Earth circumference miles
WebUnderstanding the circumference of the earth is important for many reasons, including navigation, planning for space missions, and measuring distances around the globe. ... Eratosthenes was able to calculate that Earth’s circumference was 40,010 km (24,902 miles). This number is remarkably close to modern calculations which put Earth’s ... WebOct 22, 2024 · This means that Eratosthenes estimated the circumference of the Earth to be about 40,000 km. He also knew that the circumference of a circle was equal to 2 …
Earth circumference miles
Did you know?
WebJan 11, 2024 · 7.2°/360° = 1/50. So, if 804 km or 500 mi. (or 5,000 stadia for Eratosthenes) was 1/50th, multiplication gives you the earth's circumference: 500 mi. x 50 = 25,000 mi. 804 km x 50 = 40,200 km. And for any of you ancient Greeks out there, 5,000 stadia x 50 = 250,000. stadia. The earth, as we said, is an oblate spheroid, so geodesists ... WebJan 31, 2024 · r r — Earth's radius, equal to 3959 miles or 6371 km. This equation can be derived using the Pythagorean theorem. You can try to derive it yourself – it is not that …
WebSince the Earth is flattened at the poles and bulges at the equator, geodesy represents Earth's shape with an oblate spheroid. The oblate spheroid, or oblate ellipsoid, is an ellipsoid of revolution obtained by rotating an ellipse about its shorter axis. It is the regular geometric shape that most nearly approximates the shape of the Earth. WebThe distance to Mars varies from about 56 million kilometers (about 35 million miles) to 400 million kilometers (about 249 million miles). Why the difference? And why so close now?
WebMar 1, 2024 · To calculate the distance between two points given longitude and latitude coordinates: Write down each point's coordinates in degrees-only format. We'll call θ and φ to their respective latitude and longitude components. Input them in the haversine distance formula: d = 2R × sin⁻¹ (√ [sin² ( (θ₂ - θ₁)/2) + cosθ₁ × cosθ₂ × sin² ( (φ₂ - φ₁)/2)]). WebThe earth is almost 25 000 miles in circumference. 地球的周长大约为25 000英里。 ... The earth's circumference is about 25,000 miles. 地球的圆周约为25,000英里.
WebOne complete orbit takes 365.249 days (1 sidereal year), during which time Earth has traveled 940 million km (584 million mi). As seen from Earth, the planet's orbital prograde motion makes the Sun appear to move with …
WebThe circumference of the Earth at the equator is 24,901.55 miles (40,066.59 kilometers). Due to the irregular, ellipsoid shape of the Earth, a line of longitude wrapped around the Earth going through the north and south poles is 24,859.82 miles (40,000 kilometers). Therefore, the Earth is a little bit (about 41 miles [66 kilometers]) wider than ... rbc open account $300rbc open a new accountWebAccording to space.com,(which is the source Google uses) the earth's circumference is 24,901 miles. According to National Geographic it is 24,902 miles and according to your … rbc open direct investingWebApr 12, 2024 · Mercury is small with an equatorial circumference of 9,525.1 miles (15,329.1 km), a little more than 1/3 the width of Earth. It is the closest planet to our Sun at an average distance of 36 million miles (58 million kilometers or 0.4 AU). Mercury’s axis is tilted just 2 degrees, meaning little to no seasonal variations. rbc open an account onlineWebJan 15, 2024 · Circumference Measured at the equator, the circumference of the Earth is 24,901.55 miles. However, the Earth is not quite a perfect circle, and if you measure through the poles, the … rbc open direct investing accountWebJul 6, 2024 · Earth's polar radius is 3,950 miles (6,356 km) — a difference of 13 miles (22 km). Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km).... rbc open a business accountWebSep 7, 2024 · In 200 B.C. Eratosthenes estimated Earth’s circumference at about 46,250 kilometers (28,735 miles). Today we know our planet's circumference is roughly 40,000 … rbc open account offers