Stellar Evolution and the HR Diagram – Study Guide
... c. Which is brighter, the sun or a white dwarf? The Sun (but not as hot) d. Is Vega brighter than our sun? Yes e. Is Antares hotter than our sun? No, it’s a giant, class K or M 22. Stars that move off the main sequence first move to the _Giant_ region of the HR diagram. These stars are fusing __heli ...
... c. Which is brighter, the sun or a white dwarf? The Sun (but not as hot) d. Is Vega brighter than our sun? Yes e. Is Antares hotter than our sun? No, it’s a giant, class K or M 22. Stars that move off the main sequence first move to the _Giant_ region of the HR diagram. These stars are fusing __heli ...
Stars - Weebly
... Life Cycle of Stars • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it ...
... Life Cycle of Stars • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it ...
Life Cycle of Stars
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it ...
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it ...
downloadable pdf - University of Florida
... But don’t expect to find the star — which is at least 5 million times brighter than the sun — in the night sky. Dust particles between Earth and the star block out all of its visible light. Whereas the sun is located only 8.3 light minutes from Earth, the bright star is 45,000 light years away, on t ...
... But don’t expect to find the star — which is at least 5 million times brighter than the sun — in the night sky. Dust particles between Earth and the star block out all of its visible light. Whereas the sun is located only 8.3 light minutes from Earth, the bright star is 45,000 light years away, on t ...
Lecture 11 - Stars and Atomic Spectra
... wavelength of light as determining it color • However, light comes in discrete packets called photons and the energy of each photon is set by its color or wavelength • From Einstein, we known that the photon energy is inversely proportional to its wavelength ...
... wavelength of light as determining it color • However, light comes in discrete packets called photons and the energy of each photon is set by its color or wavelength • From Einstein, we known that the photon energy is inversely proportional to its wavelength ...
stars - Chatt
... • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
... • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
Universe and Solar System
... Large, many moons, rings (small particles of ice & rock) Pluto: Solid surface, denser than out planets---smaller than ...
... Large, many moons, rings (small particles of ice & rock) Pluto: Solid surface, denser than out planets---smaller than ...
THE HR DIAGRAM
... the expansion the star cools considerably. A low mass star that was a yellow or orange main sequence star evolves to a red giant during this expansion period. It is red because it is cool, and it is a giant because it has such a large radius. Similarly, a high mass blue or white main sequence star e ...
... the expansion the star cools considerably. A low mass star that was a yellow or orange main sequence star evolves to a red giant during this expansion period. It is red because it is cool, and it is a giant because it has such a large radius. Similarly, a high mass blue or white main sequence star e ...
Astronomical terms and constants
... mbol = Mbol + 5 log (d/10pc) = apparent bolometric magnitude of a star at a distance d . V = MV + 5 log (d/10pc) = apparent “visual” magnitude of a star as seen in the sky. B = MB + 5 log (d/10pc) = apparent “blue” magnitude of a star as seen in the sky. B − V = MB − MV = a difference between “visua ...
... mbol = Mbol + 5 log (d/10pc) = apparent bolometric magnitude of a star at a distance d . V = MV + 5 log (d/10pc) = apparent “visual” magnitude of a star as seen in the sky. B = MB + 5 log (d/10pc) = apparent “blue” magnitude of a star as seen in the sky. B − V = MB − MV = a difference between “visua ...
Calculating Main Sequence Lifetimes
... At the beginning of the twentieth century two astronomers, the Danish E. Hertzsprung and the American H. N. Russell, established a correlation between two important stellar parameters: brightness and color. Since ancient times, the brightness of a star is indicated by "magnitudes": 1, 2 and so on, w ...
... At the beginning of the twentieth century two astronomers, the Danish E. Hertzsprung and the American H. N. Russell, established a correlation between two important stellar parameters: brightness and color. Since ancient times, the brightness of a star is indicated by "magnitudes": 1, 2 and so on, w ...
Unit 49-59 Review
... 3. The Sun is supported against the crushing force of its own gravity by a. Magnetic forces b. Its rapid rotation c. The force exerted by escaping neutrinos d. Gas pressure 4. Which will take longer to escape from the center of the Sun a. Neutrinos b. Photons c. They will escape at approximately the ...
... 3. The Sun is supported against the crushing force of its own gravity by a. Magnetic forces b. Its rapid rotation c. The force exerted by escaping neutrinos d. Gas pressure 4. Which will take longer to escape from the center of the Sun a. Neutrinos b. Photons c. They will escape at approximately the ...
Nebula - NICADD
... Fuzzy Patch • Any source of light in the night sky that was not a point was called a nebula. ...
... Fuzzy Patch • Any source of light in the night sky that was not a point was called a nebula. ...
