It ended with the double hypothesis: either the attraction of the moon would draw it to herself, and the travelers thus attain their end; or that the projectile, held in one immutable orbit
, would gravitate around the lunar disc to all eternity.
Around soothsayers and astrologers hath hitherto revolved the orbit
of this illusion.
That object, called 2003 EL61, resides in the Kuiper belt, where it now orbits
the sun at a distance of 52 AU.
, or revolves around, a star--in this case, the sun.
and Russia have worked together with 13 other nations to design, build, and assemble the International Space Station (ISS), which now orbits
The computerized system is designed to automatically survey the skies for objects - asteroids and comets - which could pose a hazard to Earth if their orbits
The model calculations found that objects as large, or even larger, than Sedna could easily form in circular orbits
at distances of 75 to 500 AU, and that their formation time could have been fairly short -- just a few percent the age of the solar system," Stern continues.
Such fringe orbits
have yet to be explored by most planet-hunting techniques.
Although it sometimes comes close to Earth's orbit
, the 14-mile-diameter asteroid is not one of the approximately 150 known planetoids more than one-half mile in diameter whose orbits
actually cross that of Earth.
But there's one distinguishing feature: The motions of moons are discernible as each inches across the sky in synchrony with the planet it orbits
That in turn revealed that the third body is a Jupiter like planet that orbits
the neutron star-white dwarf duo at about the same distance that Uranus orbits
Alluding to comments previously published in the trade press, Gerding added: ``TRW has not patented orbits
in space any more than Thomas Edison patented the radio-frequency spectrum when he received a patent in 1885 for `wireless telegraphy,' the precursor to radio.
If the cluster were still intact as it came within 4 light-years of the core, within the gravitational grasp of the supermassive black hole, it would soon disintegrate, spilling its stars into orbits
around the black hole.
From their orbits
more than 22,000 miles above Earth, they relay voice, television and digital and analog data between user satellites and the satellites' control centers on Earth.
This week, they announced that they had found the first Jupiterlike planet orbiting a star at nearly the same distance that Jupiter orbits