Orbit - Wikipedia
In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an object [1] such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as a planet, moon, asteroid, or Lagrange point.
What Is an Orbit? | NASA Space Place – NASA Science for Kids
2024年11月8日 · An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like Earth or the Moon. Since the Earth orbits the Sun, you’re actually in orbit right now! Many planets, like Earth, have moons that orbit them.
What Is an Orbit? (Grades 5-8) - NASA
2010年7月7日 · An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like Earth or the moon. Many planets have moons that orbit them. A satellite …
Earth's orbit - Wikipedia
Earth orbits the Sun at an average distance of 149.60 million km (92.96 million mi), or 8.317 light-minutes, [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 (584 million mi). [2] .
Chapter 5: Planetary Orbits - NASA Science
Upon completion of this chapter you will be able to describe in general terms the characteristics of various types of planetary orbits. You will be able to describe the general concepts and advantages of geosynchronous orbits, polar orbits, walking orbits, Sun-synchronous orbits, and some requirements for achieving them.
Explainer: All about orbits - Science News Explores
2022年5月3日 · orbit: The curved path of a celestial object or spacecraft around a galaxy, star, planet or moon. One complete circuit around a celestial body. perihelion: The point in the orbit of a planet, comet or other object at which it is closest to the sun.
Orbit - Education | National Geographic Society
2024年4月4日 · An orbit is a regular, repeating path that one object takes around another object or center of gravity. Orbiting objects, which are called satellites, include planets, moons, asteroids, and artificial devices.
Webb's Orbit - Science@NASA
Webb orbits the sun 1.5 million kilometers (1 million miles) away from the Earth at what is called the second Lagrange point or L2. (Note that this graphic is not to scale.) James Webb Space Telescope orbit as seen from above the Sun's north pole and as seen from Earth's perspective.
What Is An Orbit & How Do They Work? ⧂ - Spaceopedia
An orbit is a curved path in space that an object repeatedly makes as it goes around another larger object. This occurs because as an object (like a planet or moon) attempts to travel in a straight line through space, its path is curved towards the larger object (like the Sun) due to its mass and gravity.
Orbit | Astronomy, Physics & Mathematics | Britannica
2024年10月9日 · Orbit, in astronomy, path of a body revolving around an attracting centre of mass, as a planet around the Sun or a satellite around a planet. In the 17th century, Johannes Kepler and Isaac Newton discovered the basic physical laws governing orbits; in the 20th century, Albert Einstein’s general