I. verb
COLLOCATIONS FROM OTHER ENTRIES
geostationary orbit
orbit
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The Earth orbits the Sun once a year, and the Moon orbits the Earth approximately every 27 days.
the Earth’s orbit
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The rocket left the Earth's orbit and set off to Mars.
COLLOCATIONS FROM CORPUS
■ ADVERB
around
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According to the theory, negatively charged electrons within atoms orbit around positively charged nuclei.
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Astronomers have observed many systems in which two stars orbit around each other, attracted toward each other by gravity.
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They also observe systems in which there is only one visible star that is orbiting around some unseen companion.
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As the Moon orbits around the Earth it exerts its gravitational pull as illustrated: 1.
■ NOUN
earth
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Although the exchanged particles are virtual, they certainly do produce a measurable effect-they make the earth orbit the sun!
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Copernicus did not even try to convince people that the Earth really orbited the Sun.
electron
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According to the theory, negatively charged electrons within atoms orbit around positively charged nuclei.
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Top: Model of a two dimensional electron wave orbiting a nucleus of hydrogen.
moon
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As the Moon orbits around the Earth it exerts its gravitational pull as illustrated: 1.
planet
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Preliminary evidence suggested that a second planet was also orbiting the star further out.
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They regard such wobbles as responses to the gravitational tugs of planets orbiting around them.
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On some planets orbiting these stellar furnaces skies beget clouds, oceans fill with water and, sometimes, life begins.
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Certainly, evidence of intelligent civilizations on planets orbiting distant stars would be an epochal event in human history.
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Johannes Kepler was the first person to realize that the planets orbit the Sun in just such paths.
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The planet Mercury orbits the Sun more closely than do any of the others.
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Electrons you could see as tiny planets orbiting round an even tinier sun.
s
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Surprisingly, it follows a Lagrange point on Mars' s orbit .
satellite
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You share it with dolphins and whales and albatrosses and the lonely satellite orbiting overhead.
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Within a very few years, there should be commercial satellites in orbit capable of image resolutions down to less than 4m.
sun
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Although the exchanged particles are virtual, they certainly do produce a measurable effect-they make the earth orbit the sun !
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Billions of asteroids orbit the sun in a belt between the orbits of Mars and Jupiter.
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Johannes Kepler was the first person to realize that the planets orbit the Sun in just such paths.
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The planet Mercury orbits the Sun more closely than do any of the others.
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Copernicus did not even try to convince people that the Earth really orbited the Sun .
EXAMPLES FROM OTHER ENTRIES
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The satellite will orbit the Earth for the next 15 years.
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The team confirmed the discovery of a planet orbiting the star 51 Pegasi.
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Venus orbits the sun once every 225 Earth days.
EXAMPLES FROM CORPUS
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Another insight has arisen out of studies of the logistics of deep-space missions that must return to orbit about Earth.
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It orbits closer to the fires of the Sun than any other planet, well inside the orbit of Venus.
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Now, thought Floyd, we are on our own, more than half-way to orbit .
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On some planets orbiting these stellar furnaces skies beget clouds, oceans fill with water and, sometimes, life begins.
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Some years later Newton, using his newly discovered law of gravity, proved that all objects must orbit in elliptical paths.
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The Cassini mission currently under preparation is intended to orbit Saturn.
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The moons of Jupiter can be seen to orbit Jupiter and not the earth.
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Women orbited about surfers on the beach; they clung to them in cars; they occupied their houses in loose liaisons.
II. noun
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
circular
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Similarly, radial burns can be used to convert circular orbits into elliptical ones.
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Both satellites pursue nearly circular , equatorial orbits about Mars.
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Subsequent timing observations have shown the pulsar to be in a 5.74-day circular orbit with a low-mass companion.
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A spacecraft passing through its perigee point is moving faster than an equivalent craft on a circular orbit of the same radius.
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Consequently the force of gravity at perigee is not enough to hold it in a circular orbit .
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This changes them from a circular orbit to an elliptical one.
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Another burn at this point can accelerate the craft, placing it on the higher circular orbit .
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An arrangement of more than four similar events into a circular orbit emphasises the centre, which may be occupied or not.
eccentric
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In summary the binary consists of two compact stars of not dissimilar mass moving in tight eccentric orbits .
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These asteroids may then be disturbed by gravitational perturbations by Jupiter into eccentric orbits , and then evolve into Earth-crossing orbits.
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The greater the distance between the foci the more eccentric the orbit and the greater the difference between apogee and perigee.
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The spacecraft enters into a more eccentric orbit , however the height and position of perigee remains the same.
elliptical
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Radial burns can also be used to circularize an elliptical orbit .
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In this cumbersome manner the elliptical orbits of the planets could all be defined within the context of the perfect circle.
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Kepler published his discovery of the elliptical orbits of planets in 1609.
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For example, consider a spacecraft flying in an elliptical orbit and burning its engines at the moment it reaches perigee.
geostationary
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This is known as a geostationary orbit and it is the orbit of choice for communications satellites.
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These satellites are in geostationary orbit and the images that they provide are used primarily in weather forecasting applications.
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As I mentioned earlier, a geostationary orbit is very handy for communications satellites.
high
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Figure 4.15 A Hohmann transfer between a low orbit and a higher orbit.
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Sometimes manmade objects in high orbits about Earth are also seen and identified from their distinctive motion.
