May 6, 2492: Belgian astronomer Jean Meeus asserts that the orbits of all eight planets and Pluto will be within the same 90° arc of the Solar System.
In 1918, the Japanese astronomer Kiyotsugu Hirayama noticed that the orbits of some of the asteroids had similar parameters, forming families or groups.
Danel Orobengoa, also a Ph.D. student, joined the developer team in 2005 and worked mainly on symmetry modes, k-vector classification tables and non-characteristic orbits (in collaboration with Massimo Nespolo of the Nancy-Université, France), writing his Ph.D. thesis on the applications of the server for ferroic materials.
In the Trigun series, the planet orbits a binary star system.
CoRoT-7d is an unconfirmed exoplanet that orbits around CoRoT-7, an orange-yellow star younger and smaller than the Sun.
After many astronomers objected to this proposal, an alternative was drawn up by Uruguayan astronomer Julio Ángel Fernández, in which he created a median classification for objects large enough to be round but that had not cleared their orbits of planetesimals.
In 1989, Jacques Laskar's work showed that the Earth's orbit (as well as the orbits of all the inner planets) is chaotic and that an error as small as 15 metres in measuring the initial position of the Earth today would make it impossible to predict where the Earth would be in its orbit in just over 100 million years' time.
Tidal power is also renewable, in the sense that it will continue for as long as the Moon orbits the Earth.
Perry and his students (who formed the Kettering Group along with some other volunteers worldwide) continued their satellite tracking work for a number of years, using only inexpensive shortwave radio equipment and painstakingly using the Doppler effect to deduce the satellites' orbits.
Objects with chaotic rotations (such as exhibited by Hyperion) are also problematic, as their synchronous orbits change unpredictably.
With the advent of more efficient propulsion technology, space travel reaches a new level of attainability, the Uplands phenomenon being a product of direct access, for those wealthy enough, to the lower orbits.
From observations of the motions of over 20 000 local stars (within 300 parsecs), and using numerical simulation, Charles Francis and Erik Anderson have shown that, contrary to conventional wisdom, stars tend to move along a spiral arm during the inward part of their orbits, leaving the arm shortly after pericentre crossing the other arm on the outward part of the orbit and rejoining the original arm shortly before apocentre.
DT Virginis, a binary star about which orbits a planet with the farthest orbit around such a system.
This brown dwarf has mass of at least 18.15 times that of Jupiter and orbits in a long-period, eccentric orbit.
This evolution of the giant planets orbits, similar to processes described by exoplanet researchers, is referred to as the jumping-Jupiter scenario.
On his 70th birthday in 1987, he was honoured by the International Astrophysical Union when it assigned the name Climenhaga to an eight-kilometre asteroid (Minor Planet 3034 Climenhaga), which orbits the sun between the orbits of Mars and Jupiter.
Ph.D. degree was obtained in Pulkovo Observatory in 1963 by defending the thesis on Evolution of comet orbits.
The propulsion unit was used to retrieve two communication satellites, Westar VI and Palapa B2, that did not reach their proper orbits because of faulty propulsion modules.
His PhD supervisor was Bill Parry and his thesis title The Ruelle Operator, Zeta Functions and the Asymptotic Distribution of Closed Orbits.
As there are exactly five Platonic solids, Kepler's hypothesis could only accommodate six planetary orbits and was disproved by the subsequent discovery of Uranus.
In a silver-colored spacesuit, astronaut Gordon Cooper steps away from his Mercury spacecraft and into the bright sunlight on the deck of the recovery ship after 22 orbits of Earth.
Near-Earth object orbits, Solar orbits that bring things in those orbits near the orbit of the Earth
Several orbits have been calculated, including W.C. Jacob (1850), Bernhard Dawson (1919), W.J. Luyten & E.G. Ebbinghausen (1934), and J.G. Gore (1956) The most recent solution being produced by the Dutch astronomer Gale Bruno van Albada (1957), while he was acting as the Director of the Bosscha Observatory in Java, Indonesia.
Paul Wiegert is a Canadian astronomer and professor at the University of Western Ontario, specialising in study of unusual orbits of both observed objects and theorised classes of objects.
Pioneer 5 (also known as Pioneer P-2, and Thor Able 4) was a spin-stabilized space probe in the NASA Pioneer program used to investigate interplanetary space between the orbits of Earth and Venus.
It is generally believed that about 3.8 billion years ago, after a period known as the Late Heavy Bombardment, most of the planetesimals within the Solar System had either been ejected from the Solar System entirely, into distant eccentric orbits such as the Oort cloud, or had collided with larger objects due to the regular gravitational nudges from the giant planets (particularly Jupiter and Neptune).
The oldest forms of the planned unit development in America appeared shortly after World War II in the Levittowns and Park Forest developments as whole communities within the limits and orbits of large metropolitan centers.
In 1960, Aeronutronic, a division, of the Ford Motor Company, had a contract with Space Track to develop improved methods of predicting the orbits of decaying satellites, a computer program called Spiral Decay, and for other software for new computers in the new building.
This data along with that from other systems was used to adjust the orbits of various satellites and manned vessels (for instance the Space Shuttle and the International Space Station) to reduce the risk of on-orbit collisions.
1081 Reseda, a minor planet that orbits the Sun; named for the reseda plant genus
The US minor league baseball Albuquerque Isotopes' logo is a Rutherford atom, with the electron orbits forming an A.
Eccentric Jupiters may also disrupt the orbits of planets in habitable zones.
James Oberg, Star-Crossed Orbits: Inside the U.S.-Russian Space Alliance (New York: McGraw Hill, 2001)
He made a fundamental contribution to the n-body problem in celestial mechanics by proving that using a third degree approximation for the disturbing forces implies instability of the major axes of the orbits, and by introducing the concept of secular perturbations in relation to this.
Mr. Lett also has participated in committees and conferences of the United Nations, the International Telecommunication Union, and the International Maritime Organization, where topics included improved access to information and communications technologies for the world’s poor, greater efficiency in the international management of radio spectrum and satellite orbits, and the use of technology to advance maritime safety and security.
It is host to at least eight G-class stars and dozens of Earth-like planets, all stolen from their respective solar systems in the same manner as the Earth and carefully held in their orbits with artificial gravity.
This is the rarest of all single transits involving the eight planets, owing to the long synodic period of 172 years (of Uranus from Neptune), the very small apparent diameter of the Sun (1.07 arc-minutes, close to the limit of human visual resolution) as seen from Neptune, and the mutual inclination of the two orbits, 1.5 degrees, which is less than that of most planetary pairs.
By contrast, Cape Canaveral has a North-South coastline permitting over-ocean launches into standard orbits.
On 18 June 1983, during the 20th anniversary of Vostok 6's orbits, Sally Ride aboard OV-099 Space Shuttle Challenger for mission STS-7, became the third woman in space, and first non-Soviet woman, and first American woman, on a 5-man mission.