Small Bodies of the Solar System Transcript
... We can determine the size of an asteroid by the time taken for it to eclipse the light of a background star if it moves in front, in what is known as an occultation. If its orbital parameters are known – how far away it is, how fast it’s moving – then the duration of the eclipse can allow you to est ...
... We can determine the size of an asteroid by the time taken for it to eclipse the light of a background star if it moves in front, in what is known as an occultation. If its orbital parameters are known – how far away it is, how fast it’s moving – then the duration of the eclipse can allow you to est ...
Mass and the Properties of Main Sequence Stars
... collapse like in the case of the white dwarfs. As gravity overcomes electron degeneracy pressure, and the core collapse rapidly, the electrons and protons recombine to form neutrons, and releasing neutrinos and energy at the same time Supernova explosion. Eventually the neutron degeneracy pressure ...
... collapse like in the case of the white dwarfs. As gravity overcomes electron degeneracy pressure, and the core collapse rapidly, the electrons and protons recombine to form neutrons, and releasing neutrinos and energy at the same time Supernova explosion. Eventually the neutron degeneracy pressure ...
The Life And Times Of A Star
... surface is over 100 times farther from the center). The escape velocity from the sun’s surface is reduced by 10 times. The fastest moving gas atoms at the sun’s surface can now easily escape into space. ...
... surface is over 100 times farther from the center). The escape velocity from the sun’s surface is reduced by 10 times. The fastest moving gas atoms at the sun’s surface can now easily escape into space. ...
A Human-Powered Orrery: Connecting Learners with the Night Sky*
... long as 45 minutes to set up, similar to the one in the YouTube video. We have used this only when we have extra time such as an overnight with lots of help. However, this model could also be the basis for a more permanent model on a playground, for example. The scale for this model is 1 m = 100,000 ...
... long as 45 minutes to set up, similar to the one in the YouTube video. We have used this only when we have extra time such as an overnight with lots of help. However, this model could also be the basis for a more permanent model on a playground, for example. The scale for this model is 1 m = 100,000 ...
pompton lakes high school - Pompton Lakes School District
... theory and testing in their study of the universe. Explain the concept of the celestial sphere and how we use angular measurement to locate objects in the sky. Describe how and why the Sun, Moon and stars appear to change their positions from night to night and from month to month. Explain how ...
... theory and testing in their study of the universe. Explain the concept of the celestial sphere and how we use angular measurement to locate objects in the sky. Describe how and why the Sun, Moon and stars appear to change their positions from night to night and from month to month. Explain how ...
pompton lakes high school - Pompton Lakes School District
... theory and testing in their study of the universe. Explain the concept of the celestial sphere and how we use angular measurement to locate objects in the sky. Describe how and why the Sun, Moon and stars appear to change their positions from night to night and from month to month. Explain how ...
... theory and testing in their study of the universe. Explain the concept of the celestial sphere and how we use angular measurement to locate objects in the sky. Describe how and why the Sun, Moon and stars appear to change their positions from night to night and from month to month. Explain how ...
ASTROPHYSICS UNIVERSE - Physics
... one another. This means they have potential energy. Over time gas and dust particles will move together. The potential energy of the gas is ultimately converted to kinetic energy leading to high temperatures. The high temperatures created by the loss of potential energy can trigger fusion. The ...
... one another. This means they have potential energy. Over time gas and dust particles will move together. The potential energy of the gas is ultimately converted to kinetic energy leading to high temperatures. The high temperatures created by the loss of potential energy can trigger fusion. The ...
Name Class 1 2 3 Earth Science Final Exam Review Ch.1 What are
... What are the three types of rocks? How are they formed? Name two ways igneous rocks are formed? How are intrusive and extrusive rocks different? How are igneous rocks classified according to composition? What are the major processes involved in the formation of sedimentary rock? What are clastic sed ...
... What are the three types of rocks? How are they formed? Name two ways igneous rocks are formed? How are intrusive and extrusive rocks different? How are igneous rocks classified according to composition? What are the major processes involved in the formation of sedimentary rock? What are clastic sed ...
Astronomy Triemester Review Sheet 2015
... 6. What fuel source is used to power stars? What happens when that first source is used? 7. Describe how small and large stars move through their life cycles and die. Use the terms: red giant, planetary nebula, white dwarf, supergiant, super nova, neutron star, black hole, main sequence 8. What is t ...
