
CLASSICAL KUIPER BELT OBJECTS (CKBOs)
... control over the SKBOs. On billion year timescales, perihelic perturbations by Neptune will change the orbit parameters from their present values. The SKBOs form a fat doughnut around the Classical and Resonant KBOs, extending to large distances. 1999 CF119 has an aphelion distance near 200 AU, show ...
... control over the SKBOs. On billion year timescales, perihelic perturbations by Neptune will change the orbit parameters from their present values. The SKBOs form a fat doughnut around the Classical and Resonant KBOs, extending to large distances. 1999 CF119 has an aphelion distance near 200 AU, show ...
Are there Earth-like planets around other stars?
... drastically and too often for our fragile life to have survived. For example, the stability of the outer planets caused more than a thousand billion comets to be removed from the inner Solar System shortly after Earth was formed. If they had still been around today, regular collisions with them woul ...
... drastically and too often for our fragile life to have survived. For example, the stability of the outer planets caused more than a thousand billion comets to be removed from the inner Solar System shortly after Earth was formed. If they had still been around today, regular collisions with them woul ...
East Valley Astronomy Club
... they do, and why the Late Heavy Bombardment of the inner solar system occurred (and the structure and size of the Kuiper Belt, and Jupiter’s Trojan asteroids, etc., etc.). If true, the planets formed closer to the Sun, which speeds up their formation, but still not < 10 Myr. However, if the planets ...
... they do, and why the Late Heavy Bombardment of the inner solar system occurred (and the structure and size of the Kuiper Belt, and Jupiter’s Trojan asteroids, etc., etc.). If true, the planets formed closer to the Sun, which speeds up their formation, but still not < 10 Myr. However, if the planets ...
4.1 Lab XI: Introduction to the Sun and its Cycle [i/o]
... < 5o , and one with a solar latitude > 35o . You are free (encouraged) to pick any time in the past 75 years of sketches (as long as they include the necessary information). Hint: You might wish to consult Figure 4.1 to determine when the Sun has a lot of sunspots, and Figure 4.2 to determine when ...
... < 5o , and one with a solar latitude > 35o . You are free (encouraged) to pick any time in the past 75 years of sketches (as long as they include the necessary information). Hint: You might wish to consult Figure 4.1 to determine when the Sun has a lot of sunspots, and Figure 4.2 to determine when ...
Midterm 1 Completion What is the official name of the special star
... a) When did our Solar System form? (+1pt) c) Describe in detail how our Sun and our planets were formed (+3pts) 4.6 billion years ago the solar system started out as a huge cloud of gas and dust (solar nebula). If the gas in the material is dense enough, most of it collapses to the center to form th ...
... a) When did our Solar System form? (+1pt) c) Describe in detail how our Sun and our planets were formed (+3pts) 4.6 billion years ago the solar system started out as a huge cloud of gas and dust (solar nebula). If the gas in the material is dense enough, most of it collapses to the center to form th ...
Recap: High Mass Stars
... away! • From ½ all the way down to 0.075% of the Sun’s mass • Burn cool, less than 3500 K. Dim light. • Can live a REALLY long time. 10,000,000,000,000 years? • Our nearest star neighbor is Proxima Centauri, a red dwarf. • Most numerous stars in the entire Universe! ...
... away! • From ½ all the way down to 0.075% of the Sun’s mass • Burn cool, less than 3500 K. Dim light. • Can live a REALLY long time. 10,000,000,000,000 years? • Our nearest star neighbor is Proxima Centauri, a red dwarf. • Most numerous stars in the entire Universe! ...
Astronomy Powerpoint
... nuclei into the nucleus of a helium atom, releasing a tremendous amount of energy. • During nuclear fusion, energy is released because some matter is actually converted to energy. • It is thought that a star the size of the sun can exist in its present stable state for 10 billion years. As the sun i ...
... nuclei into the nucleus of a helium atom, releasing a tremendous amount of energy. • During nuclear fusion, energy is released because some matter is actually converted to energy. • It is thought that a star the size of the sun can exist in its present stable state for 10 billion years. As the sun i ...
The Scale of the Realms of the Universe
... considered its neighborhood (65 light-years diameter) • Here stars move generally with the Sun in its orbit around the center of the Galaxy • This region is inside a large bubble of hot interstellar gas called the Local Bubble. Here the gas temperature is about 1 million degrees Kelvin, and the dens ...
