Life Cycles of Stars
... … sits a White Dwarfs White dwarfs shine for billions of years before they cool completely. ...
... … sits a White Dwarfs White dwarfs shine for billions of years before they cool completely. ...
Coursework 7 File
... of the Sun is approximately T = 1.55 × 107 K. You should note that the electrostatic force attempts to repel the particles as they approach one another, and the associated electrostatic potential energy is given by Epe = −q1 q2 /(4π0 d), where d is the distance between the charges q1 and q2 . 2. Th ...
... of the Sun is approximately T = 1.55 × 107 K. You should note that the electrostatic force attempts to repel the particles as they approach one another, and the associated electrostatic potential energy is given by Epe = −q1 q2 /(4π0 d), where d is the distance between the charges q1 and q2 . 2. Th ...
The Fates of Stars Mass-Luminosity Relation: Lifetime Relation:
... 5. The star Betelgeuse has a temperature of 3000 K and a luminosity of 55000 Lsun. Can we infer its mass and/or lifetime using the mass-luminosity relation? (If so, what is it? If not, why not?) ...
... 5. The star Betelgeuse has a temperature of 3000 K and a luminosity of 55000 Lsun. Can we infer its mass and/or lifetime using the mass-luminosity relation? (If so, what is it? If not, why not?) ...
source
... 5. The star Betelgeuse has a temperature of 3000 K and a luminosity of 55000 Lsun. Can we infer its mass and/or lifetime using the mass-luminosity relation? (If so, what is it? If not, why not?) ...
... 5. The star Betelgeuse has a temperature of 3000 K and a luminosity of 55000 Lsun. Can we infer its mass and/or lifetime using the mass-luminosity relation? (If so, what is it? If not, why not?) ...
Main Sequence Stars
... Denmark, and Henry Norris Russell at Princeton University, around 1913. They plotted the locations of stars on a graph with the horizontal coordinate being spectral type (equivalent to temperature) and the vertical coordinate being absolute magnitude (equivalent to luminosity). The result, called th ...
... Denmark, and Henry Norris Russell at Princeton University, around 1913. They plotted the locations of stars on a graph with the horizontal coordinate being spectral type (equivalent to temperature) and the vertical coordinate being absolute magnitude (equivalent to luminosity). The result, called th ...
Lecture4
... million times brighter than the Sun. It has 100 times more fuel but uses it up a million times faster. It therefore lives only about 10-4 times as long as the Sun. Since the Sun lives 10 billion years, a 100 solar mass star lives only about one million years. ...
... million times brighter than the Sun. It has 100 times more fuel but uses it up a million times faster. It therefore lives only about 10-4 times as long as the Sun. Since the Sun lives 10 billion years, a 100 solar mass star lives only about one million years. ...
Problem set 1 1. The binding energy per nucleon for 56Fe is 8.8MeV
... 1. The binding energy per nucleon for 56 Fe is 8.8 MeV per nucleon. Estimate the total energy released per kilogram of matter by the sequence of reactions which fuse hydrogen to iron. 2. The main sequence of the Pleiades cluster of stars consists of stars with mass less than 6M ; the more massive s ...
... 1. The binding energy per nucleon for 56 Fe is 8.8 MeV per nucleon. Estimate the total energy released per kilogram of matter by the sequence of reactions which fuse hydrogen to iron. 2. The main sequence of the Pleiades cluster of stars consists of stars with mass less than 6M ; the more massive s ...
Name: Notes – #45 The Diverse Sizes of Stars 1. A Hertzsprung
... 6. Super giants tend to have surface temperatures cooler than the sun but emit 104 time or more energy than the Sun. Why is this true? 7. The size of the star Betelgeuse in the constellation Orion is approximately the same size as ____________’s orbit around the Sun. 8. What stars have the same temp ...
... 6. Super giants tend to have surface temperatures cooler than the sun but emit 104 time or more energy than the Sun. Why is this true? 7. The size of the star Betelgeuse in the constellation Orion is approximately the same size as ____________’s orbit around the Sun. 8. What stars have the same temp ...
Science 9: Unit 4 Review
... 11. Early astronomers suggested that planets orbited the Sun in circular paths. What is the true shape of the planets’ orbits? ...
... 11. Early astronomers suggested that planets orbited the Sun in circular paths. What is the true shape of the planets’ orbits? ...
For each statement or question, select the word or expression that
... D. Ursa Major ____ 10. An example of a winter constellation is A. Lyra B. Orion C. Cygnus D. Cassiopeia ____ 11. A light-year measures A. time B. distance C. speed D. energy ____ 12. The mass of a star can be measured by A. direct observation B. performing calculations based on other observations C. ...
... D. Ursa Major ____ 10. An example of a winter constellation is A. Lyra B. Orion C. Cygnus D. Cassiopeia ____ 11. A light-year measures A. time B. distance C. speed D. energy ____ 12. The mass of a star can be measured by A. direct observation B. performing calculations based on other observations C. ...