... 6. What fuel source is used to power stars? What happens when that first source is used? 7. Describe how small and large stars move through their life cycles and die. Use the terms: red giant, planetary nebula, white dwarf, supergiant, super nova, neutron star, black hole, main sequence 8. What is t ...
allowed planetary orbits
... Hence, we pass to theories of the origin of the solar system and demonstrations of the chaotic dynamics and planetary migration, which at present lead to new theories of the origin of the solar system and exoplanets. We provide a review of the quantization on a cosmic scale and its application to de ...
... Hence, we pass to theories of the origin of the solar system and demonstrations of the chaotic dynamics and planetary migration, which at present lead to new theories of the origin of the solar system and exoplanets. We provide a review of the quantization on a cosmic scale and its application to de ...
CHP 13
... 1. The lowest-mass stars cannot become giants because a. they do not contain helium. b. they rotate too slowly. c. they cannot heat their centers hot enough. d. they contain strong magnetic fields. e. they never use up their hydrogen. 2. A planetary nebula is a. the expelled outer envelope of a medi ...
... 1. The lowest-mass stars cannot become giants because a. they do not contain helium. b. they rotate too slowly. c. they cannot heat their centers hot enough. d. they contain strong magnetic fields. e. they never use up their hydrogen. 2. A planetary nebula is a. the expelled outer envelope of a medi ...
Astronomy and Survey of Information
... • In pairs where the two stars are of equal brightness, they are also of the same spectral type. • In systems where the brightnesses are different, the fainter star is bluer if the brighter star is a giant star, and redder if the brighter star belongs to the main sequence. • Since mass can be determ ...
... • In pairs where the two stars are of equal brightness, they are also of the same spectral type. • In systems where the brightnesses are different, the fainter star is bluer if the brighter star is a giant star, and redder if the brighter star belongs to the main sequence. • Since mass can be determ ...
The Death of Stars
... 1. The lowest-mass stars cannot become giants because a. they do not contain helium. b. they rotate too slowly. c. they cannot heat their centers hot enough. d. they contain strong magnetic fields. e. they never use up their hydrogen. 2. A planetary nebula is a. the expelled outer envelope of a medi ...
... 1. The lowest-mass stars cannot become giants because a. they do not contain helium. b. they rotate too slowly. c. they cannot heat their centers hot enough. d. they contain strong magnetic fields. e. they never use up their hydrogen. 2. A planetary nebula is a. the expelled outer envelope of a medi ...
AST1100 Lecture Notes
... whereas super giants may have radii of several 100 solar radii. The masses of stars range from 0.08M⊙ for the least massive stars up to about 100M⊙ for the most massive stars. We will later discuss theoretical arguments explaining why there is a lower and an upper limit of star masses. We will now s ...
... whereas super giants may have radii of several 100 solar radii. The masses of stars range from 0.08M⊙ for the least massive stars up to about 100M⊙ for the most massive stars. We will later discuss theoretical arguments explaining why there is a lower and an upper limit of star masses. We will now s ...
Chapter 2
... Plains Indians—had much more than a passing familiarity with the changing nighttime sky. Figure 2.2(b) shows the Caracol temple, built by the Mayans around A.D. 1000 on Mexico’s Yucatán peninsula. This temple is much more sophisticated than Stonehenge, but it probably played a similar role as an ast ...
... Plains Indians—had much more than a passing familiarity with the changing nighttime sky. Figure 2.2(b) shows the Caracol temple, built by the Mayans around A.D. 1000 on Mexico’s Yucatán peninsula. This temple is much more sophisticated than Stonehenge, but it probably played a similar role as an ast ...
Jan 2015 - Bluewater Astronomical Society
... of pg. 13 for more about those. One of our BAS members and regular contributor of images, Robert A. prompted me to do an article on spotting the ‘elusive’ Mercury. See pg. 3 which also has pictures of successful Mercury sightings (one his and one mine). Robert’s email also prompted me to dig out an ...
... of pg. 13 for more about those. One of our BAS members and regular contributor of images, Robert A. prompted me to do an article on spotting the ‘elusive’ Mercury. See pg. 3 which also has pictures of successful Mercury sightings (one his and one mine). Robert’s email also prompted me to dig out an ...
