PPT file
... These stars consume their fuel faster and become red giants (they last for only 7 billion years) ...
... These stars consume their fuel faster and become red giants (they last for only 7 billion years) ...
Herzsprung-Russell Diagram
... •Determine the star’s spectral type from spectroscopy and measure the star’s apparent brightness. •Use the main sequence to get the star’s luminosity. •Use the Inverse Square Law for Brightness to get the distance to the star from the apparent luminosity and the absolute luminosity. ...
... •Determine the star’s spectral type from spectroscopy and measure the star’s apparent brightness. •Use the main sequence to get the star’s luminosity. •Use the Inverse Square Law for Brightness to get the distance to the star from the apparent luminosity and the absolute luminosity. ...
ASTRONOMY 161
... (4) The most abundant elements in the Universe are hydrogen and helium. It is fairly easy to determine which elements are present in a star. It is much harder to determine how much of each element is present. Strength of emission and absorption lines depends on temperature as well as on the element ...
... (4) The most abundant elements in the Universe are hydrogen and helium. It is fairly easy to determine which elements are present in a star. It is much harder to determine how much of each element is present. Strength of emission and absorption lines depends on temperature as well as on the element ...
Constellations
... during specific seasons This is due to earth’s rotation around sun and tilt of the earth Lyra in summer ...
... during specific seasons This is due to earth’s rotation around sun and tilt of the earth Lyra in summer ...
starevolution - Global Change Program
... supernova remnant is 6,500 light years away. Another beautiful example of a supernova remnant is the Cygnus Loop, lying about 2,500 light years away (on right). The evolution of even more massive stars produce other objects in our universe. Perhaps the most intriguing object that can form from a mas ...
... supernova remnant is 6,500 light years away. Another beautiful example of a supernova remnant is the Cygnus Loop, lying about 2,500 light years away (on right). The evolution of even more massive stars produce other objects in our universe. Perhaps the most intriguing object that can form from a mas ...
Stellar Evolution Test Answers
... 21. The most common type star in the universe is the a) brown dwarf b) white dwarf c) yellow dwarf d) red dwarf 22. A star hotter than the sun would tend to be more _________in color. a) yellow b) red c) blue 23. That which drives the life history of a star is its mass. a) true b) false 24. More mas ...
... 21. The most common type star in the universe is the a) brown dwarf b) white dwarf c) yellow dwarf d) red dwarf 22. A star hotter than the sun would tend to be more _________in color. a) yellow b) red c) blue 23. That which drives the life history of a star is its mass. a) true b) false 24. More mas ...
Stars and Galaxies
... they process it at a much faster rate. When a star’s hydrogen supply is nearly gone, the star leaves the main sequence. It begins the next stage of its life cycle, as shown in the figure below. Not all stars go through all phases shown in the figure below. Lower-mass stars, such as the Sun, do not h ...
... they process it at a much faster rate. When a star’s hydrogen supply is nearly gone, the star leaves the main sequence. It begins the next stage of its life cycle, as shown in the figure below. Not all stars go through all phases shown in the figure below. Lower-mass stars, such as the Sun, do not h ...
The_Birth_of_a_Star
... • They have no rings and few moons (if any). • They have a diameter of less than 13,000 km ...
... • They have no rings and few moons (if any). • They have a diameter of less than 13,000 km ...
Scales of the Universe
... • The Main Sequence is just a manifestation of the relationship between Mass and Luminosity: L ~ M3.5 • The more massive the star the larger its weight • The larger the weight, the larger the pressure • The larger the pressure, the higher the temperature • The higher the temperature, the more energe ...
... • The Main Sequence is just a manifestation of the relationship between Mass and Luminosity: L ~ M3.5 • The more massive the star the larger its weight • The larger the weight, the larger the pressure • The larger the pressure, the higher the temperature • The higher the temperature, the more energe ...
Stars Study Guide KEY
... 17. Describe the “Big Bang Theory”. Originally, the universe was tiny, hot, and dense. (Everything was compressed together into a small ball.) Then, an enormous explosion threw matter in all directions. (The matter eventually formed everything that we now see.) 18. What evidence is used to support t ...