... considered its neighborhood (65 light-years diameter) • Here stars move generally with the Sun in its orbit around the center of the Galaxy • This region is inside a large bubble of hot interstellar gas called the Local Bubble. Here the gas temperature is about 1 million degrees Kelvin, and the dens ...
section 16 powerpoint
... surrounding the Sun where temperatures reach 12 million K, and where the solar wind originates. Sunspot cycle. The interval of ~11 years over which sunspot numbers increase and wane. Proton-proton chain. The sequence of nuclear reactions in which hydrogen nuclei (protons) interact and are fused to b ...
... surrounding the Sun where temperatures reach 12 million K, and where the solar wind originates. Sunspot cycle. The interval of ~11 years over which sunspot numbers increase and wane. Proton-proton chain. The sequence of nuclear reactions in which hydrogen nuclei (protons) interact and are fused to b ...
Slide 1
... pulled together by gravity. It breaks up into several smaller clouds and each continues to contract. 2. Within a contracting cloud, each particle attracts every other particle, so that the cloud collapses towards its centre. It forms a rotating swirling disc. ...
... pulled together by gravity. It breaks up into several smaller clouds and each continues to contract. 2. Within a contracting cloud, each particle attracts every other particle, so that the cloud collapses towards its centre. It forms a rotating swirling disc. ...
Integrative Studies 410 Our Place in the Universe
... • The energy of the electron depends on orbit • When an electron jumps from one orbital to another, it emits (emission line) or absorbs (absorption line) a photon of a certain energy • The frequency of emitted or absorbed photon is related to its energy ...
... • The energy of the electron depends on orbit • When an electron jumps from one orbital to another, it emits (emission line) or absorbs (absorption line) a photon of a certain energy • The frequency of emitted or absorbed photon is related to its energy ...
Monday, March 3
... between religion and science over the last few centuries have been marked by deep and enduring hostility…is not only historically inaccurate, but actually a caricature so grotesque that what needs to be explained is how it could possibly have achieved any degree of respectability’ ...
... between religion and science over the last few centuries have been marked by deep and enduring hostility…is not only historically inaccurate, but actually a caricature so grotesque that what needs to be explained is how it could possibly have achieved any degree of respectability’ ...
The Solar System
... (Where do stars come from?) - Stars begin as a large cloud of gas and dust called a nebula, which contracts due to gravity when it gets large enough. As temperatures increase, nuclear fusion begins and light is given off. Now it’s a star. - Most of its life is spent as a main sequence star -- an ave ...
... (Where do stars come from?) - Stars begin as a large cloud of gas and dust called a nebula, which contracts due to gravity when it gets large enough. As temperatures increase, nuclear fusion begins and light is given off. Now it’s a star. - Most of its life is spent as a main sequence star -- an ave ...
Can you figure out which of the stars shown here have planets
... Distance: 8 light-minutes Planets known: 8 (plus dwarf planets and asteroids) Planet masses: from 5% to 300 times Earth Our sun is also a star, and we know of eight planets that orbit it. Can you name them all? You can see most of them in the night sky, but Uranus and Neptune are too faint to be see ...
... Distance: 8 light-minutes Planets known: 8 (plus dwarf planets and asteroids) Planet masses: from 5% to 300 times Earth Our sun is also a star, and we know of eight planets that orbit it. Can you name them all? You can see most of them in the night sky, but Uranus and Neptune are too faint to be see ...
Astronomy Lecture 3b
... ___ 80. ? has an orbital period of 29.461 years and a period of rotation of 10 hours, 13 minutes and 59 seconds. The average density is less than that of water. A.Saturn B.Uranus C.Pluto D.Neptune E.Jupiter ___ 81. ? is a bluish color. It is sometimes characterized by deep blue spots, like the Great ...
... ___ 80. ? has an orbital period of 29.461 years and a period of rotation of 10 hours, 13 minutes and 59 seconds. The average density is less than that of water. A.Saturn B.Uranus C.Pluto D.Neptune E.Jupiter ___ 81. ? is a bluish color. It is sometimes characterized by deep blue spots, like the Great ...
