Chapter 2
... Planetary Geology. Define the term planetary geology in everyday terms. Why do we believe that differences between planetary surfaces can be traced to fundamental properties (size, distance from the Sun, rotation) instead of random occurrences that only affected individual planets? ...
... Planetary Geology. Define the term planetary geology in everyday terms. Why do we believe that differences between planetary surfaces can be traced to fundamental properties (size, distance from the Sun, rotation) instead of random occurrences that only affected individual planets? ...
Lecture 13. Black Holes - Politechnika Wrocławska
... – Hotter, more luminous, bigger, and have shorter lifetime ...
... – Hotter, more luminous, bigger, and have shorter lifetime ...
AST101 Lecture 13 The Lives of the Stars
... T increases to compensate Nuclear reaction rate increases L increases Tph increases Stars evolve up and to left in MS (but not much) Solar luminosity has increased by 30% in 4.6 Gyr ...
... T increases to compensate Nuclear reaction rate increases L increases Tph increases Stars evolve up and to left in MS (but not much) Solar luminosity has increased by 30% in 4.6 Gyr ...
AST101_lect_13
... T increases to compensate Nuclear reaction rate increases L increases Tph increases Stars evolve up and to left in MS (but not much) Solar luminosity has increased by 30% in 4.6 Gyr ...
... T increases to compensate Nuclear reaction rate increases L increases Tph increases Stars evolve up and to left in MS (but not much) Solar luminosity has increased by 30% in 4.6 Gyr ...
Oct5
... * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant winds, planetary nebulae and supernovae. * Older stars on the main sequence have relatively fewer at ...
... * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant winds, planetary nebulae and supernovae. * Older stars on the main sequence have relatively fewer at ...
Word - El Camino College
... image). The planet has about 5 times Jupiter’s mass, well within the range of being a planet and way too low to be even a brown dwarf, let alone a star. It orbits the star at about 1.5 times the distance Pluto orbits from the Sun. The two are close by as these things go: just 70 parsecs (230 light y ...
... image). The planet has about 5 times Jupiter’s mass, well within the range of being a planet and way too low to be even a brown dwarf, let alone a star. It orbits the star at about 1.5 times the distance Pluto orbits from the Sun. The two are close by as these things go: just 70 parsecs (230 light y ...
Chapter 15 Test Study Sheet
... learned from studying stars and galaxies and their evolution. As a basis for understanding this concept: a. Students know galaxies are clusters of billions of stars and may have different shapes. Know how scientists can detect the presence of a planet around a distant star. Know that there are t ...
... learned from studying stars and galaxies and their evolution. As a basis for understanding this concept: a. Students know galaxies are clusters of billions of stars and may have different shapes. Know how scientists can detect the presence of a planet around a distant star. Know that there are t ...
1700_orbits
... the Earth is. It takes Jupiter 12 times longer to go around the Sun than it does for the Earth. • Not known: How many kilometers (or miles) are the Earth and Jupiter from the Sun? • Fundamental Question: What is the absolute scale of the Solar System? ...
... the Earth is. It takes Jupiter 12 times longer to go around the Sun than it does for the Earth. • Not known: How many kilometers (or miles) are the Earth and Jupiter from the Sun? • Fundamental Question: What is the absolute scale of the Solar System? ...
lec01_26sep2011
... heat, the solar atmosphere originally extended beyond the orbits of all the planets and that it progressively shrank to its present limits. This might have occurred through causes similar to those which made the famous star of 1572 suddenly shine so brightly for several months in the constellation o ...
... heat, the solar atmosphere originally extended beyond the orbits of all the planets and that it progressively shrank to its present limits. This might have occurred through causes similar to those which made the famous star of 1572 suddenly shine so brightly for several months in the constellation o ...
Life in the Universe
... bursters, and comet impacts. Such threats tend to increase close to the galactic center. The outer limit is imposed by galactic chemical evolution, specifically the abundance of heavier elements, such as carbon. ...
... bursters, and comet impacts. Such threats tend to increase close to the galactic center. The outer limit is imposed by galactic chemical evolution, specifically the abundance of heavier elements, such as carbon. ...
Chapter 1 - A Modern View of the Universe
... Distance Units and Astronomy Planets: kilometers (km) (1 km ~ 0.6 mile) - i.e., Earth’s circumference is ~40,000 km Solar System: Astronomical Unit (AU) - average Earth-Sun distance = 150 million km - Venus is 0.7 AU from Sun, Mars at 1.5 AU Stars, Galaxies, Universe: light year (ly) - 9.46 trillio ...
... Distance Units and Astronomy Planets: kilometers (km) (1 km ~ 0.6 mile) - i.e., Earth’s circumference is ~40,000 km Solar System: Astronomical Unit (AU) - average Earth-Sun distance = 150 million km - Venus is 0.7 AU from Sun, Mars at 1.5 AU Stars, Galaxies, Universe: light year (ly) - 9.46 trillio ...
File
... Mars will someday have oxygen in its atmosphere. Answers should include the following points: the graphs show that Earth’s atmosphere consists of approximately 21% oxygen, whereas Mars has no oxygen in its atmosphere; Earth obtained oxygen from organisms that used liquid water and carbon dioxide in ...
