WebJul 6, 2024 · Earth has a diameter of roughly 8,000 miles (13,000 kilometers) and is mostly round because gravity generally pulls matter into a ball. But the spin of our home planet … WebUnno is about 5.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay. No Close Approaches. Unno's orbit is 1.34 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.
Derek Newsome on Twitter: "RT @relativityspace: Terran R newly …
WebDec 20, 2024 · Diameter (km or miles) - The diameter of the planet at the equator, ... The ecliptic plane is defined as the plane containing the Earth's orbit, so the Earth's inclination is 0. Orbital Eccentricity - This is a measure of how far a planet's orbit about the Sun (or the Moon's orbit about the Earth) is from being circular. The larger the ... WebMar 31, 2024 · Pluto Observational Parameters Discoverer: Clyde Tombaugh Discovery Date: 18 February 1930 Distance from Earth Minimum (10 6 km) 4284.7 Maximum (10 6 km) 7528.0 Apparent … 2d 拓扑地图
Planet Earth — Everything you need to know Space
The name Earth is at least 1,000 years old. All of the planets, except for Earth, were named after Greek and Roman gods and goddesses. However, the name Earth is a Germanic word, which simply means “the ground.” See more Earth has a very hospitable temperature and mix of chemicals that have made life abundant here. Most notably, Earth is unique in that most of our planet is covered in liquid water, since the temperature allows … See more With a radius of 3,959 miles (6,371 kilometers), Earth is the biggest of the terrestrial planets and the fifth largest planet overall. From … See more Earth is the only planet that has a single moon. Our Moonis the brightest and most familiar object in the night sky. In many ways, the Moon is responsible for making Earth such a great … See more As Earth orbits the Sun, it completes one rotation every 23.9 hours. It takes 365.25 days to complete one trip around the Sun. That extra quarter of a day presents a challenge to our … See more WebOct 4, 2024 · This article is part of the NASA Knows! (Grades 5-8) series. Earth is our home planet. Scientists believe Earth and its moon formed around the same time as the rest of the solar system. They think that was about 4.5 billion years ago. Earth is the fifth-largest planet in the solar system. Its diameter is about 8,000 miles. 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 miles: 4,220 miles: Tilt of Axis: 23.5 … 2d 旋转公式