Chapter 25.1: Models of our Solar System
... 2. Saturn is 10 x farther from the sun than Earth. What is the distance between Saturn and the sun in AU? In kilometers or miles? (show your work) 3. The Andromeda galaxy is 2.5 million light years away. How long does it take the light from Andromeda to reach us ? ...
... 2. Saturn is 10 x farther from the sun than Earth. What is the distance between Saturn and the sun in AU? In kilometers or miles? (show your work) 3. The Andromeda galaxy is 2.5 million light years away. How long does it take the light from Andromeda to reach us ? ...
How do stars form?
... • Since all elements heavier than H are produced by fusion in stars, • We are made of Stardust !!! ...
... • Since all elements heavier than H are produced by fusion in stars, • We are made of Stardust !!! ...
Chapter 25.1: Models of our Solar System
... 2. Saturn is 10 x farther from the sun than Earth. What is the distance between Saturn and the sun in AU? In kilometers or miles? (show your work) 3. The Andromeda galaxy is 2.5 million light years away. How long does it take the light from Andromeda to reach us ? ...
... 2. Saturn is 10 x farther from the sun than Earth. What is the distance between Saturn and the sun in AU? In kilometers or miles? (show your work) 3. The Andromeda galaxy is 2.5 million light years away. How long does it take the light from Andromeda to reach us ? ...
Our Solar System I - hrsbstaff.ednet.ns.ca
... trans-Neptunian objects are made of ice and rock. All are remnants left over from the formation of the planets. Most asteroids are found in the asteroid belt between the orbits of Mars and Jupiter, and most trans-Neptunian objects lie in the Kuiper belt outside the orbit of Neptune. Pluto is one of ...
... trans-Neptunian objects are made of ice and rock. All are remnants left over from the formation of the planets. Most asteroids are found in the asteroid belt between the orbits of Mars and Jupiter, and most trans-Neptunian objects lie in the Kuiper belt outside the orbit of Neptune. Pluto is one of ...
Chapter 25.1: Models of our Solar System
... 2. Saturn is 10 x farther from the sun than Earth. What is the distance between Saturn and the sun in AU? In kilometers or miles? (show your work) 3. The Andromeda galaxy is 2.5 million light years away. How long does it take the light from Andromeda to reach us ? ...
... 2. Saturn is 10 x farther from the sun than Earth. What is the distance between Saturn and the sun in AU? In kilometers or miles? (show your work) 3. The Andromeda galaxy is 2.5 million light years away. How long does it take the light from Andromeda to reach us ? ...
Coursework 7 File
... 2. The radius of a proton is 8.5 × 10−16 m. Assuming that hydrogen nuclei are required to physically collide with each other before undergoing fusion, comment on the answer that you obtained in part (1). 3. Calculate the temperature that is required at the centre of the Sun for close approaches betw ...
... 2. The radius of a proton is 8.5 × 10−16 m. Assuming that hydrogen nuclei are required to physically collide with each other before undergoing fusion, comment on the answer that you obtained in part (1). 3. Calculate the temperature that is required at the centre of the Sun for close approaches betw ...
Comparing Earth, Sun and Jupiter
... The energy production in main-sequence stars is due to the fusion of hydrogen into helium in the core This is the only process that can produce sufficient energy Classically fusion would not be efficient enough: requires quantum mechanics (barrier tunneling). Energy is transported to the sur ...
... The energy production in main-sequence stars is due to the fusion of hydrogen into helium in the core This is the only process that can produce sufficient energy Classically fusion would not be efficient enough: requires quantum mechanics (barrier tunneling). Energy is transported to the sur ...
Habitability of the Goldilocks planet Gliese 581g: results from
... Aims. In 2010, detailed observations have been published that seem to indicate another super-Earth planet in the system of Gliese 581, which is located in the midst of the stellar climatological habitable zone. The mass of the planet, known as Gl 581g, has been estimated to be between 3.1 and 4.3 M⊕ ...
... Aims. In 2010, detailed observations have been published that seem to indicate another super-Earth planet in the system of Gliese 581, which is located in the midst of the stellar climatological habitable zone. The mass of the planet, known as Gl 581g, has been estimated to be between 3.1 and 4.3 M⊕ ...
Our Solar System - HardemanR
... Venus and earth are similar in size Earth and Venus are very different Venus is covered by layers of clouds Venus gets very, very, hot ...
... Venus and earth are similar in size Earth and Venus are very different Venus is covered by layers of clouds Venus gets very, very, hot ...
Slides from the fourth lecture
... habitable zone is smaller than the habitable zone at a given time. ...
... habitable zone is smaller than the habitable zone at a given time. ...
ASTR100 Class 01 - University of Maryland Astronomy
... One in 10 stars so far have turned out to have planets. The others may still have smaller (Earth-sized) planets that cannot be detected using current techniques. ...
... One in 10 stars so far have turned out to have planets. The others may still have smaller (Earth-sized) planets that cannot be detected using current techniques. ...
