artificial satellite
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Timeline of artificial satellites and space probes
Timeline of artificial satellites and space probes ...
Sputnik, the first artificial satellite
A satellite is any object or body that orbits around another object. An artificial satellite is any human made object designed to orbit the Earth or any other celestial body.
Artificial Satellites and Space Probes
The long history of myths, dreams, fiction, science, and technology surrounding space travel culminated in the dramatic launching of the first artificial orbiting earth satellite, Sputnik 1, ...
[edit] Artificial satellites
Artificial satellites can also pass in front of, or transit, the Sun as seen from Earth, but none are large enough to cause an eclipse.
artificial satellite
A mechanical object launched by a rocket from Earth, which orbits a planet or a moon
asteroid ...
An artificial satellite which moves around the Earth at the same speed that the Earth rotates, so that it is always above the same part of Earth.
Syzygy
The position of the Moon in its orbit when at new or full phase.
Discovered by artificial satellites launched in the late 1950s, Earth's magnetosphere extends far above the atmosphere. Simply put, the magnetosphere is the region around a planet that is influenced by that planet's magnetic field.
Apart from many artificial satellites, the Earth has only one natural satellite, the Moon. We will talk about the Moon in the next chapter.
Around 1950, when artificial satellites began to be discussed in earnest, everybody expected them to be just burned-out upper stages of multistage rockets, carrying no radio transmitters but being tracked by radar from the Earth.
For the Moon or an artificial satellite moving around the Earth in an elliptical orbit, the distance between the object and the Earth changes throughout the orbit.
Perigee and apogee are used by some writers in referring to orbits of satellites, especially artificial satellites, around any planet or satellite, thus avoiding coinage of new terms for each planet and moon.
earth satellite (NASA SP-7, 1965) A body that orbits about the earth; specifically, an artificial satellite placed in orbit by man. earth shine (NASA SP-7, 1965) = earthlight.
Covers topics such as planets, comets, artificial satellites, cosmology, and telescopes. Also features an online bookstore on the subject. Window To The Universe Amazing Space KidsAstronomy.
Astrodynamics is the study and creation of orbits, especially those of artificial satellites.
Celestial navigation is a position fixing technique that was the first system devised to help sailors locate themselves on a featureless ocean.
Celestial mechanics analyzes the orbital motions of planets, comets, asteroids, and natural and artificial satellites within the solar system as well as the motions of stars and galaxies.
Sent to investigate the launch of Earth's first artificial satellite, Sputnik, the starship's impulse manifold began to malfunction during the third week of intelligence gathering, forcing the crew to attempt an emergency landing.
Sputnik 1 was the world's first Earth-orbiting artificial satellite.
It was the British science fiction writer Arthur Clarke who first proposed the use of this "synchronous" orbit, long before the first artificial satellites.
Sputnik 1 was the first artificial satellite successfully placed in orbit around the Earth. It was launched from Baikonur Cosmodrome at Tyuratam (370 km southwest of the small town of Baikonur) in Kazakhstan, then part of the former Soviet Union.
Korolev was responsible for the Sputnik program which in 1957 launched the first artificial satellite into orbit. Korolev was also in charge of the Vostok and Voskhod programs which proved manned space flight was possible.
A reconfigured camera can take wide-field exposures of astronomical objects (constellations, the Milky Way, zodiacal light, moving artificial satellites, meteor showers, variable stars, etc.) to reveal much fainter objects and structures than seen by ...
The station can be seen from the Earth with the naked eye, and, as of 2009, is the largest artificial satellite in Earth orbit, with a mass larger than that of any previous space station.
In the modern era there are many artificial satellites in orbit around the Earth and space probes visiting the different planets and satellites in the solar system.
the path followed by a moon, planet or artificial satellite as it travels around another body in space
Sentences:
Earth is in orbit around the sun, and our moon is in orbit around Earth.
All of the planets in the solar system orbit the sun.
The National Aeronautics and Space Administration of the United States has a program underway to develop a Terrestrial Planet Finder artificial satellite, which would be capable of detecting the planets with masses comparable to terrestrial planets.
Bright Asteroids Jovian Satellites Saturn's Titan Artificial Satellites
Orbital diagrams for the inner planets November 2009 to March 2010, April to July 2010, August to November 2010 and the outer planets for 2010.
Date (NZDT) ...
The first Sputnik mission was launched on on October 4, 1957; this was Earth's first artificial satellite. Sputnik 1 was about the size of a basketball, weighing roughly 183 pounds.
Launched from Earth in 1971, Mariner 9 was the first artificial satellite of Mars. It transmitted data and images to Earth from martian orbit for nearly a year. The probe's final transmission was in 1972.
The first Earthling in space blasted off on November 3, 1957. Sputnik 2, the world's second artificial satellite, was launched by the Soviet Union from the Baikonur Cosmodrome.
On February 14, 2000 at 10:33 AM EST the NEAR spacecraft was successfully inserted into orbit around 433 Eros, becoming the first artificial satellite of an asteroid.
Perigee:
The point in the orbit of the moon or artificial satellite nearest the earth.
Perihelion:
The point on an orbit nearest the sun.
The word "satellite" can also apply to an object placed into orbit around another object. In this century we have placed artificial satellites into orbit around the Earth, the Moon and several other planets.
The orbits of some of the planets (e.g., Venus) are ellipses of such small eccentricity that they are essentially circles, and we can put artificial satellites into orbit around the Earth with circular orbits if we choose.
The Roche limit for Earth is approximately 20,000 km above the surface. The reason why artificial satellites within this limit don't break apart is because they have significant tensile strength that overcomes Earth's tidal force on the vehicles.
The information about the Earth gathered from Galileo was meagre compared with that obtained by the swarm of artificial satellites that have orbited the globe throughout the space age, but it provided some unique portraits of the Earth as a planet.
The rings of Saturn lie inside Saturn's Roche limit and may be the debris of a demolished moon. The limit was first calculated by the French astronomer douard Roche (1820-83). Artificial satellites are too small to develop substantial tidal stresses.
 See also: Satellite, Earth, Orbit, Sun, Planet
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