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Measured around the equator, it is 40,075.017 km (24,901.461 mi). Measured passing through the poles, the circumference is 40,007.863 km (24,859.734 mi). [1] Measurement of Earth's circumference has been important to navigation since ancient times. The first known scientific measurement and calculation was done by Eratosthenes, by comparing ...
The equatorial radius is often used to compare Earth with other planets. The Earth's polar radius b, or semi-minor axis: 11 is the distance from its center to the North and South Poles, and equals 6,356.7523 km (3,949.9028 mi). Location-dependent radii Three different radii as a function of Earth's latitude.
Earth is rounded into an ellipsoid with a circumference of about 40,000 km. It is the densest planet in the Solar System. Of the four rocky planets, it is the largest and most massive. Earth is about eight light-minutes away from the Sun and orbits it, taking a year (about 365.25 days) to complete one revolution.
156,000. Formed of two squares, approx. 120 by 100 m (390 by 330 ft) and 50 by 50 m (160 by 160 ft) Republiky Square. Mladá Boleslav. Czech Republic. 14,350. 154,500.
Aristarchus of Samos. Eratosthenes ( c. 276 – c. 194/195 BC ), a Greek mathematician who calculated the circumference of the Earth and also the distance from the Earth to the Sun. Hipparchus ( c. 190 – c. 120 BC ), a Greek mathematician who measured the radii of the Sun and the Moon as well as their distances from the Earth.
For example, on the equinox, the 0-degree angle from the North Pole and the 90-degree angle from the equator predict a Sun which would have to be located essentially next to the surface of a flat Earth, but the difference in angle between the equator and New York City would predict a Sun much further away if Earth is flat.
Directory. This template is to show size comparison of Jupiter, Neptune and the Earth alongside extrasolar planets that have their radial size confirmed. {{Planetary radius | radius = <!--simplified number of the radius (Jupiter equals 100px)--> }} Some planets might have a radius that would be hard to compare to Jupiter.
Earth orbit (yellow) compared to a circle (gray) Earth orbits the Sun at an average distance of 149.60 million km (8.317 light minutes, 92.96 million mi) [1] in a counterclockwise direction as viewed from above the Northern Hemisphere. One complete orbit takes 365.256 days (1 sidereal year ), during which time Earth has traveled 940 million km ...