... Mars will someday have oxygen in its atmosphere. Answers should include the following points: the graphs show that Earth’s atmosphere consists of approximately 21% oxygen, whereas Mars has no oxygen in its atmosphere; Earth obtained oxygen from organisms that used liquid water and carbon dioxide in ...
Why do excited at - UC Berkeley Astronomy w
... Chapter 4, Review and Discussion 11 - Why do excited atoms absorb and reemit radiation at characteristic frequencies? As described by the Bohr model, the energy levels in an atom have discrete and characteristic energies. Transitions from one energy level to another correspond to emission or absorpt ...
... Chapter 4, Review and Discussion 11 - Why do excited atoms absorb and reemit radiation at characteristic frequencies? As described by the Bohr model, the energy levels in an atom have discrete and characteristic energies. Transitions from one energy level to another correspond to emission or absorpt ...
Apparent brightness
... Color and temperature can classify stars well enough but SPECTROSCOPY gives us spectral-line radiation which is a much more detailed classification theme. The composition of these stars are the same the difference in absorption spectra is temperature. ...
... Color and temperature can classify stars well enough but SPECTROSCOPY gives us spectral-line radiation which is a much more detailed classification theme. The composition of these stars are the same the difference in absorption spectra is temperature. ...
A WALK THROUGH THE SOLAR SYSTEM
... Ancient astronomers observed points of light that appeared to move among the stars, and they called these objects planets, meaning wanderers. They were named after Roman legends. Jupiter was the king of the gods, Mars the god of war, Mercury was messenger of the gods, Venus was the god of beauty, an ...
... Ancient astronomers observed points of light that appeared to move among the stars, and they called these objects planets, meaning wanderers. They were named after Roman legends. Jupiter was the king of the gods, Mars the god of war, Mercury was messenger of the gods, Venus was the god of beauty, an ...
Chapter 2 - AstroStop
... The Copernican system for planetary motions is A) Earth-centered, with the planets, the Sun, and the stars mounted on crystal spheres, pivoted to allow the correct motions around the Earth. B) Earth-centered, with the planets moving in epicycles around the Earth. C) Sun-centered, with the planets m ...
... The Copernican system for planetary motions is A) Earth-centered, with the planets, the Sun, and the stars mounted on crystal spheres, pivoted to allow the correct motions around the Earth. B) Earth-centered, with the planets moving in epicycles around the Earth. C) Sun-centered, with the planets m ...
Detection and spectroscopy of exo-planets like Earth J.R.P. Angel
... orbital radius, mass, temperature, and atmosphere modified by the presence oflife. To sample a few dozen suitable stars we need to look out to about 10 pc distance. At this distance, a planet with an orbital radius of 1 AU will appear up to 0.1 arcsec from ...
... orbital radius, mass, temperature, and atmosphere modified by the presence oflife. To sample a few dozen suitable stars we need to look out to about 10 pc distance. At this distance, a planet with an orbital radius of 1 AU will appear up to 0.1 arcsec from ...
CHAPTER 10, Stellar Motions
... Astronomers have now detected hundreds of planetary bodies, called exoplanets, moving in orbit around other stars. Most of these are more massive than any of the Sun's planets. These planetary-like bodies are detected because of their strong gravitational interactions with their stars. However, tech ...
... Astronomers have now detected hundreds of planetary bodies, called exoplanets, moving in orbit around other stars. Most of these are more massive than any of the Sun's planets. These planetary-like bodies are detected because of their strong gravitational interactions with their stars. However, tech ...
APOM 2014 April
... This week's issue of Naturefeatures an interesting announcement by Chadwick Trujillo (Gemini Observatory) and Scott Sheppard (Carnegie Institution for Science). These two observers have found an object orbiting the Sun, designated 2012 VP113, that they first spotted 17 months ago with the 4-m Blanc ...
... This week's issue of Naturefeatures an interesting announcement by Chadwick Trujillo (Gemini Observatory) and Scott Sheppard (Carnegie Institution for Science). These two observers have found an object orbiting the Sun, designated 2012 VP113, that they first spotted 17 months ago with the 4-m Blanc ...
Life Cycle Of A Star
... that produces heat and light. There are many stars in our galaxy, and many more in others, but the star that is the most important and the one that we orbit around is called the Sun. The Sun produces heat and light for us and is also keeping all the planets in orbit. Stars aren’t just beautiful thin ...
... that produces heat and light. There are many stars in our galaxy, and many more in others, but the star that is the most important and the one that we orbit around is called the Sun. The Sun produces heat and light for us and is also keeping all the planets in orbit. Stars aren’t just beautiful thin ...
I can recognize that the moon`s phases are regular and predictable
... 21. List in order of smallest to largest : (1 being smallest, 4 being largest) ________ Neptune ________ Mercury ________ Earth ________ Jupiter 22. One which planet are we most likely to find life? Discuss with your group. Can you reach concensus, or do you all have different opinions? Explain your ...
... 21. List in order of smallest to largest : (1 being smallest, 4 being largest) ________ Neptune ________ Mercury ________ Earth ________ Jupiter 22. One which planet are we most likely to find life? Discuss with your group. Can you reach concensus, or do you all have different opinions? Explain your ...
stars
... huge explosion. • This huge explosion was known as The Big Bang. • Scientist believe that this huge explosion gave birth to the stars and planets ...
... huge explosion. • This huge explosion was known as The Big Bang. • Scientist believe that this huge explosion gave birth to the stars and planets ...
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.