The Earth is the third planet in the distance from the Sun (the third planet of the solar system).
The Earth, together with Mercury, Venus and Mars, forms the terrestrial group of planets of the solar system.
The Earth has one natural satellite - the Moon, as well as many artificial ones, the largest of which is the International Space Station.
The neighbors of the Earth are Venus and Mars.
The outer layer of the Earth is a hard shell composed mainly of silicates. The hard crust and viscous upper part of the mantle make up the lithosphere. Beneath the lithosphere is the asthenosphere, a layer of relatively low viscosity, hardness, and strength in the upper mantle. The earth has a pronounced liquid outer and solid inner core.
Earth is the only known planet with active plate tectonics.
Earth's orbit
The average distance from the Earth to the Sun is about 150 million kilometers (1 astronomical unit).
Perihelion (orbital point closest to the Sun): 147.098 million kilometers (0.983 astronomical units)
Aphelios (orbital point farthest from the Sun): 152.098 million kilometers (1.017 astronomical units).
The average speed of the Earth in orbit is 29.783 kilometers per second.
The planet makes one revolution around the Sun in 365.26 days.
The length of a day on Earth is 23 hours 56 minutes 4.1 seconds.
The direction of rotation of the Earth corresponds to the direction of rotation of all (except Venus and Uranus) planets in the solar system.
Physical characteristics of the Earth
Earth is the fifth largest planet in the solar system.
The temperature on the Earth's surface ranges from -89.2 to + 56.7 ° C.
The equatorial radius of the Earth is 6378.1 kilometers.
The surface area of the Earth is 510.072 million square kilometers.
The average density of the Earth is 5.5153 grams per cubic centimeter.
The acceleration due to gravity on Earth is 9.78 meters per second squared, or 0.99732g.
The mass of the Earth is 5.9726 x 10 x 24 kilograms.