How Big is the Solar System?
... suddenly larger leap of 95 paces (more than twice as as the total distance walked up till then). This gap marks the boundary between the inner and outer solar systems. The inner solar system contains the four small, hard, "terrestrial" (Earth-like) planet; the outer solar system contains the four la ...
... suddenly larger leap of 95 paces (more than twice as as the total distance walked up till then). This gap marks the boundary between the inner and outer solar systems. The inner solar system contains the four small, hard, "terrestrial" (Earth-like) planet; the outer solar system contains the four la ...
Clever Catch - American Educational Products
... How will a yellow star, like the sun, change when its supply of hydrogen is gone? ...
... How will a yellow star, like the sun, change when its supply of hydrogen is gone? ...
Exploring the Solar System - The Federation of Galaxy Explorers
... west or west to east. Lightning, more powerful than any that has been experienced on Earth, has been noted in Jupiter's atmosphere. Also in Jupiter's atmosphere are oval features that are thought to be circular winds. The most prominent of these is the Great Red Spot, a hurricanelike storm that has ...
... west or west to east. Lightning, more powerful than any that has been experienced on Earth, has been noted in Jupiter's atmosphere. Also in Jupiter's atmosphere are oval features that are thought to be circular winds. The most prominent of these is the Great Red Spot, a hurricanelike storm that has ...
File
... • As good as many of the telescopes on Earth are, by moving outside the atmosphere, space-based observation has become our most powerful method of space observation. • Satellites launched from Earth provide us with communication and safety every day. • Geosynchronous satellites orbit at the same rat ...
... • As good as many of the telescopes on Earth are, by moving outside the atmosphere, space-based observation has become our most powerful method of space observation. • Satellites launched from Earth provide us with communication and safety every day. • Geosynchronous satellites orbit at the same rat ...
powerpoint - High Energy Physics at Wayne State
... monoxide ions but other types of ions also contribute to the light. Since the gas is so diffuse, the observed spectrum is an ...
... monoxide ions but other types of ions also contribute to the light. Since the gas is so diffuse, the observed spectrum is an ...
The Outer Planets: Mercury, Venus, Earth and Mars How are the
... 2. What are the main characteristics used to classify stars? For each characteristic, explain or describe the possible options in each category. For example: Size of stars – what are the difference sizes, how are stars measured, what star examples fall into each category? ...
... 2. What are the main characteristics used to classify stars? For each characteristic, explain or describe the possible options in each category. For example: Size of stars – what are the difference sizes, how are stars measured, what star examples fall into each category? ...
PSCI 1414 General Astronomy
... The heliocentric model helped determined the arrangement of the planets Because Mercury and Venus are always observed fairly near the Sun in the sky, their orbits must be smaller than the Earth’s. Planets in such orbits are called inferior planets. The other visible planets (Mars, Jupiter, and Satur ...
... The heliocentric model helped determined the arrangement of the planets Because Mercury and Venus are always observed fairly near the Sun in the sky, their orbits must be smaller than the Earth’s. Planets in such orbits are called inferior planets. The other visible planets (Mars, Jupiter, and Satur ...
Comparing the Chemical Compositions of the Sun and Earth
... Notice that the blue bars of the histogram are always lower or equal to the yellow bars. The difference between the bars is the degree to which the Earth has lost its volatiles. Any element that can only appear in a gaseous state will be severely depleted on Earth (e.g. He, Ne, Ar). Other elements t ...
... Notice that the blue bars of the histogram are always lower or equal to the yellow bars. The difference between the bars is the degree to which the Earth has lost its volatiles. Any element that can only appear in a gaseous state will be severely depleted on Earth (e.g. He, Ne, Ar). Other elements t ...
Solar System

The Solar System comprises the Sun and the planetary system that orbits it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies such as comets and asteroids. Of those that orbit the Sun indirectly, two are larger than the smallest planet.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed largely of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.The Solar System also contains smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, populations of trans-Neptunian objects composed mostly of ices, and beyond them a newly discovered population of sednoids. Within these populations are several dozen to possibly tens of thousands of objects large enough to have been rounded by their own gravity. Such objects are categorized as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed ""moons"" after the Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind; it extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located in the Orion Arm, 26,000 light-years from the center of the Milky Way.