... 17. Describe the “Big Bang Theory”. Originally, the universe was tiny, hot, and dense. (Everything was compressed together into a small ball.) Then, an enormous explosion threw matter in all directions. (The matter eventually formed everything that we now see.) 18. What evidence is used to support t ...
Document
... CO fundamental spectral line profile emitted by gas in gap produced by giant planet ...
... CO fundamental spectral line profile emitted by gas in gap produced by giant planet ...
Observing Information for Waddesdon, 4th October 2014
... This is an asterism of three bright stars, Deneb, Vega and Altair. It is easily visible with the unaided eye and is useful for locating other objects at this time of year. Deneb is the bright star that’s very high to the SE. It’s the brightest star in the constellation Cygnus. It is 1400 light years ...
... This is an asterism of three bright stars, Deneb, Vega and Altair. It is easily visible with the unaided eye and is useful for locating other objects at this time of year. Deneb is the bright star that’s very high to the SE. It’s the brightest star in the constellation Cygnus. It is 1400 light years ...
Astronomy
... 22. Stars that are moving away from earth will exhibit a ____ shift of their wavelengths. a. orange b. red c. yellow d. blue ...
... 22. Stars that are moving away from earth will exhibit a ____ shift of their wavelengths. a. orange b. red c. yellow d. blue ...
Life Cycle of a Star - Intervention Worksheet
... _____ The star begins to run out of fuel and expands into a red giant or red super giant. _____ Stars start out as diffused clouds of gas and dust drifting through space. A single one of these clouds is called a nebula _____ What happens next depends on the mass of the star. _____ Heat and pressure ...
... _____ The star begins to run out of fuel and expands into a red giant or red super giant. _____ Stars start out as diffused clouds of gas and dust drifting through space. A single one of these clouds is called a nebula _____ What happens next depends on the mass of the star. _____ Heat and pressure ...
5X_Measuring_galaxy_redshifts
... wavelength’, such that the Doppler shift is the same for all channels. Largescale variations are then filtered out (i.e. only spectral lines left). The spectrum is then ‘slid’ against a template prepared from a known bright galaxy or star, and a correlation function derived. The peaks in the functio ...
... wavelength’, such that the Doppler shift is the same for all channels. Largescale variations are then filtered out (i.e. only spectral lines left). The spectrum is then ‘slid’ against a template prepared from a known bright galaxy or star, and a correlation function derived. The peaks in the functio ...
The Life Cycle of a star
... • A supernova can light up the sky for weeks. • The temperature in one can reach 1,000,000,000 °C. • The supernova then either becomes a neutron star or a black hole. ...
... • A supernova can light up the sky for weeks. • The temperature in one can reach 1,000,000,000 °C. • The supernova then either becomes a neutron star or a black hole. ...
1 - Physics
... • D) black holes are not black, just misnamed 3. Why does fusion generate energy in the cores of stars? • A) The loss of mass energy releases the energy. • B) The release of gravitational energy. • C) Fusion does not generate energy. • D) The release of Kinetic Energy of colliding particles releases ...
... • D) black holes are not black, just misnamed 3. Why does fusion generate energy in the cores of stars? • A) The loss of mass energy releases the energy. • B) The release of gravitational energy. • C) Fusion does not generate energy. • D) The release of Kinetic Energy of colliding particles releases ...
The Life Cycle of a Star Webquest:
... *** Scroll back up and click on it. 6. How does a star like the sun become a Red Giant? _________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ 7. W ...
... *** Scroll back up and click on it. 6. How does a star like the sun become a Red Giant? _________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ 7. W ...
Overview IR Astronomy Explore hidden universe , Cosmic dust, Cool
... visible light is shown for comparison (red and blue) (credit: ESO). Right: The massive star Eta Carinae in X-rays, visible light and submillimetre (credit: NASA/JCMT/H.Gomez et al.) ...
... visible light is shown for comparison (red and blue) (credit: ESO). Right: The massive star Eta Carinae in X-rays, visible light and submillimetre (credit: NASA/JCMT/H.Gomez et al.) ...
