What is the speed of the earth?
The earth is constantly in motion: it rotates around its axis and around the sun. Due to this, there is a change of day and night on the 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 what is the speed of the Earth around the Sun.
How fast does the earth spin?
For 23 hours, 56 minutes and 4 seconds, our planet makes a complete revolution around its axis, so this rotation is called the diurnal. Everyone knows that during this period of time on Earth, the day has time to change at night.
At the equator, the highest rotational speed, it is equal to 1670 km / h. But this speed cannot be called constant, since 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 rotation of the Earth around the Sun is about 108 000 km / h or 30 km / s. In orbit around the sun, our planet overcomes 150 ml. km Our planet makes a complete revolution around the star in 365 days, 5 hours, 48 minutes, 46 seconds, so every fourth year is a leap year, that is, one day is longer.
The speed of the Earth is considered a relative value: it can be calculated only relative to the Sun, its own axis, the Milky Way. It is impermanent and tends to change with respect to another space object.
An interesting fact - the length of the day in April and November differs from the standard by 0.001 s.