ASTRONOMY 1001 FALL SEMESTER 2004
... Giant Planets: structure, atmospheres, temperatures, rings, satellites, Tides, Io and tidal heating, Roche limit, disruption of satellites, rings Asteroids, origin, collisions and extinction; meteorites, types, origin, ages Comets, ion and dust tails, structure, nucleus, origin, behavior in orbit Or ...
... Giant Planets: structure, atmospheres, temperatures, rings, satellites, Tides, Io and tidal heating, Roche limit, disruption of satellites, rings Asteroids, origin, collisions and extinction; meteorites, types, origin, ages Comets, ion and dust tails, structure, nucleus, origin, behavior in orbit Or ...
Slide 1
... • There are about 100 billion galaxies in our universe. • If we plot all the visible galaxies on a graph, we will see something like this. ...
... • There are about 100 billion galaxies in our universe. • If we plot all the visible galaxies on a graph, we will see something like this. ...
Ch 28 Vocab cnp
... waves instead of steady radiation The theory holding that the universe originated from the instant expansion of an extremely small agglomeration of matter of extremely high density and temperature A spectrum that contains all colors or wavelengths A spectrum consisting of individual lines at charact ...
... waves instead of steady radiation The theory holding that the universe originated from the instant expansion of an extremely small agglomeration of matter of extremely high density and temperature A spectrum that contains all colors or wavelengths A spectrum consisting of individual lines at charact ...
The Danger of Deadly Cosmic Explosions
... • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbors are peaceful. • Bad news: when one shows signs of blowing, it is time to migrate. ...
... • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbors are peaceful. • Bad news: when one shows signs of blowing, it is time to migrate. ...
25drake3s
... The Drake Equation N=R* X fp X ne X fl X fi X fc X fL N = The number of civilizations in the galaxy R* = Number of stars in the galaxy fp = Fraction of stars with planets ne = Average number of suitable planets per star fl = Fraction of suitable planets on which life ...
... The Drake Equation N=R* X fp X ne X fl X fi X fc X fL N = The number of civilizations in the galaxy R* = Number of stars in the galaxy fp = Fraction of stars with planets ne = Average number of suitable planets per star fl = Fraction of suitable planets on which life ...
SES4U Life Cycle of a Star
... Stars will spend the majority of their lives fusing H into He When H fuel is gone, He is fused into C Massive stars are able to fuse C into heavier elements Stars slowly contract as they release energy during their life, yet their internal temperatures, densities and pressures continue to increase i ...
... Stars will spend the majority of their lives fusing H into He When H fuel is gone, He is fused into C Massive stars are able to fuse C into heavier elements Stars slowly contract as they release energy during their life, yet their internal temperatures, densities and pressures continue to increase i ...
1 - Quia
... d. mass. 6. An astronomer observes four stars, each of which is a different color. Of these stars, the ____________ star is the hottest. a. red c. yellow b. blue d. green 7. In stars, energy is produced primarily as hydrogen atoms are combined to form a. helium atoms. c. oxygen atoms. b. carbon atom ...
... d. mass. 6. An astronomer observes four stars, each of which is a different color. Of these stars, the ____________ star is the hottest. a. red c. yellow b. blue d. green 7. In stars, energy is produced primarily as hydrogen atoms are combined to form a. helium atoms. c. oxygen atoms. b. carbon atom ...
Exploration of the Universe
... Exploration of the Universe 1. What astronomical observations allow us to know the time of day, the date, direction and the timing of ocean tides? 2. What is the difference between an asterism and a constellation? 3. How would observations of stars differ from the observations of planets? 4. What is ...
... Exploration of the Universe 1. What astronomical observations allow us to know the time of day, the date, direction and the timing of ocean tides? 2. What is the difference between an asterism and a constellation? 3. How would observations of stars differ from the observations of planets? 4. What is ...
The Assembly of M31`s Halo from Dwarf Galaxy Building Blocks
... Studies of the Cosmic Microwave Background Radiation allow us to probe the properties of the Universe all the way back to Big Bang ...
... Studies of the Cosmic Microwave Background Radiation allow us to probe the properties of the Universe all the way back to Big Bang ...
Astronomy Review
... and the sunlight that is reflected from its surface. 22. A(n) __________________________ eclipse occurs when the moon passes between Earth and the sun and casts a shadow on Earth. 23. True or False A lunar eclipse occurs when the moon passes into Earth’s ...
... and the sunlight that is reflected from its surface. 22. A(n) __________________________ eclipse occurs when the moon passes between Earth and the sun and casts a shadow on Earth. 23. True or False A lunar eclipse occurs when the moon passes into Earth’s ...
123mt13a
... Manifests the Universe was once radiation dominated Indicates that matter must be present in the Universe (NO) All of the above None of the above ...
... Manifests the Universe was once radiation dominated Indicates that matter must be present in the Universe (NO) All of the above None of the above ...