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... • Pluto and similar objects are referred to as dwarf planets • The largest Kuiper Belt object is Eris, has a moon • In 2006, Pluto was demoted to dwarf planet status because its orbit sometimes crosses Neptune’s orbit ...
... • Pluto and similar objects are referred to as dwarf planets • The largest Kuiper Belt object is Eris, has a moon • In 2006, Pluto was demoted to dwarf planet status because its orbit sometimes crosses Neptune’s orbit ...
Asteroids and comets
... 3. Cite two reasons why astronomers consider it unlikely that the belt asteroids ever were part of a tenth planet, and explain why these objects never became part of any planetary body. 4. Sketch a diagram of a comet that shows its major parts (nucleus, coma, ion tail, dust tail) as it approaches th ...
... 3. Cite two reasons why astronomers consider it unlikely that the belt asteroids ever were part of a tenth planet, and explain why these objects never became part of any planetary body. 4. Sketch a diagram of a comet that shows its major parts (nucleus, coma, ion tail, dust tail) as it approaches th ...
Asteroids comets meteoroids
... • Lies beyond Neptune’s orbit and the Kuiper belt, surrounds our solar system. • Contains billions of nuclei of comets • All in elliptical orbits around the sun; very slow orbits; it may take some of them a few million years to complete one orbit! ...
... • Lies beyond Neptune’s orbit and the Kuiper belt, surrounds our solar system. • Contains billions of nuclei of comets • All in elliptical orbits around the sun; very slow orbits; it may take some of them a few million years to complete one orbit! ...
Comets and the history of our Solar System
... dust in the outskirts of our Solar System. Through small orbital perturbations (for instance, close encounters between several such objects within the Oort cloud) some of these object could be deviated and sent into the inner regions of the Solar System - thus forming comets. This is consistent with ...
... dust in the outskirts of our Solar System. Through small orbital perturbations (for instance, close encounters between several such objects within the Oort cloud) some of these object could be deviated and sent into the inner regions of the Solar System - thus forming comets. This is consistent with ...
Our own Earth`s interior structure, and surface features will be
... Pluto doesn’t really fit in with either the terrestrial or jovian planets. If it were discovered today (rather than in 1930), Pluto would most likely be classified as a Kuiper Belt Object. However, in 2000 the International Astronomical Union voted to keep Pluto as the ninth planet. Other sizeable b ...
... Pluto doesn’t really fit in with either the terrestrial or jovian planets. If it were discovered today (rather than in 1930), Pluto would most likely be classified as a Kuiper Belt Object. However, in 2000 the International Astronomical Union voted to keep Pluto as the ninth planet. Other sizeable b ...
Solar System - Physics Rocks!
... Outskirts of solar system—beyond Neptune Pluto is technically part of the Kuiper Belt (one of the closest objects from the Belt) Billions of Pluto-sized objects, and smaller, and some potentially bigger (not detected…yet.) 7.5 – 9.3 Billion miles from Sun ...
... Outskirts of solar system—beyond Neptune Pluto is technically part of the Kuiper Belt (one of the closest objects from the Belt) Billions of Pluto-sized objects, and smaller, and some potentially bigger (not detected…yet.) 7.5 – 9.3 Billion miles from Sun ...
Formation of the Solar System
... Composition of the planets (inner and outer) Motion of planets and sun Law of gravity Existence of solar wind Asteroids – a broken or unformed planet? What appear to be accretion disks have been observed around protostars (Hubble photos of the Horsehead nebula) We are always learning more. ...
... Composition of the planets (inner and outer) Motion of planets and sun Law of gravity Existence of solar wind Asteroids – a broken or unformed planet? What appear to be accretion disks have been observed around protostars (Hubble photos of the Horsehead nebula) We are always learning more. ...
Solar System - Spring Branch ISD
... The four large planets beyond the asteroid ___________ belt are Jupiter called gas giants. These planets are _______, Neptune These planets ________, Saturn _________, Uranus and ________. are gaseous in nature, composed of mostly hydrogen and helium ____________________. ...