1. Which of the following statements is incorrect concerning sidereal
... B. No, because black holes are always parts of binary star systems C. Yes, if it were compressed to a high enough density D. Yes, but only if a large amount of mass (at least that of the Sun) were added to it 31. Gas about to cross through the event horizon of black hole emits radiation in the form ...
... B. No, because black holes are always parts of binary star systems C. Yes, if it were compressed to a high enough density D. Yes, but only if a large amount of mass (at least that of the Sun) were added to it 31. Gas about to cross through the event horizon of black hole emits radiation in the form ...
Quiz 2 review sheet - Rice Space Institute
... deeper, changing Fe into heavier elements. But since iron is the most stable element, additional fusion takes energy not releases it, so the core collapses faster and the explosion even more incredible, spewing heavy elements into its vicinity. The outer layers start hydrogen and helium burning. Thi ...
... deeper, changing Fe into heavier elements. But since iron is the most stable element, additional fusion takes energy not releases it, so the core collapses faster and the explosion even more incredible, spewing heavy elements into its vicinity. The outer layers start hydrogen and helium burning. Thi ...
NASC 1100
... Low- and Intermediate-mass stars evolve into red giants and ultimately become white dwarfs. High-mass stars pass through a supergiant phase and end their lives in violent explosions. ...
... Low- and Intermediate-mass stars evolve into red giants and ultimately become white dwarfs. High-mass stars pass through a supergiant phase and end their lives in violent explosions. ...
What is a Star?
... km/s – 1 light year = the distance a ray of light travels in 1 year. 9.5 trillion km. Horsehead Nebula is 1,500 light years away) ...
... km/s – 1 light year = the distance a ray of light travels in 1 year. 9.5 trillion km. Horsehead Nebula is 1,500 light years away) ...
Star Life Cycle Powerpoin
... • Outer shell expands from 1 to at least 40 million miles across. ( 10 to 100 times larger than the Sun) ...
... • Outer shell expands from 1 to at least 40 million miles across. ( 10 to 100 times larger than the Sun) ...
Astronomy Homework - Life
... 36. If the remnant of a supernova has less than 3 solar masses, the remnant is called a (neutron star/black hole). 37. Neutrons stars haves sizes of about (ten/ten thousand) kilometers. 38. A pulsar is a rapidly rotating neutron star that emits (a beam of light towards the Earth/radio signals at ir ...
... 36. If the remnant of a supernova has less than 3 solar masses, the remnant is called a (neutron star/black hole). 37. Neutrons stars haves sizes of about (ten/ten thousand) kilometers. 38. A pulsar is a rapidly rotating neutron star that emits (a beam of light towards the Earth/radio signals at ir ...
H II region
An H II region is a large, low-density cloud of partially ionized gas in which star formation has recently taken place. The short-lived blue stars forged in these regions emit copious amounts of ultraviolet light that ionize the surrounding gas. H II regions—sometimes several hundred light-years across—are often associated with giant molecular clouds. The first known H II region was the Orion Nebula, which was discovered in 1610 by Nicolas-Claude Fabri de Peiresc.H II regions are named for the large amount of ionised atomic hydrogen they contain, referred to as H II, pronounced H-two by astronomers (an H I region being neutral atomic hydrogen, and H2 being molecular hydrogen). Such regions have extremely diverse shapes, because the distribution of the stars and gas inside them is irregular. They often appear clumpy and filamentary, sometimes showing bizarre shapes such as the Horsehead Nebula. H II regions may give birth to thousands of stars over a period of several million years. In the end, supernova explosions and strong stellar winds from the most massive stars in the resulting star cluster will disperse the gases of the H II region, leaving behind a cluster of birthed stars such as the Pleiades.H II regions can be seen to considerable distances in the universe, and the study of extragalactic H II regions is important in determining the distance and chemical composition of other galaxies. Spiral and irregular galaxies contain many H II regions, while elliptical galaxies are almost devoid of them. In the spiral galaxies, including the Milky Way, H II regions are concentrated in the spiral arms, while in the irregular galaxies they are distributed chaotically. Some galaxies contain huge H II regions, which may contain tens of thousands of stars. Examples include the 30 Doradus region in the Large Magellanic Cloud and NGC 604 in the Triangulum Galaxy.