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The planet received its name because of its remarkable similarity to Earth ; its day is nearly 24 hours long and its surface gravity is a comfortable 1. 08 g. Oceans, mean global temperature, seasons, and moon ( Home's moon is called Metaluna, but is often referred to as " the Moon " by Homers ) are also similar.
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planet and received
The received radiation is compared with the radiation from a hypothetical black body which subtends the same solid angle as the visible disk of the planet.
A rough table comparing the amount of solar radiation received by each planet in the Solar System follows ( from data in ):
In December 1859, Le Verrier received a letter from a French physician and amateur astronomer called Edmond Modeste Lescarbault, who claimed to have seen a transit of the hypothetical planet earlier in the year.
To gain a better understanding of the history of the planet the studio received guidance from Roy Chapman Andrews, the director of the American Museum of Natural History, English biologist Julian Huxley, paleontologist Barnum Brown, and astronomer Edwin Hubble.
" Other awards she has received include the Global 500 Award of the United Nations Environment Programme ( UNEP ) in 1993, and the Earth Day International Award of the United Nations ( UN ) for her dedicated commitment to the preservation of the planet as demonstrated by her actions, leadership and by setting an example for the rest of the world.
Such changes in the geometry of an orbit lead to the changes in the insolation ( incoming solar radiation )-quantity of heat received by any spot at the surface of a planet.
The Population Council orders new ovarian cultures from another planet, Jackson's Whole, but upon delivery discover they have received an unusable mixture of dead and animal tissues.
This work contains an elaborate account of the phenomena presented by the planet ; but although favorably received by astronomers, it had no great sale.
When the Power Chamber was destroyed by Divatox and the defeated Turbo Rangers received word that the planet Eltar, home to their original mentor Zordon, had fallen to evil forces, Ashley and the other three new Turbo Rangers-T. J., Carlos, and Cassie-left Earth for outer space in a NASADA space shuttle, powerless but ready to fight to save Zordon.
The planet received the designation HD 209458 b.
When the Power Chamber was destroyed by Divatox and the defeated Turbo Rangers received word that the planet Eltar, home to their original mentor Zordon, had fallen to evil forces, Carlos and the other three new Turbo Rangers-T. J., Ashley, and Cassie-left Earth for outer space in a NASADA space shuttle, powerless but ready to fight to save Zordon.
The effective temperature of a planet can be calculated by equating the power received by the planet with the power emitted by a blackbody of temperature < var > T </ var >.
He graduated from Indiana University in 1933 and received a fellowship to work at Lowell Observatory in Flagstaff, Arizona, where he stayed until 1935, working as an observing assistant to Clyde Tombaugh, discoverer of the dwarf planet Pluto.
The home planet supported its laboratory with apparatus and resources and received new technological know-how in exchange.
The Doctor's companionship with Sarah Jane came to an end when he received a telepathic summons to Gallifrey, as humans were not then allowed on the planet.
This planet, which received the designation HD 188753 Ab, was announced by a Polish astronomer working in the United States, Dr. Maciej Konacki.
Kreider also received coverage in The New York Times in 2006 for his defense of Pluto as a planet before and after its demotion to planetoid.
planet and its
The Brahmaputra has its headwaters in the tableland of the world, the towering white headwalls of the Himalayas that are unknown to man as any other space on the planet.
and, now and in the future unlike in the past, any attempt to repel injury and to preserve any particular civilized attainment of mankind or its provisional justice runs some risk of nuclear warfare and the danger that an effect of it will, by human action, render this planet less habitable by the human race.
* 1989 – Voyager 2 spacecraft makes its closest approach to Neptune, the second to last planet in the Solar System at the time.
In Asimov's Empire and Foundation series, the capital planet Trantor of the galactic empire is a completely built-up planet, covered in its entirety with tall buildings and subterranean structures.
Aberration should also be distinguished from light-time correction, which is due to the motion of the observed object, like a planet, through space during the time taken by its light to reach an observer on Earth.
For the case of an object that is small compared with the radial distance to its axis of rotation, such as a tin can swinging from a long string or a planet orbiting in a circle around the Sun, the angular momentum can be expressed as its linear momentum,, crossed by its position from the origin, r. Thus, the angular momentum L of a particle with respect to some point of origin is
In orbits, the angular momentum is distributed between the spin of the planet itself and the angular momentum of its orbit:
If a planet is found to rotate slower than expected, then astronomers suspect that the planet is accompanied by a satellite, because the total angular momentum is shared between the planet and its satellite in order to be conserved.
What makes an individual substance – a man, a tree, a planet – real is a distinct act, a " to be ", which actuates its unity.
* The planet Uranus is colored cyan because of the abundance of methane in its atmosphere.
The Blue Planetary was discovered by John Herschel and named for its color's similarity to Uranus, though the nebula is three times larger than the planet.