The Solar System
... • Most scientist accept the Nebular Theory, or Nebular Model, as the best supported explanation • It explains why… – Planets are so far apart – In the same plane – orbit in the same direction ...
... • Most scientist accept the Nebular Theory, or Nebular Model, as the best supported explanation • It explains why… – Planets are so far apart – In the same plane – orbit in the same direction ...
Lecture 1 - University of Maryland Astronomy
... we only know of life on our planet. In particular, we therefore don’t know how many of the circumstances that have allowed such diversity of life on Earth are essential for life elsewhere. Must the host star be similar to ours? Does life have to develop on a planet, or could it be on the moon of a p ...
... we only know of life on our planet. In particular, we therefore don’t know how many of the circumstances that have allowed such diversity of life on Earth are essential for life elsewhere. Must the host star be similar to ours? Does life have to develop on a planet, or could it be on the moon of a p ...
Space Test: Practice Questions and Answers 1. Who discovered
... The Steady State Theory believed that the universe doesn’t change with time. However, more matter is added as it expands. It also stated that the universe had not beginning or end. In Big Bang the ...
... The Steady State Theory believed that the universe doesn’t change with time. However, more matter is added as it expands. It also stated that the universe had not beginning or end. In Big Bang the ...
Document
... 9. Explaining planetary motion with a single unified theory is the contribution of Newton’s law of gravitation. 10. Kepler’s second law states that the line segment joining the centre of the Sun and the centre of Halley should swept-up equal areas in any given period of time. Angular speed from P to ...
... 9. Explaining planetary motion with a single unified theory is the contribution of Newton’s law of gravitation. 10. Kepler’s second law states that the line segment joining the centre of the Sun and the centre of Halley should swept-up equal areas in any given period of time. Angular speed from P to ...
The Evolutionary Cycle of Stars
... may briefly outshine its entire host galaxy before fading from view over several weeks or months. The explosion expels much or all of a star's material ...
... may briefly outshine its entire host galaxy before fading from view over several weeks or months. The explosion expels much or all of a star's material ...
Transcript_Forbidden Planets
... your application to the academy for another year - and that's even after you just got those two new droids, darn it. So you find yourself staring mournfully at the setting binary suns and… hmm. Given that both of those Tatooine suns have apparent angular diameters similar to how the Sun looks in our ...
... your application to the academy for another year - and that's even after you just got those two new droids, darn it. So you find yourself staring mournfully at the setting binary suns and… hmm. Given that both of those Tatooine suns have apparent angular diameters similar to how the Sun looks in our ...
Notes on Sun-Earth-Moon (pg. 119)
... Only stars with more than 40 times the mass of the Sun form black holes when they die. This happens after a supernova. 10. Describe what happens to an average star and a massive star when each runs out of fuel. Small and medium stars become white dwarfs and eventually black dwarfs. A giant star can ...
... Only stars with more than 40 times the mass of the Sun form black holes when they die. This happens after a supernova. 10. Describe what happens to an average star and a massive star when each runs out of fuel. Small and medium stars become white dwarfs and eventually black dwarfs. A giant star can ...
AIM: What is Astronomy? Do Now:
... Where is the sun in our solar system? What percent of our Solar System’s mass is occupied by the Sun? The sun makes up about 99% of our solar systems mass. ...
... Where is the sun in our solar system? What percent of our Solar System’s mass is occupied by the Sun? The sun makes up about 99% of our solar systems mass. ...
Gr9_unit1_ch10_notes-2015
... Galileo used the scientific method and applied it to astronomy for the first time. Now that the Sun was placed at the centre of our solar system, other astronomers could work to understand the motion of the planets. Improvements in the telescope would show new and strange objects never imagined! ...
... Galileo used the scientific method and applied it to astronomy for the first time. Now that the Sun was placed at the centre of our solar system, other astronomers could work to understand the motion of the planets. Improvements in the telescope would show new and strange objects never imagined! ...
Name
... 16) Why were the first planets that were discovered around other stars much bigger than Earth and found very close to their stars? A) These planets produce a larger gravitational force on the star than an Earth-like planet far from the star B) These planets produce a smaller gravitational force on t ...
... 16) Why were the first planets that were discovered around other stars much bigger than Earth and found very close to their stars? A) These planets produce a larger gravitational force on the star than an Earth-like planet far from the star B) These planets produce a smaller gravitational force on t ...
File - Miss S. Harvey
... Mercury, Venus, Earth, and Mars; also known as the terrestrial planets. They Inner planets resemble Earth in that they are small and have densities similar to most rocks, about 5 g/cm3 the name given to the four planets closest to the Sun: Mercury, Venus, Earth, and Mars; also known as the inner pla ...
... Mercury, Venus, Earth, and Mars; also known as the terrestrial planets. They Inner planets resemble Earth in that they are small and have densities similar to most rocks, about 5 g/cm3 the name given to the four planets closest to the Sun: Mercury, Venus, Earth, and Mars; also known as the inner pla ...
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.