at the stars through any substantial atmosphere (mixture of gases), they appear to twinkle, and they're not visible during the day. When you look at the stars through no gas, like from the Hubble Telescope or from the surface of the moon, they're visible all the time, day and night, even when the sun is also in the sky, and they don't twinkle.