How many seconds are in 10,000 years, how many seconds are there in 20,000 years

Due to the perturbation of the planets and the Moon's gravity, the Earth's orbit is not very regular (and therefore the apparent motion of the Sun among the stars is also somewhat irregular). Thus, the time to pass through the selected point on the ecliptic twice in a row will vary from point to point, and the speed of the Earth in orbit will change (because the orbit is elliptical rather than circular). In addition, the position of the diurnal equinox in orbit will also change due to precession, with the result (as explained below) that the length of a return year will be related to the point chosen on the ecliptic to which the Sun must return (and when measured, will change along with the movement of the equinox).

So astronomers define a "flat return year" as the average length of the return year for all points on the ecliptic, and his length is days (metric). In addition, the year of return is clearly defined by special points on the ecliptic: the most special year is the year of the equinox, with the sun as the beginning and end point of the equinox, and its length is the day.

Other complex changes: we can choose how"Fixed the length of the day"to measure time in metric 86400 seconds, defined atomic hours, mechanical time defined by the motion of the moon and planets, mean solar day, or the rotation of the Earth relative to the Sun. If a clock is used to measure the time of the mean solar day, a longer stability can be obtained (compared to a clock day with a shorter stabilization period measured by a sundial).

Over the course of the year, it is necessary to use a weekday because the length of the solar day varies from day to day, as shown by the mean time difference.

Although the regression year or sidereal year will vary over a period of 10,000 years, since the value of the annual variation is on the order of milliseconds, the first 6 digits of the result obtained by LZ substituting a value with 31556926s A or similar precision are reliable numbers. As for the exact number that can be reached, there is no information on hand, and I haven't searched for it. It may not be possible to answer the question of LZ precisely at the current level of astronomy.

Because there are many factors that affect the length of the year, it is impossible to get an exact solution, and the longer the time, the more difficult it is to be accurate. Needless to say, I don't know if the previous observations are sufficient to calculate the accuracy of a certain period of history that is 10,000 years long.

The length of the year used by lz is also approximate. I used to get a regression year length accurate to milliseconds on CSDN, but I can't find it now. In fact, there are many factors that influence this result.

For example, the epoch was used in the past, but now it is used instead, and the last few digits of the length of the return year are different, and the result is different.

Each year of 10,000 years is counted as 365 days:

60 60x24 86400 copies per day.

86400 365 31536000 31536 10 to the 3rd power per year.

10,000 years; 31536 10 to the 3rd power 10 to the 4th power 31536 10 to the 7th power.

That is, 10,000 years have 31536 10 to the 7th power of seconds, that is, 31536 is followed by 7 zeros

Not conforming to reality is equal to zero, and there are no seconds for 10,000 years.

20,000 years has 630720000000 seconds.

The surplus time of a year is 365 days in a day, 24 hours in a day, and 8,760 hours in an hourly year. How many hours are in 20,000 years, that is, multiply 8,760 times 20,000, it is 175,200,000 hours, which is read as 175,200,000 hours. The history of human civilization is 5,000 years, which is equivalent to the history of four human civilizations.

There are 24 * 365 * 20,000 = 175,200,000 hours in 20,000 years.

175200000 hours * 60 minutes * 60 seconds * = 630720000000 seconds.

Summary. How many seconds is a thousand years, let me do the math for you. There are 365 days a year, 24 hours a day, 60 minutes per hour and 60 seconds per minute.

So, a thousand years is equal to 365 days, 24 hours, 60 minutes, 60 seconds = 31,536,000 seconds. How many seconds is a thousand years, let me do the math for you. There are 365 days a year, 24 hours a day, 60 minutes per hour and 60 seconds per minute.

So, a thousand years is equal to 365 days, 24 hours, 60 minutes, 60 seconds = 31,536,000 seconds.

How many seconds is a thousand years, let me calculate it for you. There are 24 hours a day, 365 days a year, 60 minutes per hour, and 60 seconds per minute. So, a thousand years is equal to 365 days, 24 hours, 60 minutes, 60 seconds = 31,536,000 seconds.

How many seconds is a thousand years, let me do the math for you. There are 24 hours a day, 365 days a year, 60 minutes per hour, and 60 seconds per minute. So, a thousand years is equal to 365 days, 24 hours, 60 minutes, 60 seconds = 31,536,000 seconds.

Can you tell us more about that?

How many seconds is a thousand years, let me calculate it for you. There are 365 days in a year, 24 hours a day, 60 minutes per hour, and 60 seconds per minute of the spine quiver. So, a thousand years is equal to 365 days, 24 hours, 60 minutes, 60 seconds = 31,536,000 seconds.

There are 6307200000000000 seconds in 20 million years. 28 days in February in a normal year, 29 days in February in a leap year, 1 minute = 60 seconds, 365 days in a year in a normal year, 366 days in a leap year 1 hour = 3600 seconds, 20 million years are calculated to be 6307200000000000 seconds.

Hello! The calculation is as follows: 1 year is 365 days, 5 hours, 48 minutes and 46 seconds = 365x24x3600 + 5x3600 + 48x60 + 46 = 31536000 + 18000 + 2880 + 46 = 315569261 billion years = 10 to the 8th power of the bend pin to the 15th power of the year burial judgment = I have not calculated such a complex addition and multiplication operation for a long time.

Whether the result is correct or not, I am not confident. Please.

31536000000000000 seconds. According to the time conversion, 1 minute has 60 seconds, 1 day has 86400 seconds, 1 year has 31536000 seconds, 100 million celery loss is equal to 1000000000 years, 31536000 times 1000000000 is equal to 315360000000000000 seconds, so 100 million years is equal to 3153600000000000000 seconds.

A year is 365 days, which is calculated based on the Earth's rotation around the Sun as a year. When the earth revolves around the sun, the stool quietly sends a little more than 365 days and 5 hours. About one day a year. A thousand years is equal to (seconds.)