How the Solar System formed
... Accretion: Formation of the Terrestrial Planets Accretion The process by which small ‘seeds’ grew into planets. • Near the Sun, where temperature is high, only metals and rocks can condense. The small pieces of metals and rocks (the planetesimals) collide and stick together to form larger piece of ...
... Accretion: Formation of the Terrestrial Planets Accretion The process by which small ‘seeds’ grew into planets. • Near the Sun, where temperature is high, only metals and rocks can condense. The small pieces of metals and rocks (the planetesimals) collide and stick together to form larger piece of ...
How the Solar System formed
... Accretion: Formation of the Terrestrial Planets Accretion The process by which small ‘seeds’ grew into planets. • Near the Sun, where temperature is high, only metals and rocks can condense. The small pieces of metals and rocks (the planetesimals) collide and stick together to form larger piece of ...
... Accretion: Formation of the Terrestrial Planets Accretion The process by which small ‘seeds’ grew into planets. • Near the Sun, where temperature is high, only metals and rocks can condense. The small pieces of metals and rocks (the planetesimals) collide and stick together to form larger piece of ...
Issue number 138 - spring 2011
... Since the mid 1990s, increasing discoveries of objects situated in the Kuiper Belt (a region of orbiting ...
... Since the mid 1990s, increasing discoveries of objects situated in the Kuiper Belt (a region of orbiting ...
CIDER 2012: Deep Time Impacts Tutorial Handout (v4) July 17
... d. Giant impacts are hypothesized to produce odd features in the planets: Mercury’s large core fraction, Venus retrograde rotation, Earth’s moon, Mars crustal dichotomy, Pluto system, Haumea system e. Calculations in this phase are done by N-body codes that are extremely computationally intensive an ...
... d. Giant impacts are hypothesized to produce odd features in the planets: Mercury’s large core fraction, Venus retrograde rotation, Earth’s moon, Mars crustal dichotomy, Pluto system, Haumea system e. Calculations in this phase are done by N-body codes that are extremely computationally intensive an ...
Venus and Uranus – The Strange Twins
... counterclockwise. Six of the planets rotate counterclockwise. What happened to these two planets? To answer that question, we have to go back to the beginning of the Solar System. While the planets were forming, more than our eight planets formed in the early history of the Solar System. Large bodie ...
... counterclockwise. Six of the planets rotate counterclockwise. What happened to these two planets? To answer that question, we have to go back to the beginning of the Solar System. While the planets were forming, more than our eight planets formed in the early history of the Solar System. Large bodie ...
ph709-14
... Most dust grains in the disk are not agglomerating to form larger bodies; instead, they are eroding and being moved away from the star by radiation pressure when their size goes below about 2-10 microns. Theoretically, this disk should have lasted for only around 10 million years. That it has persis ...
... Most dust grains in the disk are not agglomerating to form larger bodies; instead, they are eroding and being moved away from the star by radiation pressure when their size goes below about 2-10 microns. Theoretically, this disk should have lasted for only around 10 million years. That it has persis ...
National Science Standards: Grades 5-8
... System planetary body cards and place the cards in their correct sequence from the Sun. The second step requires students to predict or place planets in an approximate scale distance from the sun and each other. The last step requires students to place the cards in the correct order and in a scale d ...
... System planetary body cards and place the cards in their correct sequence from the Sun. The second step requires students to predict or place planets in an approximate scale distance from the sun and each other. The last step requires students to place the cards in the correct order and in a scale d ...
Survey of the Solar System
... Components of the Solar System Age of the Solar System All objects in the Solar System seem to have formed at nearly the same time Radioactive dating of rocks from the Earth, Moon, and some asteroids suggests an age of about 4.5 billion yrs A similar age is found for the Sun based on curren ...
... Components of the Solar System Age of the Solar System All objects in the Solar System seem to have formed at nearly the same time Radioactive dating of rocks from the Earth, Moon, and some asteroids suggests an age of about 4.5 billion yrs A similar age is found for the Sun based on curren ...