Brian Marsden of the Central Bureau for Astronomical Telegrams noted that the comet lay only about 4 degrees from Jupiter as seen from Earth, and that while this could of course be a line of sight effect, its apparent motion in the sky suggested that it was physically close to the giant planet.
A search of historical observations revealed that the spots were probably the most prominent transient features ever seen on the planet, and that while the Great Red Spot is notable for its striking color, no spots of the size and darkness of those caused by the SL9 impacts have ever been recorded before.
The entire species dies out every 50, 000 years except for one who tends for all the eggs, which take the form of silicon nodules scattered throughout the caverns and tunnels of its home planet, Janus VI.
* in Doctor Who's first series after its revival, episodes 4-5 and 11 featured the alien Slitheen family of the planet Raxicoricofallapatorius, which were said to be Calcium-based life forms, causing them to be blown up in contact with vinegar.
In the Halo franchise, the weak, low-ranking Grunts of the Covenant originate on a frozen exoplanet named Balaho, where methane is a primary constituent of the atmosphere, prevents the planet becoming even more frigid than it already is due to its distance from its parent star, and thus, Grunts have evolved to utilize the gas for respiration.
In the special case of a planet in circular orbit around its star, for example, where is zero, the centripetal acceleration alone is the entire acceleration of the planet, curving its path toward the sun under the force of gravity, the negative F ( r ).
planet and name
* Abydos ( Stargate ), name of a fictional planet in the Stargate science fiction universe
The name " Pluto " was reportedly suggested by Venetia Burney, then an 11-year-old English school girl, who died in April 2009, having lived to see the reclassification of Pluto as a dwarf planet.
Under the name Abulurd Rabban, he reigns as governor of the secondary Harkonnen planet Lankiveil.
The Norse name for the planet Venus was Friggjarstjarna ' Frigg's star '.
During the first decade of the television series, the name of the Doctor's home planet was not revealed, although it was actually shown for the first time in The War Games ( 1969 ) during the Doctor's trial.
The planet was not referred to by name until the 2006 Christmas Special, was depicted in a flashback in " The Sound of Drums ", and played an important role in the plot of " The End of Time ".
Mercury is also the name of the innermost planet of the Solar System, which moves faster than any other
* Desolation Road ( 1988 ) by Ian McDonald is a magic-realist science fiction novel set on a planet that's never explicitly named ( though the name " Ares " makes frequent appearances in various contexts ) but is clearly meant to be a terraformed Mars.
The roots of the Vorkosigan Saga lie in an early short story by Bujold, " Dreamweaver's Dilemma ", which features a planet called Beta Colony and a character with the last name of Naismith.
The first form of elemental phosphorus to be produced ( white phosphorus, in 1669 ) emits a faint glow upon exposure to oxygen – hence its name given from Greek mythology, meaning " light-bearer " ( Latin Lucifer ), referring to the " Morning Star ", the planet Venus.
The X in the name represents an unknown and is pronounced as the letter, as opposed to the Roman numeral for 10 ( At the time, Planet X would have been the ninth planet ).
* Polyphemus is also the name of the planet which the moon Pandora orbits in James Cameron's Avatar.
In part of her Marvel Comics career, the character Jean Grey had undergone an enormous increase in her power, which under the new name Dark Phoenix made her increasingly dark in character until she consumed a whole star and caused the death of billions of beings on a planet orbiting that star.
In the Pocket Books novels by Diane Duane, the Romulan name for the planet is ch ' Rihan, hence the endonym for the people is Rihannsu.
In The Crystal Bucephalus by Craig Hinton, the name of their planet was given as Sontara.
He called the new planet the ' Georgian star ' ( Georgium sidus ) after King George III, which also brought him favour ; the name didn't stick.
However, In France, where reference to the British king was to be avoided if possible, the planet was known as ' Herschel ' until the name ' Uranus ' was universally adopted.
Mercury has influenced the name of many things in a variety of scientific fields, such as the planet Mercury, and the element mercury.
Le Verrier postulated that the excess precession could be explained by the presence of a small planet inside the orbit of Mercury, and he proposed the name " Vulcan " for this object.
In Roman mythology, Vulcan was the god of beneficial and hindering fire, including the fire of volcanoes, making it an apt name for a planet so close to the Sun.
The largest moon of the planet Neptune has been given the name Triton, as Neptune is the Roman equivalent of Poseidon.
In the Dungeons & Dragons roleplaying game, Oerth, pronounced as " Orth " ( long " o ") or " oyth ", is the name of the fictional planet on which one of the earliest campaign settings, the World of Greyhawk, is located.
The game also featured a unique " Impossible " setting, which lived up to its name, since the sun went nova after only a few turns, destroying the entire planet.
Leia would go to Alderaan and grow up a princess, which was how she got the name and title, Princess Leia, the adopted daughter of Senator Bail Organa, and Luke would be taken to the desert planet of Tatooine to be raised as a moisture farmer by his Uncle Owen and Aunt Beru.
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