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How and why does a day measured with respect to the Sun differ from a day measured with respect to the stars?
Wiki User
∙ 13y ago
The day measured by the stars (the sideal day) is about 4 minutes shorter than the day measured by the Sun (the solar day) because it takes 4 minutes for the Earth to rotate the extra amount required for the Sun to return to the same place in the sky. The extra 4 minutes is due to the fact that each day the Earth moves along in its orbit around the Sun.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoOne "day", of 24 hours, is actually a little longer than one rotation of the Earth. The 24-hour day, called a "solar day", is in reference to the position of the Sun in the sky.
A "sidereal day", which is exactly one rotation of the Earth with respect to the stars, is 23 hours 56 minutes.
Wiki User
∙ 14y agoPresumably because day (as in daylight) and night is caused by the sun and not by the stars, and the light/dark change is the most relevant to humans.
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What stars orbit the sun?
Stars do not orbit the sun.
Is all stars are sun?
All stars are sun or sun is the star both are same.
Is the sun the hottest among all-stars?
No, the sun is not the hottest of all stars. There are stars that are up to 7 times hotter than the sun.
What are the sizes of different stars?
Size of Stars Stars differ in size. Some stars have diameters of only 20 km. These stars are very much smaller than the earth. Our sun is just a medium-sized star. Many stars are much larger than the sun. Astronomers classify according to size. Supergiants are the largest known stars. The star Antares has a diameter 330 times that of the sun. The sun has a diameter of 1 392 000 km. Some supergiants have diameters about 1000 times of the sun. Giants are stars with diameters from 10 to 100 times that of the sun. The star Aldebaran is a giant with a diameter about 45 times that of the sun. Medium-sized stars are about the size of the sun. Their diameters range from 139 200 km to 13 920 000 km. Sirius is a medium-sized star. White dwarfs are small stars with diameters of less than 10 000 km. The smallest white dwarf is Van Maanen's star with a diameter of 8370 km.
What kind of stars are cooler then the sun?
red stars are cooler than the sun
How does our sun differ from most ther main sequence stars?
Our Sun is approximately in the percentile 85 or 90, with respect to brightness and size. That means that approximately 85-90% of other stars are smaller and dimmer than our Sun.
What does sidereal mean?
Adjective Of or with respect to the stars (i.e., the fixed stars, not the sun or planets).
Stars and sun who is biggest?
Our Sun is just another star - above average, with respect to its brightness, but really nothing extraordinary, as stars go. Some stars are bigger than the sun, and some are smaller.
How does the sun differ in size and temperature from other stars like rigel?
The sun is much smaller and cooler.
How does the size of your Sun compared to the size of other stars in the night sky?
Some stars are much larger than our Sun - up to several hundred times its diameter - some are smaller than it. Most, however, are smaller; the Sun is in the top 10% with respect to mass, and probably also with respect to diameter. The large majority of stars is of the "red dwarf" type.Some stars are much larger than our Sun - up to several hundred times its diameter - some are smaller than it. Most, however, are smaller; the Sun is in the top 10% with respect to mass, and probably also with respect to diameter. The large majority of stars is of the "red dwarf" type.Some stars are much larger than our Sun - up to several hundred times its diameter - some are smaller than it. Most, however, are smaller; the Sun is in the top 10% with respect to mass, and probably also with respect to diameter. The large majority of stars is of the "red dwarf" type.Some stars are much larger than our Sun - up to several hundred times its diameter - some are smaller than it. Most, however, are smaller; the Sun is in the top 10% with respect to mass, and probably also with respect to diameter. The large majority of stars is of the "red dwarf" type.
How does our sun differ from most other main sequence?
sun doesn't preform binary systems.binary systems: are when one or more stars rotates around the sun. which our most common stars have done, except the sun.
Why does Jupiter change position to the stars?
All the planets (Greek for "wanderer") change position with respect to the stars. The reason is that they orbit the sun, as does the earth.
How does your differ from most other main sequence stars?
I guess you mean "our Sun". It is in no way unique - there are both larger and smaller stars for example. The only important thing about itb - at least for us - is that it is OUR Sun.
Sun is one of the star but star is differ from sun by distance?
If I understand the question correctly, the answer is YES. There are billions of stars. The earth happens to rotate round the one that we call the sun. All other stars are all a lot further away.
In size compared to other stars the mass of our sun is?
Our Sun is well above the median; probably somewhere around percentile 85 or 90, both with respect to mass and diameter. That means that 85% or 90% of the stars are smaller than our Sun.
Why is the sun's motion with respect to the stars not very obvious?
Our Sun (and the rest of our solar system) doesn't move all that fast when compared to the vast distances to even the nearer stars, and our relatively short human lifetimes.
What is the time taken for the moon to orbit the earth in days?
Moon's orbital period . . . With respect to the distant fixed stars . . . 27.32 days With respect to the sun & the phases of the moon . . . 29.53 days
