Web18 dec. 2024 · Earth’s polar radius is 3,950 miles (6,356 km) — a positive change of 13 miles (22 km). Using individuals measurements, the tropical circumference of Earth is all about 24,901 miles (40,075 km). However, from pole to pole — the meridional circumference — Earth is just 24,860 miles (40,008 km) around. 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 … Meer weergeven 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. … Meer weergeven 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 have an uncertainty of ±2 m in both the equatorial and polar dimensions. … Meer weergeven The Earth can be modeled as a sphere in many ways. This section describes the common ways. The various radii derived here use the … Meer weergeven Earth's diameter is simply twice Earth's radius; for example, equatorial diameter (2a) and polar diameter (2b). For the WGS84 … Meer weergeven Geocentric radius The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude φ: Meer weergeven The mathematical expressions above apply over the surface of the ellipsoid. The cases below considers Earth's topography, above or below a reference ellipsoid. As such, they … Meer weergeven The first published reference to the Earth's size appeared around 350 BC, when Aristotle reported in his book On the Heavens that … Meer weergeven
Low Earth orbit - Wikipedia
WebHere is how to calculate for the Earth’s curvature without using a curvature calculator: For this example, let’s assume that the Earth has a spherical shape with a radius of 3,963 miles. If you’re at point P on the surface of the Earth, then move tangent to the surface a distance of one mile, in order to form a right triangle. WebThe calculator below calculates Earth radius at a given latitude. In fact, of course, it calculates the radius of WGS 84 reference ellipsoid at a given latitude, and if you want … phillip birchfield
How Many Miles Around the Earth? - Universe Today
WebThe short answer is around 24.901 miles. The mean radius of Earth is at around 3.958 mi / 6.371 km, slightly larger than Venus, almost twice the radius of Mars and about three times that of Mercury. If you started … WebEARTH MARS; Average Distance from Sun: 93 million miles: 142 million miles: Average Speed in Orbiting Sun: 18.5 miles per second: 14.5 miles per second: Diameter: 7,926 … Earth is the third planet from the Sun and the only place known in the universe where life has originated and found habitability. While Earth may not contain the largest volumes of water in the Solar System, only Earth sustains liquid surface water, extending over 70.8% of the Earth with its ocean, making Earth an ocean world. Earth's polar regions currently retain most of all other water with large sh… phillip birdsong