... The four large planets beyond the asteroid ___________ belt are Jupiter called gas giants. These planets are _______, Neptune These planets ________, Saturn _________, Uranus and ________. are gaseous in nature, composed of mostly hydrogen and helium ____________________. ...
The Sun and the Origin of the Solar System
... Halley's Comet • In 1705, Edmund Halley computed the orbit of the great comet of 1682 using Newton's laws • Found that orbit of 1682 comet was the same as comets seen in 1531 & 1607. • Predicted return in 1758. • Seen again on Christmas day 1758, 12 years after Halley's death ...
... Halley's Comet • In 1705, Edmund Halley computed the orbit of the great comet of 1682 using Newton's laws • Found that orbit of 1682 comet was the same as comets seen in 1531 & 1607. • Predicted return in 1758. • Seen again on Christmas day 1758, 12 years after Halley's death ...
Ch. 20-2 Sun Study Gd. Revised
... 4. When a meteoroid enters Earth’s atmosphere, friction causes it to burn up and produce a streak of light called a(n) __________________________________________________ . 5. A chunk of ice and dust whose orbit is usually a long, narrow ellipse is a(n) __________________ . 6. If a meteoroid hits Ear ...
... 4. When a meteoroid enters Earth’s atmosphere, friction causes it to burn up and produce a streak of light called a(n) __________________________________________________ . 5. A chunk of ice and dust whose orbit is usually a long, narrow ellipse is a(n) __________________ . 6. If a meteoroid hits Ear ...
Light Years Away
... 2. The astronomical unit (AU) is a unit of length equal to the distance from A. The Earth to the Sun B. The Earth to the Moon C. The Sun to Pluto D. The Sun to the center of the Milky Way ...
... 2. The astronomical unit (AU) is a unit of length equal to the distance from A. The Earth to the Sun B. The Earth to the Moon C. The Sun to Pluto D. The Sun to the center of the Milky Way ...
Comets, Asteroids and Meteors
... • About the size of a Mountain • Made of Ice, rock and dust (Has nucleus, coma, tail) • Some orbit past Pluto • Birth Place: past Pluto – “Oort Cloud” • Grows a tail when it is near the Sun Tail always points away from the Sun. ...
... • About the size of a Mountain • Made of Ice, rock and dust (Has nucleus, coma, tail) • Some orbit past Pluto • Birth Place: past Pluto – “Oort Cloud” • Grows a tail when it is near the Sun Tail always points away from the Sun. ...
23 4 Minor Members of the Solar System
... A small glowing nucleus with a diameter of only a few kilometers can sometimes be detected within a coma. As comets approach the sun, some develop a tail that extends for millions of kilometers. The tail of the comet always points away from the sun, this is accounted for by the solar wind and radiat ...
... A small glowing nucleus with a diameter of only a few kilometers can sometimes be detected within a coma. As comets approach the sun, some develop a tail that extends for millions of kilometers. The tail of the comet always points away from the sun, this is accounted for by the solar wind and radiat ...
The Sun and the Origin of the Solar System
... Halley's Comet • In 1705, Edmund Halley computed the orbit of the great comet of 1682 using Newton's laws • Found that orbit of 1682 comet was the same as comets seen in 1531 & 1607. • Predicted return in 1758. • Seen again on Christmas day 1758, 12 years after Halley's death ...
... Halley's Comet • In 1705, Edmund Halley computed the orbit of the great comet of 1682 using Newton's laws • Found that orbit of 1682 comet was the same as comets seen in 1531 & 1607. • Predicted return in 1758. • Seen again on Christmas day 1758, 12 years after Halley's death ...
Goal: To understand what comets are and to explore the Oort cloud.
... • This can toss it into an orbit which goes from Neptune to the orbit of the terrestrial planets (like Earth). • Or, it could become a Centaur for awhile. ...
... • This can toss it into an orbit which goes from Neptune to the orbit of the terrestrial planets (like Earth). • Or, it could become a Centaur for awhile. ...
