Properties of Stars in general
... What does this tell us? • Most stars are seen to lie on the Main Sequence. – This is because stars spend the major part of their life in the region of the main sequence – During this period they are burning Hydrogen into Helium in their cores. – Their position in the main sequence is dependant on t ...
... What does this tell us? • Most stars are seen to lie on the Main Sequence. – This is because stars spend the major part of their life in the region of the main sequence – During this period they are burning Hydrogen into Helium in their cores. – Their position in the main sequence is dependant on t ...
types of stars, luminosity, and brightness
... intrinsic energy per sec that a star radiates and does not depend on our distance from the star. 7. Stars are classified by temperature and luminosity. 8. Supergiants are the most luminous and white dwarfs are the least luminous. 9. The main characteristic of main sequence stars is that they have hy ...
... intrinsic energy per sec that a star radiates and does not depend on our distance from the star. 7. Stars are classified by temperature and luminosity. 8. Supergiants are the most luminous and white dwarfs are the least luminous. 9. The main characteristic of main sequence stars is that they have hy ...
Space The Life of a Star
... and it is colored white. Once it cools down further, the star becomes a black dwarf. Now, the star is finished with its life cycle. High-mass stars explode after their red giant stage. If the star is massive enough, it will eventually become a black hole. Other high-mass red giants may become neutro ...
... and it is colored white. Once it cools down further, the star becomes a black dwarf. Now, the star is finished with its life cycle. High-mass stars explode after their red giant stage. If the star is massive enough, it will eventually become a black hole. Other high-mass red giants may become neutro ...
Prep Homework Solutions for HW due 10/04/10
... 1) The Algol system seems odd because the lower-mass star seems to be the more evolved star, but normally we think of binaries as stars born together and we expect higher-mass stars to evolve faster. The resolution of the paradox is presumed to be that the red giant in Algol used to be the more mass ...
... 1) The Algol system seems odd because the lower-mass star seems to be the more evolved star, but normally we think of binaries as stars born together and we expect higher-mass stars to evolve faster. The resolution of the paradox is presumed to be that the red giant in Algol used to be the more mass ...
Universe 8e Lecture Chapter 17 Nature of Stars
... more than about 4 M) undergoes an extended sequence of thermonuclear reactions in its core and shells. These include carbon fusion, neon fusion, oxygen fusion, and silicon fusion. The Deaths of the Most Massive Stars: A star with an initial mass greater than 8 M dies in a violent cataclysm in whic ...
... more than about 4 M) undergoes an extended sequence of thermonuclear reactions in its core and shells. These include carbon fusion, neon fusion, oxygen fusion, and silicon fusion. The Deaths of the Most Massive Stars: A star with an initial mass greater than 8 M dies in a violent cataclysm in whic ...
![HR DIAGRAM[1] Star Human Comparison Are all stars the same](http://s1.studyres.com/store/data/010665051_1-e4f26b4aee29f3f3aaab891d368963d6-300x300.png)
1 au d p = 1 au d
... Local luminosity function (stars with d < 20 pc) for the Milky Way measured by Kroupa, Tout & Gilmore (1993): ...
... Local luminosity function (stars with d < 20 pc) for the Milky Way measured by Kroupa, Tout & Gilmore (1993): ...
Reading the Stars
... 1. Examine color-magnitude diagrams of clusters of stars. Since a cluster of stars is a group of stars that were formed at the same time from the same cloud of gas and dust, we can learn a lot about the stars within that cluster. A color-magnitude diagram is a kind of H-R Diagram. The horizontal axi ...
... 1. Examine color-magnitude diagrams of clusters of stars. Since a cluster of stars is a group of stars that were formed at the same time from the same cloud of gas and dust, we can learn a lot about the stars within that cluster. A color-magnitude diagram is a kind of H-R Diagram. The horizontal axi ...
Motions of the Celestial Sphere
... A space ship lands on an unknown planet. The occupants notice that the stars never rise or set but appear to move in circles parallel to the horizon. Where on the planet did the space ship land? a) At the equator. b) At 45 degrees latitude. c) At one of the celestial poles. d) Cannot be determine. ...
... A space ship lands on an unknown planet. The occupants notice that the stars never rise or set but appear to move in circles parallel to the horizon. Where on the planet did the space ship land? a) At the equator. b) At 45 degrees latitude. c) At one of the celestial poles. d) Cannot be determine. ...