File
... of the brighter ones slowly change their position in relation to the other stars. The astronomer names these stars planetai, the Greek word that means “wanderers.” Building on the observations of the ancient Greeks, we now know that the planetai are actually planets, not wandering stars. Because of ...
... of the brighter ones slowly change their position in relation to the other stars. The astronomer names these stars planetai, the Greek word that means “wanderers.” Building on the observations of the ancient Greeks, we now know that the planetai are actually planets, not wandering stars. Because of ...
Lab 6: Kepler`s Laws Introduction Section 1: First Law
... parts of its orbit shown in Figure 6.3? Firstly, let's cover some terminology for planetary orbits. In our solar system the Sun sits at one focus while nothing sits at the other. Astronomers use certain terms to refer to a planetary orbit, shown in Figure 6.4. The size of the orbit is described by t ...
... parts of its orbit shown in Figure 6.3? Firstly, let's cover some terminology for planetary orbits. In our solar system the Sun sits at one focus while nothing sits at the other. Astronomers use certain terms to refer to a planetary orbit, shown in Figure 6.4. The size of the orbit is described by t ...
The Cosmic Perspective Asteroids, Comets, and Dwarf Planets
... a) Meteorites are dark and easy to spot against the ice in Antarctica. b) Meteorites melt coming through the atmosphere and usually only survive if quickly refrozen by the cold temperatures of Antarctica. c) Because of the slower rotational speed of Earth near the poles, meteorites are more likel ...
... a) Meteorites are dark and easy to spot against the ice in Antarctica. b) Meteorites melt coming through the atmosphere and usually only survive if quickly refrozen by the cold temperatures of Antarctica. c) Because of the slower rotational speed of Earth near the poles, meteorites are more likel ...
Achieving the Goals and Objectives of the 2008 NASA Astrobiology
... be analogous to the terrestrial planets Mercury, Venus, Earth, and Mars. In fact, these hot and warm super-Earths appear to be incredibly commonplace, with some estimates being that such worlds are present around about 1/3 of all stars like the Sun (Mayor et al. 2009). One star, HD 40307 (see Figure ...
... be analogous to the terrestrial planets Mercury, Venus, Earth, and Mars. In fact, these hot and warm super-Earths appear to be incredibly commonplace, with some estimates being that such worlds are present around about 1/3 of all stars like the Sun (Mayor et al. 2009). One star, HD 40307 (see Figure ...
Theory of planet formation
... – why is there a brown-dwarf desert? – how did planets in solar system get onto circular, coplanar orbits? – how do you make planets with solid cores, or terrestrial planets? – theory suggests that it is hard to make objects as small as Jupiter by fragmentation of a gas cloud ...
... – why is there a brown-dwarf desert? – how did planets in solar system get onto circular, coplanar orbits? – how do you make planets with solid cores, or terrestrial planets? – theory suggests that it is hard to make objects as small as Jupiter by fragmentation of a gas cloud ...
Spectral fingerprinting student project
... scientists may soon be hot on its trail. In 1995, the first planet around another sun-like star was discovered by astronomers using Doppler detection—a method that scientists have used to reveal Saturn-sized (or larger) planets close to their parent suns. Today, astronomers know of more than 100 can ...
... scientists may soon be hot on its trail. In 1995, the first planet around another sun-like star was discovered by astronomers using Doppler detection—a method that scientists have used to reveal Saturn-sized (or larger) planets close to their parent suns. Today, astronomers know of more than 100 can ...
High Contrast - University of Arizona
... Current theories of disk/planet evolution suggest a presumed epoch of planet-building via the formation and agglomerative growth of embryonic bodies, and the subsequent accretion of gaseous atmospheres onto hot giant planets, is attendant with a significant decline in the gas-to-dust ratios in the r ...
... Current theories of disk/planet evolution suggest a presumed epoch of planet-building via the formation and agglomerative growth of embryonic bodies, and the subsequent accretion of gaseous atmospheres onto hot giant planets, is attendant with a significant decline in the gas-to-dust ratios in the r ...
