Pluto wikipedia

Pluto stylized in all caps is a Japanese manga series written and illustrated by Naoki Urasawa. Urasawa reinterprets the story as pluto wikipedia suspenseful murder mystery starring Gesicht, pluto wikipedia, a Europol robot detective trying to solve the case of a string of robot and human deaths.

Pluto minor-planet designation : Pluto is a dwarf planet in the Kuiper belt , a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most- massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume, by a small margin, but is less massive than Eris. Like other Kuiper belt objects, Pluto is made primarily of ice and rock and is much smaller than the inner planets. Pluto has only one sixth the mass of Earth's moon , and one third its volume.

Pluto wikipedia

The dwarf planet Pluto has five natural satellites. The innermost and largest moon, Charon, was discovered by James Christy on 22 June , nearly half a century after Pluto was discovered. This led to a substantial revision in estimates of Pluto's size, which had previously assumed that the observed mass and reflected light of the system were all attributable to Pluto alone. The discovery of Styx was announced on 7 July while looking for potential hazards for New Horizons. Charon is about half the diameter of Pluto and is massive enough nearly one eighth of the mass of Pluto that the system's barycenter lies between them, approximately km above Pluto's surface. The IAU General Assembly in August considered a proposal that Pluto and Charon be reclassified as a double planet, but the proposal was abandoned. Pluto's four small circumbinary moons orbit Pluto at two to four times the distance of Charon, ranging from Styx at 42, kilometres to Hydra at 64, kilometres from the barycenter of the system. They have nearly circular prograde orbits in the same orbital plane as Charon. All are much smaller than Charon. Nix and Hydra, the two larger, are roughly 42 and 55 kilometers on their longest axis respectively, [9] and Styx and Kerberos are 7 and 12 kilometers respectively. The orbits of the moons are confirmed to be circular and coplanar, with inclinations differing less than 0. The discovery of Nix and Hydra suggested that Pluto could have a ring system. Small-body impacts could eject debris off of the small moons which can form into a ring system. However, data from a deep-optical survey by the Advanced Camera for Surveys on the Hubble Space Telescope , by occultation studies, [17] and later by New Horizons , suggest that no ring system is present.

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Pluto has appeared in fiction as a setting since shortly after its discovery, albeit infrequently. It was initially comparatively popular as it was newly discovered and thought to be the outermost object of the Solar System and made more fictional appearances than either Uranus or Neptune , though still far fewer than other planets. Alien life , sometimes intelligent life and occasionally an entire ecosphere , is a common motif in fictional depictions of Pluto. Human settlement appears only sporadically, but it is often either the starting or finishing point for a tour of the Solar System. It has variously been depicted as an originally extrasolar planet , the remnants of a destroyed planet, or entirely artificial. Its moon Charon has also appeared in a handful of works.

The geography of Pluto is mainly focused the distribution of physical features across Pluto. On 14 July , the New Horizons spacecraft became the first spacecraft to fly by Pluto. Pluto may be defined as having retrograde rotation and an axial tilt of 60 degrees, or prograde rotation and a tilt of degrees. Following the latter convention the right-hand rule , the hemisphere currently in daylight is the northern one, with much of the southern hemisphere in darkness. However, older sources may define Pluto's rotation as retrograde and therefore the sunlit side as the southern hemisphere. East and West are also swapped between the two conventions.

Pluto wikipedia

Pluto is the largest known dwarf planet in the solar system and used to be considered the ninth and most distant planet from the sun. The strange world is located in the Kuiper Belt , a zone beyond the orbit of Neptune brimming with hundreds of thousands of rocky, icy bodies each larger than 62 miles kilometers across as well as 1 trillion or more comets. Pluto stopped being a planet in when it was reclassified as a dwarf planet, a demotion that attracted controversy and stirred debate in the scientific community and among the general public. Related: Why isn't Pluto a planet anymore? American astronomer Percival Lowell first suggested that Pluto existed in when he observed strange deviations in the orbits of Neptune and Uranus. Lowell thought there must be another whose gravity is tugging on these ice giants, causing discrepancies in their orbits. Lowell proceeded to predict the mystery planet's location in but died 15 years before its discovery. Pluto was eventually discovered in by Clyde Tombaugh at the Lowell Observatory , based on predictions by Lowell and other astronomers.

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October 27, Fitch, Seneca's Hercules Furens , p. Archived from the original on February 5, Archived from the original on October 19, Physics and chemistry of the solar system 2 ed. Teaching and Lab Materials. Quidlivun Cavus. This version 22 Oct was approved by Robin Getz. Vesta , the next-most-massive body in the asteroid belt after Ceres, was once in hydrostatic equilibrium and is roughly spherical, deviating mainly due to massive impacts that formed the Rheasilvia and Veneneia craters after it solidified. Bibcode : Sci Archived from the original on June 23, Orbital period synodic. Sykes; Alan Stern; James F.

Our solar system has five dwarf planets. Pluto and other dwarf planets are a lot like regular planets.

Main article: List of possible dwarf planets. Launched in , it captured its first distant images of Pluto in late September during a test of the Long Range Reconnaissance Imager. Moons of Pluto. Jupiter Saturn Uranus Neptune. Hydra is a concerned moon, doesn't know much, so she questions things a lot, and her only friends are Pluto and Nix. Observations of Pluto in occultation with Charon allowed scientists to establish Pluto's diameter more accurately, whereas the invention of adaptive optics allowed them to determine its shape more accurately. Astronomical Institute Prague. Madan passed the name to Professor Herbert Hall Turner. The plains on Pluto's surface are composed of more than 98 percent nitrogen ice , with traces of methane and carbon monoxide. Earth , by contrast, is 1. Others wanted to name it Zymal. The Telegraph. Chicago: University of Chicago Press.