Pluto - Not a Planet Anymore
... First, Pluto is less than half the size of any other planet. It is very different from the other gas giants, the nearest planets to it. The first four planets (Mercury, Venus, Earth, and Mars) are rocky planets with solid surfaces. The next four planets are gas giants. Jupiter, Saturn, Uranus, and N ...
... First, Pluto is less than half the size of any other planet. It is very different from the other gas giants, the nearest planets to it. The first four planets (Mercury, Venus, Earth, and Mars) are rocky planets with solid surfaces. The next four planets are gas giants. Jupiter, Saturn, Uranus, and N ...
Chapter 8 Moons, Rings, and Plutoids
... A. Small particles orbiting the planet. B. Solid sheets of icy materials. C. Made of dark, uncoated rocky particles. D. Made of light-colored, metallic particles. E. Are unstable over short periods of ...
... A. Small particles orbiting the planet. B. Solid sheets of icy materials. C. Made of dark, uncoated rocky particles. D. Made of light-colored, metallic particles. E. Are unstable over short periods of ...
Temperature and Formation of our Solar System
... and also include the Trojan asteroids. • Planetesimals further out were “kicked” into outer orbits and form the Oort cloud. • Most planetesimals formed beyond Neptune are still there and make up the Kuiper belt. • The condensation theory could not account for the water and other volatile gases found ...
... and also include the Trojan asteroids. • Planetesimals further out were “kicked” into outer orbits and form the Oort cloud. • Most planetesimals formed beyond Neptune are still there and make up the Kuiper belt. • The condensation theory could not account for the water and other volatile gases found ...
Lecture-23-2009-ASTR111-Weigel
... 2. The interaction between Saturn's strong magnetic field and the magnetic fields generated by the shepherd satellites helps to hold the satellites together. 3. The Roche Limit only applies to objects held together by mutual gravitational attraction, not to chunks of rock like the shepherd satellite ...
... 2. The interaction between Saturn's strong magnetic field and the magnetic fields generated by the shepherd satellites helps to hold the satellites together. 3. The Roche Limit only applies to objects held together by mutual gravitational attraction, not to chunks of rock like the shepherd satellite ...
20091127131747!Lecture-23-2009-ASTR111-Weigel
... 2. The interaction between Saturn's strong magnetic field and the magnetic fields generated by the shepherd satellites helps to hold the satellites together. 3. The Roche Limit only applies to objects held together by mutual gravitational attraction, not to chunks of rock like the shepherd satellite ...
... 2. The interaction between Saturn's strong magnetic field and the magnetic fields generated by the shepherd satellites helps to hold the satellites together. 3. The Roche Limit only applies to objects held together by mutual gravitational attraction, not to chunks of rock like the shepherd satellite ...
Valentin P portofoliu-Erasmusplus
... ■ I like to travel everywhere in the world. I want to learn and know more things about astronomy and this project is a way to do what I want. Sometimes I`m wondering how this boundless universe works but it`s hard to understand the secrets of the Universe. The human brain can understand all of thes ...
... ■ I like to travel everywhere in the world. I want to learn and know more things about astronomy and this project is a way to do what I want. Sometimes I`m wondering how this boundless universe works but it`s hard to understand the secrets of the Universe. The human brain can understand all of thes ...
10 Comets, Dwarf Planets, Asteroids and Meteoroids
... In 1950, Fred Whipple proposed that comets are loosely packed bodies of homogeneously mixed ices and dust (a dirty snowball). The comet develops its tails when the Sun begins to sublimate the ices into gas and simultaneously releases the dust (~5 AU). He predicted the solar wind to drive off the ion ...
... In 1950, Fred Whipple proposed that comets are loosely packed bodies of homogeneously mixed ices and dust (a dirty snowball). The comet develops its tails when the Sun begins to sublimate the ices into gas and simultaneously releases the dust (~5 AU). He predicted the solar wind to drive off the ion ...
Today in Astronomy 111: the Kuiper Belt and the Oort Cloud
... Centaurs (×, 10%) lie between the orbits of Saturn and Neptune. They have probably been perturbed out of the other three groups. Many have orbits that cross those of the giant planets, so none will be in its present situation very long, probably not more than 10 Myr each. Chiron and Pholus are bot ...
... Centaurs (×, 10%) lie between the orbits of Saturn and Neptune. They have probably been perturbed out of the other three groups. Many have orbits that cross those of the giant planets, so none will be in its present situation very long, probably not more than 10 Myr each. Chiron and Pholus are bot ...
Article #2: Pluto On Trial
... Since the discovery of minor planet Ceres in 1801 astronomers have found thousands of minor planets orbiting the Sun, chiefly between the orbits of Mars and Jupiter but increasingly in other parts of the solar system. ...