ď - Google Sites
... 2. Stars with surface temperatures up to 3,500 °C are red. Shade a vertical band from 2,000 °C to 3,500 °C a light red. 3. Shade other color bands as follows: Stars up to 5,000 °C are orange-red, up to 6,000 °C yellowwhite, up to 7,500 °C blue-white, and up to 40,000 °C blue. 4. Label the main seque ...
... 2. Stars with surface temperatures up to 3,500 °C are red. Shade a vertical band from 2,000 °C to 3,500 °C a light red. 3. Shade other color bands as follows: Stars up to 5,000 °C are orange-red, up to 6,000 °C yellowwhite, up to 7,500 °C blue-white, and up to 40,000 °C blue. 4. Label the main seque ...
Unit D Test Review Electromagnetic Spectrum: Which
... (what elements) What holds a star together? What are the 3 Characteristics of stars? How does a star’s temperature relate to its luminosity? Using an HR diagram: ● identify the super giant, giant, main sequence and white dwarf stars ● relate color to temperature Describe the process of nuclea ...
... (what elements) What holds a star together? What are the 3 Characteristics of stars? How does a star’s temperature relate to its luminosity? Using an HR diagram: ● identify the super giant, giant, main sequence and white dwarf stars ● relate color to temperature Describe the process of nuclea ...
Document
... The change in position of an object with respect to a distant background is called parallax. As Earth moves in its orbit, astronomers are able to observe stars from two different positions. Astronomers measure the parallax of nearby stars to determine their distance from Earth ...
... The change in position of an object with respect to a distant background is called parallax. As Earth moves in its orbit, astronomers are able to observe stars from two different positions. Astronomers measure the parallax of nearby stars to determine their distance from Earth ...
Stellar Evolution
... how a star’s life and death will proceed. • We can “weigh” stars that are in binary systems (two stars orbiting each other). Fortunately, most stars fall into this category. ...
... how a star’s life and death will proceed. • We can “weigh” stars that are in binary systems (two stars orbiting each other). Fortunately, most stars fall into this category. ...
The Life Cycle of Stars Webquest
... 4. Large, massive stars will have a _____________ main sequence stage while less massive stars will have a _________ main sequence stage. 5. What is a red giant? ...
... 4. Large, massive stars will have a _____________ main sequence stage while less massive stars will have a _________ main sequence stage. 5. What is a red giant? ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... brilliant objects in their home galaxies, visible from millions or even billions of light-years away. Supernovae are of several distinct types, as is evident from their spectra—the graphs astronomers plot showing the distribution of colors of the supernova light. One major category is core-collapse ...
... brilliant objects in their home galaxies, visible from millions or even billions of light-years away. Supernovae are of several distinct types, as is evident from their spectra—the graphs astronomers plot showing the distribution of colors of the supernova light. One major category is core-collapse ...
The Sun-Earth-Moon System
... • Composition can be determined through spectral analysis. • Different elements emit different wavelengths of light. • Spectral types are assigned letters (O, B, A, F, G, K, and M). ...
... • Composition can be determined through spectral analysis. • Different elements emit different wavelengths of light. • Spectral types are assigned letters (O, B, A, F, G, K, and M). ...
ASTRONOMY 1102 1
... Although most of this was already in the second test, it is necessary background for understanding the post main sequence evolution of more massive stars. Lightweight stars die as White Dwarfs (WD): degenerate electron pressure supports them aginst their own gravity but there is a maximum mass of 1. ...
... Although most of this was already in the second test, it is necessary background for understanding the post main sequence evolution of more massive stars. Lightweight stars die as White Dwarfs (WD): degenerate electron pressure supports them aginst their own gravity but there is a maximum mass of 1. ...
General Astrophysical Concepts: Astronomical length scales
... nucleus of a quasar is about five million times the mass of our Sun The light-emitting region of a typical quasar is comparable in size to our Solar System Quasars and AGNs can be 100 to 1000 times more luminous than our Milky Way galaxy Most galaxies have massive black holes at their centers ...
... nucleus of a quasar is about five million times the mass of our Sun The light-emitting region of a typical quasar is comparable in size to our Solar System Quasars and AGNs can be 100 to 1000 times more luminous than our Milky Way galaxy Most galaxies have massive black holes at their centers ...
Notes
... E. _________________________ holds the solar system together 1. We usually think of gravity as the ____________________ that pulls us to the Earth. 2. True definition of gravity is the attractive force between ____________. 3. The more _________ an object has the ________ its gravitational pull. a. ...
... E. _________________________ holds the solar system together 1. We usually think of gravity as the ____________________ that pulls us to the Earth. 2. True definition of gravity is the attractive force between ____________. 3. The more _________ an object has the ________ its gravitational pull. a. ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.