8-4.1 - S2TEM Centers SC
... Asteroids are round. (Asteroids have a variety of irregular shapes.) The asteroid belt is densely populated. (Scientists state that all asteroids combined together would form a single solar system body only 1500 km across, which is a fraction of the Earth’s diameter.) Comets and meteors are th ...
... Asteroids are round. (Asteroids have a variety of irregular shapes.) The asteroid belt is densely populated. (Scientists state that all asteroids combined together would form a single solar system body only 1500 km across, which is a fraction of the Earth’s diameter.) Comets and meteors are th ...
Lecture Outlines Natural Disasters, 5th edition
... Sources of Extraterrestrial Debris Comets • Short-period (orbit less than 200 years) or long-period • Solar System surrounded by: – About one billion comets in Kuiper belt – flattened disk (in plane of Solar System) from near Neptune to about 50 astronomical units (93 million miles, distance from E ...
... Sources of Extraterrestrial Debris Comets • Short-period (orbit less than 200 years) or long-period • Solar System surrounded by: – About one billion comets in Kuiper belt – flattened disk (in plane of Solar System) from near Neptune to about 50 astronomical units (93 million miles, distance from E ...
Comets, Asteroids, and Meteors
... • Comets: small bodies made out of dust and ices ("dirty snowballs"). • The term "comet" derives from the Greek aster kometes, which means "longhaired star"---a reference to the tail. • Since the observations of Tycho Brahe, comets are known to be members of the Solar System well beyond Earth's atmo ...
... • Comets: small bodies made out of dust and ices ("dirty snowballs"). • The term "comet" derives from the Greek aster kometes, which means "longhaired star"---a reference to the tail. • Since the observations of Tycho Brahe, comets are known to be members of the Solar System well beyond Earth's atmo ...
Solar System Debris
... • In addition to the Asteroid Belt, the Solar System appears to have a second belt, now called the Kuiper belt: – Support for this comes from the detection of about 600 small, presumably icy, bodies orbiting near and beyond Pluto (first object discovered was 1992QB1). – Extent of belt is unknown, bu ...
... • In addition to the Asteroid Belt, the Solar System appears to have a second belt, now called the Kuiper belt: – Support for this comes from the detection of about 600 small, presumably icy, bodies orbiting near and beyond Pluto (first object discovered was 1992QB1). – Extent of belt is unknown, bu ...
Document
... Although the tail may give an impression of motion because it extends out only to one side, the comet does not move noticeably with respect to the stars as we casually watch during the course of a night. ...
... Although the tail may give an impression of motion because it extends out only to one side, the comet does not move noticeably with respect to the stars as we casually watch during the course of a night. ...
Formation of the Sun and the Planets
... Both impact structures are about 35 million years old, with diameters near 100 km. These crater events could have been responsible for the extinctions found near the EoceneOligocene boundary layer when 20% of the subgenera became extinct (compared to 80% at KT boundary). ...
... Both impact structures are about 35 million years old, with diameters near 100 km. These crater events could have been responsible for the extinctions found near the EoceneOligocene boundary layer when 20% of the subgenera became extinct (compared to 80% at KT boundary). ...
that provides the scientific rationale for sample return from asteroids
... plex (Joswiak et al. 2000). Although their provenance is unknown, the unique characteristics of IDPs indicate that meteorites are a limited sampling of the most primitive asteroids. Sample return from asteroids Returning samples from an asteroid would have a strong impact on scientific issues that ...
... plex (Joswiak et al. 2000). Although their provenance is unknown, the unique characteristics of IDPs indicate that meteorites are a limited sampling of the most primitive asteroids. Sample return from asteroids Returning samples from an asteroid would have a strong impact on scientific issues that ...
The Solar System Interplanetary Matter and the Birth of the Planets
... •Short period comets orbit the Sun in 200 years or less (e.g. Halley’s comet) • The orientation of their orbital plane are close to the ecliptic plane • Short period comets may have originated in the Kuiper belt • Kuiper belt comets get “kicked” into an eccentric orbit, bringing them into the inner ...