... Since the discovery of minor planet Ceres in 1801 astronomers have found thousands of minor planets orbiting the Sun, chiefly between the orbits of Mars and Jupiter but increasingly in other parts of the solar system. ...
Assignment #1
... Assignment #1 Answer these questions using complete sentences. Be as brief but still complete and accurate as possible. A. What is basalt, and where is it found? Why? B. What ices dominate the solar system? C. Where do asteroids fit into the Solar System? D. Are asteroids found in particular orbits? ...
... Assignment #1 Answer these questions using complete sentences. Be as brief but still complete and accurate as possible. A. What is basalt, and where is it found? Why? B. What ices dominate the solar system? C. Where do asteroids fit into the Solar System? D. Are asteroids found in particular orbits? ...
What is a Planet?
... populations – the planets, satellites, asteroid belt, Kuiper Belt, Oort Cloud, etc. -that reflect different pathways in the evolution of the solar nebula. The conventional list of “nine planets” -- four terrestrial planets, four giant planets, and Pluto – has lost any scientific rationale, and is no ...
... populations – the planets, satellites, asteroid belt, Kuiper Belt, Oort Cloud, etc. -that reflect different pathways in the evolution of the solar nebula. The conventional list of “nine planets” -- four terrestrial planets, four giant planets, and Pluto – has lost any scientific rationale, and is no ...
Asteroids and Comets
... asteroids; some are comets. What's the difference? Asteroids are made up of rock and iron. They are similar to the rocky planets closest to the sun. Some asteroids are so large that scientists call them minor planets or planetoids. Like planets, some asteroids have moons. There is an area in space c ...
... asteroids; some are comets. What's the difference? Asteroids are made up of rock and iron. They are similar to the rocky planets closest to the sun. Some asteroids are so large that scientists call them minor planets or planetoids. Like planets, some asteroids have moons. There is an area in space c ...
Asteroids and Comets By Patti Hutchison 1 Caption: drawing of a
... clues about how Earth evolved. For example, some believe that the impact of an asteroid caused a chain of events that led to the extinction of the dinosaurs here on Earth. Impacts from comets may have brought water to our planet. Scientists believe that these space rocks can tell us a lot about the ...
... clues about how Earth evolved. For example, some believe that the impact of an asteroid caused a chain of events that led to the extinction of the dinosaurs here on Earth. Impacts from comets may have brought water to our planet. Scientists believe that these space rocks can tell us a lot about the ...
The Solar System
... – large enough that its own gravity pulls it into a round shape – Must be dominant enough to clear the area around it ...
... – large enough that its own gravity pulls it into a round shape – Must be dominant enough to clear the area around it ...
The Dynamical Structure of the Kuiper Belt and Its Primordial Origin
... belt, which we define here as the collection of nonresonant objects with 42 < a < 48 AU and q > 37 AU. The median eccentricity of the classical belt is ~0.07. It should be noted, however, that the upper eccentricity boundary of this population is set by the long-term orbital stability of the Kuiper ...
... belt, which we define here as the collection of nonresonant objects with 42 < a < 48 AU and q > 37 AU. The median eccentricity of the classical belt is ~0.07. It should be noted, however, that the upper eccentricity boundary of this population is set by the long-term orbital stability of the Kuiper ...
Chapter 14 Uranus, Neptune, Pluto and the Kuiper Belt
... • Dwarf Planet: An object orbiting the Sun (but is not a moon) with enough mass to gravitationally pull itself into a spherical shoape, yet not enough gravity to clear out planetesimals from its sur ...
... • Dwarf Planet: An object orbiting the Sun (but is not a moon) with enough mass to gravitationally pull itself into a spherical shoape, yet not enough gravity to clear out planetesimals from its sur ...
the probabilities of collisions
... A few JCOs got orbits located inside Jupiter’s orbit and moved in such orbits for millions or even hundreds of millions of years. The probability of a collision of such object with a terrestrial planet can be greater than the total probability of thousands of other JCOs. For one object (from 10P run ...
... A few JCOs got orbits located inside Jupiter’s orbit and moved in such orbits for millions or even hundreds of millions of years. The probability of a collision of such object with a terrestrial planet can be greater than the total probability of thousands of other JCOs. For one object (from 10P run ...
17.4 NOTES What are the other moons in the solar system
... 17.4 NOTES What are the other moons in the solar system? Objective: Compare the moons of the different planets in the solar system ...
... 17.4 NOTES What are the other moons in the solar system? Objective: Compare the moons of the different planets in the solar system ...
What are Asteroids, Meteors and Comets? How are they similar
... Short-Period comets need less than 200 years to complete one orbit Long-Period comets takes 200 years or more to complete one orbit ...
... Short-Period comets need less than 200 years to complete one orbit Long-Period comets takes 200 years or more to complete one orbit ...