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Another burn at this point can accelerate the craft, placing it on the higher circular orbit .
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The shuttle also will nudge the observatory into a slightly higher orbit to extend its lifetime.
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After all, the high orbit will require a lower speed for stability than the low orbit!
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One month later a second satellite was launched into a somewhat higher orbit , of between 234 and 244 miles.
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A suitable satellite in high orbit should do it nicely.
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For Deimos, in its higher orbit , only 560 meters per second suffices to escape from the Mars system.
low
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The unit includes the proposed Iridium global communications system that will use 66 low earth orbit satellites.
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But Ranger 1 got stuck in low orbit around Earth, as did Ranger 2 three months later.
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Figure 4.15 A Hohmann transfer between a low orbit and a higher orbit.
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Satellites in low-earth orbit glimpse only fragments of the planet.
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The station was orbiting at 280 kilometres altitude, its lowest orbit since the year of its launch in 1986.
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First, the crew, lunar-base modules, and equipment must be launched into a low orbit about Earth.
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After all, the high orbit will require a lower speed for stability than the low orbit!
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The cost of launching that ounce of gold into low-Earth orbit by shuttle would be about $ 830.
periodic
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For r slightly greater than 21. 0, a periodic orbit was not detected in the numerical results.
planetary
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Just because the law makes definite claims about planetary orbits , it has informative content and is falsifiable.
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An Apollo may make as many as ten crossings of planetary orbits on each trip around the Sun.
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These shapes turned out, quite remarkably, to be just what were needed for the descriptions of planetary orbits !
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He eventually discovered, however, that the planetary orbits are, in fact, elliptical.
stable
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Figure 4.6 How the linear speed needed for a stable orbit decreases with distance from the centre of the Earth.
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The bombardment occurs because of the stable orbits of the planets.
■ NOUN
earth
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We do it now on a small scale to bring the rocks into Earth orbit from the asteroid belt.
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Satellites in low-#earth orbit glimpse only fragments of the planet.
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The unit includes the proposed Iridium global communications system that will use 66 low earth orbit satellites.
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Another day and a half of zero gravity after takeoff and your ship brakes to enter Earth orbit .
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There is a long history of stations in Earth orbit that have met with varying degrees of success.
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After one to two years in Earth orbit , it will sail off into space.
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However the shuttle is purpose-built to lift payloads into Earth orbit in a reusable manner.
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The third stage's initial burn to place Apollo in Earth orbit lasted for 165 seconds.
■ VERB
cross
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In 1873, however, one was found on a trajectory that brought it in to cross the orbit of Mars.
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Therefore, Eros in its present orbit can cross the orbit of Mars and pass distressingly close to Earth.
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This was not a new idea, because comets had been known to have planet-#crossing orbits for some time.
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All of the Amor asteroids cross the orbit of Mars and could collide with it.
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Almost 1,000 small asteroids crossing our orbit are now known, 300 of them found last year alone.
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It has also found two Centaur family asteroids in orbits that cross the orbits of several of the Jovian planets.
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These bodies pass through the heavily trafficked inner solar system; many cross the orbits of three or four different planets.
enter
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Not easy though, he wrote, to submit oneself to it, to enter its orbit .
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They then enter independent orbits around the Sun, eventually to become meteorites.
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Another day and a half of zero gravity after takeoff and your ship brakes to enter Earth orbit .
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Both entered orbit but quickly malfunctioned.
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Discovery would enter a parking orbit around Saturn, be-coming a new moon of the giant planet.
follow
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Hence, as we follow the orbit around, we oscillate between one point and the other.
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The comet Tempel-Tuttle follows an orbit that is strikingly similar to that of the Leonids.
launch
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First, the crew, lunar-base modules, and equipment must be launched into a low orbit about Earth.
move
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In summary the binary consists of two compact stars of not dissimilar mass moving in tight eccentric orbits .
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I fantasized that by moving out of the orbit of Toots Tutivena and her Entourage, I would no longer be persecuted.
place
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On 4 October 1957 the Soviets placed Sputnik in orbit .
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Further, no instruments capable of detecting ice deposits were placed in polar orbit about the Moon during the Apollo era.
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The third stage's initial burn to place Apollo in Earth orbit lasted for 165 seconds.
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In February of 1961 two more spacecraft of this type were placed in closely similar orbits .
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The third stage was lit again to place Apollo on to an orbit that would carry it out to the Moon.
put
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Supplies could be put in orbit and brought down as needed by a braking system.
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Nor did one put shrapnel into orbit around the base.
EXAMPLES FROM OTHER ENTRIES
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Diplomats want to draw the two republics into the West European orbit .
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the Moon's orbit around the Earth
EXAMPLES FROM CORPUS
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A spacecraft passing through its perigee point is moving faster than an equivalent craft on a circular orbit of the same radius.
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By the time that the third stages engine had shut down the Apollo astronauts were in orbit .
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From the observed orbit of the visible star, one can determine the lowest possible mass of the unseen object.
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Mariner 9, with its vastly superior vantage point in orbit around Mars, saw it all.
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Once in orbit , you are precisely half way to having enough energy to escape from Earth.
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That proposal should send federal unions into orbit .
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The orbit of the Leonid shower has been determined from both photographic and radar observations.
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This final property is useful because it simplifies the calculation of general relativistic orbits.