WebOct 22, 2024 · The diameter of a circle is twice the radius, giving us a diameter for Earth of 12,756 km. Note: The Earth is almost, but not quite, a perfect sphere. Its equatorial radius is 6378 km, but its polar radius is 6357 km - in other words, the Earth is slightly flattened. Eratosthenes was measuring the polar radius, and his value (using the 0.15 … WebMar 9, 2024 · distance = 2 ⋅ R ⋅ a r c t a n ( a, 1 − a) where the latitude is $ \varphi $, the longitude is denoted as $ \lambda $ and $ R $ corresponds to Earths mean radius in kilometers which is approximately 6371 km. We …
What is the Surface Area of the Earth? - Universe Today
Web1 day ago · Math Geometry Find the volume of a cylinder that has a base with a radius of 6 meters and a height of 5 meters. Use π = 3.14 and round your answers to the nearest hundredth as needed Use π = 3.14 and round your answers to … Earth radius (denoted as R🜨 or $${\displaystyle R_{E}}$$) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid, the radius ranges from a maximum of nearly 6,378 km (3,963 mi) (equatorial radius, denoted a) to a minimum of nearly 6,357 km … See more Earth's rotation, internal density variations, and external tidal forces cause its shape to deviate systematically from a perfect sphere. Local topography increases the variance, resulting in a surface of profound complexity. Our … See more The following radii are derived from the World Geodetic System 1984 (WGS-84) reference ellipsoid. It is an idealized surface, and the Earth measurements used to calculate it … See more The Earth can be modeled as a sphere in many ways. This section describes the common ways. The various radii derived here use the notation and dimensions noted above for the … See more Earth's diameter is simply twice Earth's radius; for example, equatorial diameter (2a) and polar diameter (2b). For the WGS84 ellipsoid, that's respectively: • 2a = 12,756.2740 km (7,926.3812 mi), • 2b = 12,713.5046 km (7,899.8055 mi). See more Geocentric radius The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude φ: where a and b are, respectively, the equatorial radius … See more The mathematical expressions above apply over the surface of the ellipsoid. The cases below considers Earth's topography, above or below a See more The first published reference to the Earth's size appeared around 350 BC, when Aristotle reported in his book On the Heavens that mathematicians had guessed the circumference … See more how far is lakewood nj from me
Earth Radius by Latitude Calculator - Rechneronline
WebMathematically, Earth is a spheroid. Earth radius at sea level is 6378.137 km (3963.191 mi) at the equator. It is 6356.752 km (3949.903 mi) at the poles and 6371.001 km (3958.756 mi) on average. The height above sea level of the location is added. Please enter the latitude in decimal degrees, here you can convert coordinates. WebFeb 11, 2024 · The latest measurements indicate that the Earth has an equatorial diameter of 12,756 km (7926 mi), and a polar diameter of 12713.6 km (7899.86 mi). This is true for other planets in the Solar... WebMar 1, 2024 · R – Earth's radius (R = 6371 km); and; ... 5.3 arcseconds or 102 meters east of the Royal Observatory, Greenwich. This location serves as the International Reference Meridian, which also acts as the reference meridian for the Global Positioning System or GPS. The zero longitude line was moved to account for local gravitational effects. how far is lake waccamaw from whiteville nc