What is the speed of the Earth?
The earth is constantly in motion: it rotates around its axis and around the Sun. It is because of this that there is a change of day and night on earth, as well as a change of seasons. Let's talk in more detail about the speed with which the Earth moves around its axis and the speed of the Earth around the Sun.
At what speed does the Earth rotate?
For 23 hours, 56 minutes and 4 seconds, our planetmakes a complete revolution around its axis, so this rotation is called daily. Everyone knows that during this period of time on Earth the day has time to change at night.
At the equator, the highest speed of rotation, itis equal to 1670 km / h. But this speed can not be called constant, as it varies in different parts of the planet. For example, the lowest speed at the North and South poles - it can fall to zero.
The speed of the Earth's rotation around the Sun isapproximately 108,000 km / h or 30 km / s. In the orbit around the Sun our planet overcomes 150 ml. km. The complete revolution around the star is made by our planet for 365 days, 5 hours, 48 minutes, 46 seconds, so every fourth year is a leap year, ie one day longer.
The speed of the Earth is considered relative: it can only be calculated with respect to the Sun, its own axis, the Milky Way. It is impermanent and has the property of changing in relation to another cosmic object.
An interesting fact is that the duration of the day in April and November differs from the standard ones by 0.001 s.