Smaller Bodies of the Solar System
... _______ supposedly left over from the formation of the solar system proposed as source for long-period comets and a replenisher of the Oort Cloud. beyond Neptune (extending from 30 AU out to around 100 AU). occasionally disturbed by gravitational interactions these objects are sent hurtling into ...
... _______ supposedly left over from the formation of the solar system proposed as source for long-period comets and a replenisher of the Oort Cloud. beyond Neptune (extending from 30 AU out to around 100 AU). occasionally disturbed by gravitational interactions these objects are sent hurtling into ...
Other Objects in Our Solar System
... planets, and asteroids which are relatively small. • Some meteoroids are small enough that they burn up as they enter Earth’s atmosphere. These are meteors. • Some are large enough that they land on Earth. They are meteorites. ...
... planets, and asteroids which are relatively small. • Some meteoroids are small enough that they burn up as they enter Earth’s atmosphere. These are meteors. • Some are large enough that they land on Earth. They are meteorites. ...
the solar system
... Planets are Mercury, Venus, Earth Mars, Jupiter, Saturn, Uranus and Neptune. ...
... Planets are Mercury, Venus, Earth Mars, Jupiter, Saturn, Uranus and Neptune. ...
23.3 The Outer Planets
... • A coma is the fuzzy, gaseous component of a comet’s head. • A small glowing nucleus with a diameter of only a few kilometers can sometimes be detected within a coma. As comets approach the sun, some, but not all, develop a tail that extends for millions off kilometers. ...
... • A coma is the fuzzy, gaseous component of a comet’s head. • A small glowing nucleus with a diameter of only a few kilometers can sometimes be detected within a coma. As comets approach the sun, some, but not all, develop a tail that extends for millions off kilometers. ...
Formation of the Solar System
... Imagine an immense low-density cloud in the outer arms of our galaxy. This huge cloud of gas (mostly hydrogen with a little helium) and dust was originally so thin that it was virtually invisible. Millions of years passed, the cloud contracted, cooled and began to spin. Gravitational forces in this ...
... Imagine an immense low-density cloud in the outer arms of our galaxy. This huge cloud of gas (mostly hydrogen with a little helium) and dust was originally so thin that it was virtually invisible. Millions of years passed, the cloud contracted, cooled and began to spin. Gravitational forces in this ...
Oort cloud
The Oort cloud (/ˈɔrt/ or /ˈʊərt/) or Öpik–Oort cloud, named after Dutch astronomer Jan Oort and Estonian astronomer Ernst Öpik, is a theoretical spherical cloud of predominantly icy planetesimals believed to surround the Sun at a distance of up to around 100,000 AU (2 ly). This places it at almost half of the distance to Proxima Centauri, the nearest star to the Sun, and in interstellar space. The Kuiper belt and the scattered disc, the other two reservoirs of trans-Neptunian objects, are less than one thousandth as far from the Sun as the Oort cloud. The outer limit of the Oort cloud defines the cosmographical boundary of the Solar System and the region of the Sun's gravitational dominance.The Oort cloud is thought to comprise two regions: a spherical outer Oort cloud and a disc-shaped inner Oort cloud, or Hills cloud. Objects in the Oort cloud are largely composed of ices, such as water, ammonia, and methane.Astronomers conjecture that the matter composing the Oort cloud formed closer to the Sun and was scattered far into space by the gravitational effects of the giant planets early in the Solar System's evolution. Although no confirmed direct observations of the Oort cloud have been made, it may be the source of all long-period and Halley-type comets entering the inner Solar System, and many of the centaurs and Jupiter-family comets as well. The outer Oort cloud is only loosely bound to the Solar System, and thus is easily affected by the gravitational pull both of passing stars and of the Milky Way itself. These forces occasionally dislodge comets from their orbits within the cloud and send them towards the inner Solar System. Based on their orbits, most of the short-period comets may come from the scattered disc, but some may still have originated from the Oort cloud.