Apsis - Wikipedia
网页Earth's two apsides are the farthest point, aphelion, and the nearest point, perihelion, of its orbit around the host Sun. The terms aphelion and perihelion apply in the same way to the orbits of Jupiter and the other planets, the comets, and the asteroids of the Solar System. Part of a series on.
Lunar Perigee and Apogee - timeanddate.com
网页The point on the Moon's orbit closest to Earth is called the perigee and the point farthest away is the apogee. Find the Moon's distance from your location. The Moon: Our natural satellite
Orbit of the Moon - Wikipedia
网页The orbit of the Moon is a nearly circular ellipse about Earth (the semimajor and semiminor axes are 384,400 km and 383,800 km, respectively: a difference of only 0.16%). The equation of the ellipse yields an eccentricity of 0.0549 and perigee and apogee distances of 362,600 km (225,300 mi) and 405,400 km (251,900 mi) respectively (a difference of 12%).
Calculate Satellite Apogee and Perigee Heights - Cosmo Arena
网页Apogee and Perigee are terms used in orbital mechanics to describe specific points in a satellite's orbit around the Earth: Apogee: This is the highest point in a satellite's orbit above the Earth's surface. It represents the point where the satellite is …
ESA - Types of orbits - European Space Agency
网页2020年3月30日 · The point farthest away from the Earth on the blue elliptical orbit is called the apogee and the point closest is called the perigee. When the payload reaches the apogee at the GEO altitude of 35 786 km, it fires its engines in such a way that it enters onto the circular GEO orbit and stays there, shown by the red line in the diagram.
What Are Perigee and Apogee? When Are Perigee and Apogee?
网页The point at which the Moon is farthest from Earth each month is called its apogee (this varies throughout the year as well). According to NASA, “During every 27-day orbit around Earth, the Moon reaches both its perigee, about 226,000 miles (363,300 km) from Earth, and its farthest point, or apogee, about 251,000 miles (405,500 km) from Earth
Apogee – Definition & Detailed Explanation - Sentinel Mission
网页2024年4月12日 · Apogee is a term used in astronomy to describe the point in an object’s orbit when it is farthest from the body it is orbiting. This can refer to the moon’s farthest point from Earth, a satellite’s farthest point from Earth, or a planet’s farthest point from the sun. In simple terms, apogee is the highest point in an object’s orbit.
Apogee | COSMOS - Swinburne
网页The point of maximum separation from the Earth is known as the apogee (from the Greek apo = away from). At this point in the orbit, the object is moving at its slowest speed (Kepler’s Second Law). The apogee refers specifically to orbits around the Earth, and is equivalent to the apoapsis of a general orbit.
What Is an Orbit? | NASA Space Place – NASA Science for Kids
网页2024年9月17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 .
What is apogee? | How Things Fly - Smithsonian Institution
网页2013年1月16日 · What is apogee? Apogee is a term describing when an orbiting body is farthest away from Earth. Most orbiting objects like the Moon do not follow a perfectly circular orbit, but instead an elliptical shape, which …