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What is apparent solar time determined by?
Apparent solar time is determined by the position of the Sun in the sky, taking into account Earth's rotation and its elliptical orbit around the Sun. It is based on the Sun reaching its highest point in the sky at 12 noon, varying slightly throughout the year due to Earth's tilt and orbit.
What is time based on the average year round length of the apparent solar day?
Time is based on the average length of the apparent solar day, which is the time it takes for the Sun to return to the same position in the sky, as observed on Earth. This forms the basis for the 24-hour day cycle that we use to structure our activities.
What is a mean solar day?
It's the average length of the "apparent solar day" throughout the year, 24 hours exactly for planet Earth.
During which two seasons is apparent solar time ahead of clock time?
Apparent solar time is ahead of clock time in the UK during the winter and spring seasons. This is due to the equation of time, which accounts for the variation in the Earth's orbit and axial tilt throughout the year.
Why do we use the mean solar day rather then the sidereal day to measure the time for one earth rotation?
We don't. The sidereal day IS used as the measure of the Earth's rotation. The mean solar day is used to regulate our daily lives because that's the average time for the Sun to complete its apparent daily journey round the sky. The difference is because the solar day takes into account the effect of the Earth's orbital motion which slightly alters the position of the Sun in the sky.
What is apparent solar time determined by?
Apparent solar time is determined by the position of the Sun in the sky, taking into account Earth's rotation and its elliptical orbit around the Sun. It is based on the Sun reaching its highest point in the sky at 12 noon, varying slightly throughout the year due to Earth's tilt and orbit.
Why is apparent solar time not used to measure on a clock?
Because, when using "apparent solar time", the length of a "solar day" varies slightly during the year. (This is because the Earth's orbit isn't exactly circular and the Earth's axis is tilted.) "Clock time" is based on an average (or "mean") of these day lengths, called the "mean solar day". So clocks use "mean solar time". (By coincidence, on the date the question was answered (14th April) "apparent solar time" and 'clock' time are synchronised.) There's another reason for apparent solar time being different from clock time. "Clock time" uses time zones. So, over a wide area, the time on a clock equals the "mean solar time" at a particular, defining, longitude.
The sun casts the shortest shadow of the day at noon acorrding to what?
Apparent solar time
What is time based on the average year round length of the apparent solar day?
Time is based on the average length of the apparent solar day, which is the time it takes for the Sun to return to the same position in the sky, as observed on Earth. This forms the basis for the 24-hour day cycle that we use to structure our activities.
What is mercury's solar day about?
Mercury's solar day is about 176 Earth days. That's the time taken by the Sun to complete one apparent trip round the sky.
What a day about as long as a day on earth?
Mars has a similar day length to Earth, a little longer at 24h 39m 35s (apparent solar day)
What is the relationship between apparent solar time and mean solar time?
The Earth "day" of exactly 24 hours is the "mean solar day""Mean" is basically a scientific way of saying "average". It's called a "solar day " because it's based on the position of the Sun in the sky.There are natural variations in the length of the solar day because of the Earth's elliptical orbit and axial tilt.The "mean solar day" averages out the variations that happen during the year.This makes things much more convenient for everyday life."Mean solar time" is based on the "mean solar day".The "apparent solar day" is the what we actually observe, and its length varies from day to day.A sundial measures "apparent solar time". We can convert this time to mean solar time by using something called "the equation of time".Actually, the sundial shows "local apparent solar time".That's because the time shown by a sundial depends on its exact longitude.For convenience, mean solar time has time zones (based on longitude).So, longitude also affects the relationship between these twomeasures of time.
Why is apparent solar time used to measure time on a clock?
Because, when using "apparent solar time", the length of a "solar day" varies slightly during the year. (This is because the Earth's orbit isn't exactly circular and the Earth's axis is tilted.) "Clock time" is based on an average (or "mean") of these day lengths, called the "mean solar day". So clocks use "mean solar time". (By coincidence, on the date the question was answered (14th April) "apparent solar time" and 'clock' time are synchronised.) There's another reason for apparent solar time being different from clock time. "Clock time" uses time zones. So, over a wide area, the time on a clock equals the "mean solar time" at a particular, defining, longitude.
What is a mean solar day?
It's the average length of the "apparent solar day" throughout the year, 24 hours exactly for planet Earth.
Planet with the period of revolution closest to Earth's?
Mars has a similar day length to Earth, a little longer at 24h 39m 35s (apparent solar day).
Which planet rotates almost the same as earth?
Mars. It has a similar day length to Earth, a little longer at 24h 39m 35s (apparent solar day).
During which two seasons is apparent solar time ahead of clock time?
Apparent solar time is ahead of clock time in the UK during the winter and spring seasons. This is due to the equation of time, which accounts for the variation in the Earth's orbit and axial tilt throughout the year.