New Worlds Ahead: The Discovery of Exoplanets
... gas giant planets like Jupiter (318 Earth masses, or M⊕ ) and Saturn (95 M⊕ ) are located further away (5 and 10 AU), and finally the icy giants Uranus and Neptune, located even further (20 and 30 AU), are much less massive (14 M⊕ and 17 M⊕ ). Pluto does not fit well in this picture, but in fact it ...
... gas giant planets like Jupiter (318 Earth masses, or M⊕ ) and Saturn (95 M⊕ ) are located further away (5 and 10 AU), and finally the icy giants Uranus and Neptune, located even further (20 and 30 AU), are much less massive (14 M⊕ and 17 M⊕ ). Pluto does not fit well in this picture, but in fact it ...
04 Solar System
... • The sun lies at one focus of an ellipse • Mars will retrograde when it reaches a certain position on its epicycle • All planets lie between the Sun and Earth Copyright © 2010 Pearson Education, Inc. ...
... • The sun lies at one focus of an ellipse • Mars will retrograde when it reaches a certain position on its epicycle • All planets lie between the Sun and Earth Copyright © 2010 Pearson Education, Inc. ...
Chapter 2 Universe and Planetary Geology
... Pluto has been officially demoted from its status as a planet. The International Astronomical Union (IAU), at a meeting in August 2006, voted on their first "official" definition of a planet. Based on this new definition, Pluto is no longer a planet. According to the IAU's definition, our Solar Syst ...
... Pluto has been officially demoted from its status as a planet. The International Astronomical Union (IAU), at a meeting in August 2006, voted on their first "official" definition of a planet. Based on this new definition, Pluto is no longer a planet. According to the IAU's definition, our Solar Syst ...
The Cosmic Perspective Our Planetary System
... a) The number of small rocky planets is equal to the number of large gas-rich planets. b) There are a large number of small rocky and icy objects in different regions of the solar system. c) The planets and moons generally orbit in the same plane. d) The Earth has an unusually large moon. e) Ur ...
... a) The number of small rocky planets is equal to the number of large gas-rich planets. b) There are a large number of small rocky and icy objects in different regions of the solar system. c) The planets and moons generally orbit in the same plane. d) The Earth has an unusually large moon. e) Ur ...
Word Doc - CAASTRO
... ● Click the NEXT button and follow the instructions on the left to collect data on the days between ‘blinks’ and how much the brightness of the star drops for each blink. Each blink is when the exoplanet moves in front of the star, or ‘transits’, blocking out some of the star’s light. After collecti ...
... ● Click the NEXT button and follow the instructions on the left to collect data on the days between ‘blinks’ and how much the brightness of the star drops for each blink. Each blink is when the exoplanet moves in front of the star, or ‘transits’, blocking out some of the star’s light. After collecti ...
SIM-Lite Space Astrometric Observatory
... If the probability of a false alarm is in the 10‘s of percent, this does NOT constitute a major discovery The claim of finding a planet in the habitable zone can be made with a Measured orbit, (Not a guess) The claim of finding a terrestrial planet can be made with a Measured mass, not a guess of th ...
... If the probability of a false alarm is in the 10‘s of percent, this does NOT constitute a major discovery The claim of finding a planet in the habitable zone can be made with a Measured orbit, (Not a guess) The claim of finding a terrestrial planet can be made with a Measured mass, not a guess of th ...
E8B2_CRT_CR_MSTIPS_Final
... Response addresses all parts of the question clearly and correctly. A. Asteroids and comets are similar in that both revolve around the Sun in measurable orbits. Differences are that asteroids orbit within the plane of the ecliptic and generally in the same direction of revolution, while the orbits ...
... Response addresses all parts of the question clearly and correctly. A. Asteroids and comets are similar in that both revolve around the Sun in measurable orbits. Differences are that asteroids orbit within the plane of the ecliptic and generally in the same direction of revolution, while the orbits ...