... •Short period comets orbit the Sun in 200 years or less (e.g. Halley’s comet) • The orientation of their orbital plane are close to the ecliptic plane • Short period comets may have originated in the Kuiper belt • Kuiper belt comets get “kicked” into an eccentric orbit, bringing them into the inner ...
Make a Comet Motion Flip Book
... Halley’s Comet is a “short period” comet, with an orbit extending just beyond the distance of Neptune from the Sun. By modeling its orbit with a sequence of images, students can observe that the comet’s tail only begins to develop inside the orbit of Jupiter. They will see that the comet speeds up a ...
... Halley’s Comet is a “short period” comet, with an orbit extending just beyond the distance of Neptune from the Sun. By modeling its orbit with a sequence of images, students can observe that the comet’s tail only begins to develop inside the orbit of Jupiter. They will see that the comet speeds up a ...
Slide 1 - Personal.psu.edu
... • The star continues to collapse until the inward force of gravity is balanced by the outward pressure from the core. The star is now on the Main Sequence • More massive stars follow the same process, but more quickly • Less massive stars form more slowly ...
... • The star continues to collapse until the inward force of gravity is balanced by the outward pressure from the core. The star is now on the Main Sequence • More massive stars follow the same process, but more quickly • Less massive stars form more slowly ...
The Milky Way
... • Make sure you have a ride • Maps will be available in case you get separated • Due to time change, we will be out there fairly ...
... • Make sure you have a ride • Maps will be available in case you get separated • Due to time change, we will be out there fairly ...
comet2
... Grazing the Sun Kamal Lodaya, The Institute of Mathematical Sciences, Chennai The famous astronomer Johannes Kepler found that the orbits of the planets around the Sun are not circular but elliptical. his discovery came from the study of the orbit of Mars (see article on Planets and their Orbits). K ...
... Grazing the Sun Kamal Lodaya, The Institute of Mathematical Sciences, Chennai The famous astronomer Johannes Kepler found that the orbits of the planets around the Sun are not circular but elliptical. his discovery came from the study of the orbit of Mars (see article on Planets and their Orbits). K ...
Is Pluto a Planet
... physically meaningful definition under which we'd have nine planets", because at least a half-dozen main-belt asteroids (along with several recently discovered trans-neptunian objects*) are large, spherical objects that would also satisfy definitions of "major planethood" if sphericity is the crite ...
... physically meaningful definition under which we'd have nine planets", because at least a half-dozen main-belt asteroids (along with several recently discovered trans-neptunian objects*) are large, spherical objects that would also satisfy definitions of "major planethood" if sphericity is the crite ...
Formation of the Solar System Section 28.1
... Scientific theories on the origin of the solar system must explain observed facts, such as the shape of the solar system, differences among the planets, and the nature of the oldest planetary surfaces—asteroids, meteorites, and comets. ...
... Scientific theories on the origin of the solar system must explain observed facts, such as the shape of the solar system, differences among the planets, and the nature of the oldest planetary surfaces—asteroids, meteorites, and comets. ...
Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and
... • Not a gas giant like other outer planets • Has an icy composition like a comet • Has a very elliptical, inclined orbit • Has more in common with comets than with the eight major planets ...
... • Not a gas giant like other outer planets • Has an icy composition like a comet • Has a very elliptical, inclined orbit • Has more in common with comets than with the eight major planets ...
UNIVERSITY OF BRISTOL
... How do the Hertzsprung-Russell diagrams of simple stellar populations (with all their stars formed at the same epoch) vary as the system ages? How is this reflected in the overall photometric properties of the system? (b) A globular cluster has a mass of 106 solar masses and a mass-to-light ratio of ...
... How do the Hertzsprung-Russell diagrams of simple stellar populations (with all their stars formed at the same epoch) vary as the system ages? How is this reflected in the overall photometric properties of the system? (b) A globular cluster has a mass of 106 solar masses and a mass-to-light ratio of ...