AMOFMP3_3
... For numerical integration of the differential motion equations of 100 bodies in the above structure by the Galactica system, we specified a central-body mass equal to the Sun mass and took the mass of the peripheral body equal to the Earth mass. The distance of the bodies to the Sun was the same lik ...
... For numerical integration of the differential motion equations of 100 bodies in the above structure by the Galactica system, we specified a central-body mass equal to the Sun mass and took the mass of the peripheral body equal to the Earth mass. The distance of the bodies to the Sun was the same lik ...
L5 Protoplanetary disks Part I
... The rotation, density, temperature in the protoplanetary disk are very important for the formation of planets: They are the initial and boundary conditions of planet formation. From what we have seen, protoplanetary disks are generally believed to have relatively small mass, typically a few percents ...
... The rotation, density, temperature in the protoplanetary disk are very important for the formation of planets: They are the initial and boundary conditions of planet formation. From what we have seen, protoplanetary disks are generally believed to have relatively small mass, typically a few percents ...
Student Exploration Sheet: Growing Plants
... In the early 1900s, astronomers were able to identify many star characteristics such as color, size, temperature, and luminosity—or how bright a star is. However, astronomers did not yet understand exactly how these characteristics were related. Using the H-R Diagram Gizmo™, you will discover some o ...
... In the early 1900s, astronomers were able to identify many star characteristics such as color, size, temperature, and luminosity—or how bright a star is. However, astronomers did not yet understand exactly how these characteristics were related. Using the H-R Diagram Gizmo™, you will discover some o ...
The correct answers are written in bold, italic and underlined. The
... • very long, billions of years, because it is a fixed shell of interstellar matter being illuminated by a white dwarf star whose age is this long. • very short, about 100 years, because it represents the rapidly expanding shell of an exploding star, or supernova. • relatively short, about 50,000 yea ...
... • very long, billions of years, because it is a fixed shell of interstellar matter being illuminated by a white dwarf star whose age is this long. • very short, about 100 years, because it represents the rapidly expanding shell of an exploding star, or supernova. • relatively short, about 50,000 yea ...
Evolution of a Planetary System
... how stars can vary in their color and temperature. Star types were first invented to identify stars with different colors. For example, our Sun is a G type star. What color is it? Yellow. Star types are catalogued by the letters O B A F G K M which can be remembered by the sentence, "Oh Be A Fine Gi ...
... how stars can vary in their color and temperature. Star types were first invented to identify stars with different colors. For example, our Sun is a G type star. What color is it? Yellow. Star types are catalogued by the letters O B A F G K M which can be remembered by the sentence, "Oh Be A Fine Gi ...
10.1 Introduction
... One reason for the discrepancy may be the fact that, as we saw in Lecture 8.3.1, such low mass stars are almost entirely convective, and we have not included convection in our homologous transformations. An example of a star near the low mass limit of the hydrogen burning Main Sequence is the red dw ...
... One reason for the discrepancy may be the fact that, as we saw in Lecture 8.3.1, such low mass stars are almost entirely convective, and we have not included convection in our homologous transformations. An example of a star near the low mass limit of the hydrogen burning Main Sequence is the red dw ...
Transcript - Chandra X
... are more diverse and complicated than this diagram would lead you to believe. For instance, there are many more stellar classes than OBAFGKM; however for simplicity’s sake, only the classes that contain a large majority are shown. Absolute magnitude – the intrinsic brightness of stars – is similar ...
... are more diverse and complicated than this diagram would lead you to believe. For instance, there are many more stellar classes than OBAFGKM; however for simplicity’s sake, only the classes that contain a large majority are shown. Absolute magnitude – the intrinsic brightness of stars – is similar ...
Space Jeopardy
... Question:Planets between the asteroid belt and the sun are the _________ _________. ...
... Question:Planets between the asteroid belt and the sun are the _________ _________. ...
The Search for Planet X Transcript
... Clyde Tombaugh with his home-built telescope along with drawings he made of the planet Jupiter. Two images taken some time apart were then compared in what is termed a 'blink comparator' in which the images are rapidly viewed in turn. Any object that has moved in the time between the two exposures w ...
... Clyde Tombaugh with his home-built telescope along with drawings he made of the planet Jupiter. Two images taken some time apart were then compared in what is termed a 'blink comparator' in which the images are rapidly viewed in turn. Any object that has moved in the time between the two exposures w ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.