The Planets Testify of the Creator
... be thought of as an continuous repetition of days numbered from 1 to 7. These 9 "lords" may have originally referred to the Moon, Mercury,Venus, Sun, Mars, Jupiter, Saturn, Uranus, and Neptune, even as our sevenday week is associated with the first seven in that series.[4] Pluto, the other socalle ...
... be thought of as an continuous repetition of days numbered from 1 to 7. These 9 "lords" may have originally referred to the Moon, Mercury,Venus, Sun, Mars, Jupiter, Saturn, Uranus, and Neptune, even as our sevenday week is associated with the first seven in that series.[4] Pluto, the other socalle ...
Jupiter Eccentric Planets
... There are numbers of tilted and/or eccentric transiting planets These planetary systems are interesting targets that we may be able to discriminate planetary migration mechanisms No detection is still interesting to refute Kozai migration Detections of outer massive bodies are very interesti ...
... There are numbers of tilted and/or eccentric transiting planets These planetary systems are interesting targets that we may be able to discriminate planetary migration mechanisms No detection is still interesting to refute Kozai migration Detections of outer massive bodies are very interesti ...
6.6 How Did the Solar System Form?
... (counterclockwise as viewed from above Earth’s North Pole) is the same as the direction in which the Sun Rotates. 5.Our Planetary System is Highly Differentiated. 6.The Asteroids are Very Old and Exhibit a Range of Properties not Characteristic of Either the Inner or the Outer Planets or their Moons ...
... (counterclockwise as viewed from above Earth’s North Pole) is the same as the direction in which the Sun Rotates. 5.Our Planetary System is Highly Differentiated. 6.The Asteroids are Very Old and Exhibit a Range of Properties not Characteristic of Either the Inner or the Outer Planets or their Moons ...
Dwarf planet
A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite. That is, it is in direct orbit of the Sun, and is massive enough for its shape to be in hydrostatic equilibrium under its own gravity, but has not cleared the neighborhood around its orbit.The term dwarf planet was adopted in 2006 as part of a three-way categorization of bodies orbiting the Sun, brought about by an increase in discoveries of objects farther away from the Sun than Neptune that rivaled Pluto in size, and finally precipitated by the discovery of an even more massive object, Eris. The exclusion of dwarf planets from the roster of planets by the IAU has been both praised and criticized; it was said to be the ""right decision"" by astronomer Mike Brown, who discovered Eris and other new dwarf planets, but has been rejected by Alan Stern, who had coined the term dwarf planet in 1990.The International Astronomical Union (IAU) currently recognizes five dwarf planets: Ceres, Pluto, Haumea, Makemake, and Eris. Brown criticizes this official recognition: ""A reasonable person might think that this means that there are five known objects in the solar system which fit the IAU definition of dwarf planet, but this reasonable person would be nowhere close to correct.""It is suspected that another hundred or so known objects in the Solar System are dwarf planets. Estimates are that up to 200 dwarf planets may be found when the entire region known as the Kuiper belt is explored, and that the number may exceed 10,000 when objects scattered outside the Kuiper belt are considered. Individual astronomers recognize several of these, and in August 2011 Mike Brown published a list of 390 candidate objects, ranging from ""nearly certain"" to ""possible"" dwarf planets. Brown currently identifies eleven known objects – the five accepted by the IAU plus 2007 OR10, Quaoar, Sedna, Orcus, 2002 MS4 and Salacia – as ""virtually certain"", with another dozen highly likely. Stern states that there are more than a dozen known dwarf planets.However, only two of these bodies, Ceres and Pluto, have been observed in enough detail to demonstrate that they actually fit the IAU's definition. The IAU accepted Eris as a dwarf planet because it is more massive than Pluto. They subsequently decided that unnamed trans-Neptunian objects with an absolute magnitude brighter than +1 (and hence a diameter of ≥838 km assuming a geometric albedo of ≤1) are to be named under the assumption that they are dwarf planets. The only two such objects known at the time, Makemake and Haumea, went through this naming procedure and were declared to be dwarf planets. The question of whether other likely objects are dwarf planets has never been addressed by the IAU. The classification of bodies in other planetary systems with the characteristics of dwarf planets has not been addressed.