Vega's upper-stage had to ignite several times to get all three satellites in their correct orbits.
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Normally they stay in high orbits and such an agreement can be reached quickly enough.
The second, Kepler-35b, orbits a set of twin stars about 5, 400 light years away.
The three-man crew is the first to take the quicker route, involving just four orbits.
By comparison, Mercury orbits our Sun at a distance between 29 million and 43 million miles.
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Near-Earth objects are comets or asteroids in orbits that allow them to enter Earth's neighborhood.
These slight pulls cause regular variations in the planets' orbits, affecting the timing of their transits.
But there are about 1000 so-called short-period comets, whose orbits take less than 200 years.
KELT-2Ab orbits the bigger star, which is bright enough to be seen from Earth with binoculars.
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Further catastrophe awaits the remaining, ordinary star if it orbits the neutron star too closely.
It has five times the mass of the Earth and orbits its star every 13 days.
Small planets' waves have small amplitudes, so you can pick the signal from the noise only after several orbits.
They were able to do this by looking at those asteroids' orbits in detail.
Not surprisingly, northern and southern California circle in different orbits, as do upstate and downstate New York.
This time, the orchestra was the emission spectrum of electrons jumping to different orbits from the hydrogen.
The first, called Kepler-34b, orbits its two small stars in a system about 4, 900 light-years from Earth.
Using this data, the researchers were able to plot a series of possible orbits for the object.
The planet orbits a star about half as big as our Sun, positioned some 9, 000 light-years away.
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Often, exoplanets just get tugged from their orginal, near-circular orbits into more eccentric ones, the simulations showed.
Such asteroids would rapidly have adopted orbits that cut across those of the inner planets, including Earth.
The existence of Neptune was deduced from minute deviations between the predicted and observed orbits of Uranus.
Kindly allow me the prejudice of summing up my own generation: We think the Earth orbits around us.
Spending time with Roelf, I realise that when it comes to patience, we are spinning in different orbits.
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It was the Apollo group of asteroids, which circle the sun in oblong orbits, that occasionally cross Earth's.
The planet orbits its host star, or brown dwarf, with an orbital radius similar to that of Venus.
It inflated to 14 feet long by 8 feet in diameter and still orbits 350 miles above Earth.
This scheme could be used to boost satellites from low orbits to higher ones without using any fuel.
It is 70% larger than the Earth and orbits Kepler 69 once every 242 days -- very like Venus.
The simulations also showed that rocky planets known as Hot Earths often form inside the orbits of Hot Jupiters.
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It is not circling the Earth but orbits a point in the Sun-Earth system called the second Lagrange point.
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