Today in Astronomy 111: asteroids, perturbations and orbital
... But some locations in some of the mean-motion resonances offer protection against being scattered away by a planet. Suppose, for instance, that an encounter resulted in an asteroid in an orbit just like Jupiter’s, but placed opposite the Sun from Jupiter. Then it stays away from Jupiter, and out o ...
... But some locations in some of the mean-motion resonances offer protection against being scattered away by a planet. Suppose, for instance, that an encounter resulted in an asteroid in an orbit just like Jupiter’s, but placed opposite the Sun from Jupiter. Then it stays away from Jupiter, and out o ...
PHESCh23[1]
... The most prominent feature of Saturn is its system of rings. Features of Saturn • Saturn’s atmosphere is very active, with winds roaring at up to 1500 kilometers per hour. • Large cyclonic “storms” similar to Jupiter’s Great Red Spot, although smaller, occur in Saturn’s ...
... The most prominent feature of Saturn is its system of rings. Features of Saturn • Saturn’s atmosphere is very active, with winds roaring at up to 1500 kilometers per hour. • Large cyclonic “storms” similar to Jupiter’s Great Red Spot, although smaller, occur in Saturn’s ...
Asteroids and Comets
... Origin and Evolution of Comets Comets originate from very great distances The aphelia of new comets are typically ~50,000 AU This clustering of aphelia was first noted by Dutch astronomer Jan Oort in 1950 He then proposed an idea for the origin of those comets, which is still accepted by most astro ...
... Origin and Evolution of Comets Comets originate from very great distances The aphelia of new comets are typically ~50,000 AU This clustering of aphelia was first noted by Dutch astronomer Jan Oort in 1950 He then proposed an idea for the origin of those comets, which is still accepted by most astro ...
The Size and Distance Scale Of The Solar System
... Pluto, have recently found several additional objects comparable to Pluto in size. • Most recently, an object apparently larger than Pluto has been found, which would (if verified) make it the 10th planet of our solar system. • The detection of this (as yet un-named) object, called (temporarily) UB3 ...
... Pluto, have recently found several additional objects comparable to Pluto in size. • Most recently, an object apparently larger than Pluto has been found, which would (if verified) make it the 10th planet of our solar system. • The detection of this (as yet un-named) object, called (temporarily) UB3 ...
Ch. 27 The Planets in our Solar System
... – It occasionally becomes the 9th object away from the sun because every 248 years Pluto’s odd orbit brings Pluto closer to the sun than Neptune (switches about every 20 years – will be the 9th object from the sun again about 2019) – Discovered in 1876 when scientist predicted its existence ...
... – It occasionally becomes the 9th object away from the sun because every 248 years Pluto’s odd orbit brings Pluto closer to the sun than Neptune (switches about every 20 years – will be the 9th object from the sun again about 2019) – Discovered in 1876 when scientist predicted its existence ...
The Planet Neptune
... During the Greek mythology times, astronomers named the 4 inner planets after the most important gods. Astronomers eventually found the outer planets and keep the tradition of naming them after the gods. Once they got to Neptune, they decided to name it after Neptune, the god of the sea. They named ...
... During the Greek mythology times, astronomers named the 4 inner planets after the most important gods. Astronomers eventually found the outer planets and keep the tradition of naming them after the gods. Once they got to Neptune, they decided to name it after Neptune, the god of the sea. They named ...
Scattered disc
The scattered disc (or scattered disk) is a distant region of the Solar System that is sparsely populated by icy minor planets, a subset of the broader family of trans-Neptunian objects. The scattered-disc objects (SDOs) have orbital eccentricities ranging as high as 0.8, inclinations as high as 40°, and perihelia greater than 30 astronomical units (4.5×109 km; 2.8×109 mi). These extreme orbits are thought to be the result of gravitational ""scattering"" by the gas giants, and the objects continue to be subject to perturbation by the planet Neptune.Although the closest scattered-disc objects approach the Sun at about 30–35 AU, their orbits can extend well beyond 100 AU. This makes scattered objects among the most distant and coldest objects in the Solar System. The innermost portion of the scattered disc overlaps with a torus-shaped region of orbiting objects traditionally called the Kuiper belt, but its outer limits reach much farther away from the Sun and farther above and below the ecliptic than the Kuiper belt proper.Because of its unstable nature, astronomers now consider the scattered disc to be the place of origin for most periodic comets in the Solar System, with the centaurs, a population of icy bodies between Jupiter and Neptune, being the intermediate stage in an object's migration from the disc to the inner Solar System. Eventually, perturbations from the giant planets send such objects towards the Sun, transforming them into periodic comets. Many Oort cloud objects are also thought to have originated in the scattered disc. Detached objects are not sharply distinct from scattered disc objects, and some such as Sedna have sometimes been considered to be included in this group.