Chapter_7
... • The comets are partially vaporized by the flow of energy from the sun. • Their composition puts them into 2 families, much the same as the planets. • Asteroids and comets also differ in their location within the Solar System. • Most asteroids are found in a large gap between Mars and Jupiter calle ...
... • The comets are partially vaporized by the flow of energy from the sun. • Their composition puts them into 2 families, much the same as the planets. • Asteroids and comets also differ in their location within the Solar System. • Most asteroids are found in a large gap between Mars and Jupiter calle ...
Chapter 8 Formation of the Solar System Agenda What properties of
... The nebular theory states that our solar system formed from the gravitational collapse of a giant interstellar gas cloud—the solar nebula ...
... The nebular theory states that our solar system formed from the gravitational collapse of a giant interstellar gas cloud—the solar nebula ...
Comets - LEAPShares
... Comet nuclei are fragments of ice and rock often orbiting at a great inclination to the plane of the ecliptic. In the Kuiper belt and Oort cloud, comets have fairly circular orbits. When close to the Sun, they generally move in highly elliptical orbits. Many comet nuclei orbit the Sun in the Kuiper ...
... Comet nuclei are fragments of ice and rock often orbiting at a great inclination to the plane of the ecliptic. In the Kuiper belt and Oort cloud, comets have fairly circular orbits. When close to the Sun, they generally move in highly elliptical orbits. Many comet nuclei orbit the Sun in the Kuiper ...
DTU_9e_ch09 - University of San Diego Home Pages
... gravitational attraction of different materials under Earth’s surface, geologists create images of underground features. Concentric rings of the underground Chicxulub Crater (right inset) lie under a portion of the Yucatán Peninsula. This crater has been dated to 65 million years ago and is believed ...
... gravitational attraction of different materials under Earth’s surface, geologists create images of underground features. Concentric rings of the underground Chicxulub Crater (right inset) lie under a portion of the Yucatán Peninsula. This crater has been dated to 65 million years ago and is believed ...
DOWNLOAD THIS RESOURCE (6.3 MB Powerpoint Presentation)
... • Through a process called accretion, stars are forged and planets ...
... • Through a process called accretion, stars are forged and planets ...
13. Remnants of Rock and Ice: Asteroids, Comets, and Pluto
... • Analysis of orbits shows where comets in the inner Solar System have come from. Based on the number of comets seen in the inner Solar System and the relatively short times during which comets can survive in the inner Solar System, we conclude that the Oort cloud and Kuiper belt must contain enormo ...
... • Analysis of orbits shows where comets in the inner Solar System have come from. Based on the number of comets seen in the inner Solar System and the relatively short times during which comets can survive in the inner Solar System, we conclude that the Oort cloud and Kuiper belt must contain enormo ...
Field Star Distributions of the Hercules Thick Disk Cloud
... about the l=0 line of symmetry. In Figure 9 presents the calculation for two fields where the excess was not seen and Figure 10 presents the excess for two fields with the excess. While no difference is seen in the distribution of Figure 9, Figure 10 shows the Q1 line of sight has more stars between ...
... about the l=0 line of symmetry. In Figure 9 presents the calculation for two fields where the excess was not seen and Figure 10 presents the excess for two fields with the excess. While no difference is seen in the distribution of Figure 9, Figure 10 shows the Q1 line of sight has more stars between ...
Programme 16
... between asteroids and meteorites. Furthermore, a great deal of efforts is devoted to the understanding of the similarities between asteroids and comets. The same material causing the low albedo in the asteroids of the outer main belt could be indeed a component of the cometary nuclei. C - Among mino ...
... between asteroids and meteorites. Furthermore, a great deal of efforts is devoted to the understanding of the similarities between asteroids and comets. The same material causing the low albedo in the asteroids of the outer main belt could be indeed a component of the cometary nuclei. C - Among mino ...
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.