Chapter14- Our Galaxy - SFA Physics and Astronomy
... Cool clouds of molecular gas from out of hydrogen and other elements. ...
... Cool clouds of molecular gas from out of hydrogen and other elements. ...
Stars & Constellations
... us to spot individual stars It helps as it breaks the night sky up into manageable bits, so ...
... us to spot individual stars It helps as it breaks the night sky up into manageable bits, so ...
The Life of a Star
... it cools down further, the star becomes a black dwarf. Now, the star is finished with its life cycle. High-mass stars explode after their red giant stage. If the star is massive enough, it will eventually become a black hole. Other high-mass red giants may become neutron stars. A neutron star is usu ...
... it cools down further, the star becomes a black dwarf. Now, the star is finished with its life cycle. High-mass stars explode after their red giant stage. If the star is massive enough, it will eventually become a black hole. Other high-mass red giants may become neutron stars. A neutron star is usu ...
Astr604-Ch1
... 1.2.3 Masses and radii of stars The mass of a star can be measured only by its gravitational effect. Under certain conditions, the mass of star that is member of a binary system can calculate based on spectral line shifts. The radii of a number of stars have been found directly from measurement of t ...
... 1.2.3 Masses and radii of stars The mass of a star can be measured only by its gravitational effect. Under certain conditions, the mass of star that is member of a binary system can calculate based on spectral line shifts. The radii of a number of stars have been found directly from measurement of t ...
Test - Scioly.org
... D. Secondary Minimum E. Orbital Secondary 56. If the entire X-Axis (as strictly measured on the graph) spans 1.641 units, calculate the approximate period and frequency of the described binary system. A. Period: .876; Frequency: 1.14 B. Period: .853; Frequency: 1.17 C. Period: .821; Frequency: 1.21 ...
... D. Secondary Minimum E. Orbital Secondary 56. If the entire X-Axis (as strictly measured on the graph) spans 1.641 units, calculate the approximate period and frequency of the described binary system. A. Period: .876; Frequency: 1.14 B. Period: .853; Frequency: 1.17 C. Period: .821; Frequency: 1.21 ...
Star
... Far stranger still, if you are more massive, than neighbors in your border space, Will you collapse to become a black hole; a tunnel to some other place? Star in the heavens, are you aware, that time passes on far below? You stand aloof while generations of us, quickly come and then go But at the ti ...
... Far stranger still, if you are more massive, than neighbors in your border space, Will you collapse to become a black hole; a tunnel to some other place? Star in the heavens, are you aware, that time passes on far below? You stand aloof while generations of us, quickly come and then go But at the ti ...
Hertzsprung-Russell Diagram
... The Main Sequence At one end, the stars are big, hot and bright. Due to their color and size they are called blue giants, and the very largest are blue supergiants. At the other end they are small, cool and dim and are known as red dwarfs. The sun is right in the middle. ...
... The Main Sequence At one end, the stars are big, hot and bright. Due to their color and size they are called blue giants, and the very largest are blue supergiants. At the other end they are small, cool and dim and are known as red dwarfs. The sun is right in the middle. ...
Stars, Galaxies & Universe
... Death of a Star • Stars use up their hydrogen and expand their atmosphere. • Stars that are less than 1.4 solar masses will shrink to a white dwarf. • Stars between 1.4 -3.0 solar masses will produce a supernova and leave a neutron star. • Stars more than 3.0 solar masses will produce a supernova a ...
... Death of a Star • Stars use up their hydrogen and expand their atmosphere. • Stars that are less than 1.4 solar masses will shrink to a white dwarf. • Stars between 1.4 -3.0 solar masses will produce a supernova and leave a neutron star. • Stars more than 3.0 solar masses will produce a supernova a ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... Well, in the ongoing exoplanet version of the game “can you top this?” comes another phenomenal feat: discerning the weather on a distant exoplanet—including sensing water vapor in its atmosphere. The planet is WASP-43b, orbiting a deep orange dwarf (at spectral class K7, as orange as a star can be ...
... Well, in the ongoing exoplanet version of the game “can you top this?” comes another phenomenal feat: discerning the weather on a distant exoplanet—including sensing water vapor in its atmosphere. The planet is WASP-43b, orbiting a deep orange dwarf (at spectral class K7, as orange as a star can be ...
16. Properties of Stars
... for main sequence stars only • As one moves to the upper-left of the main sequence: • stars become more massive • stars become more luminous • stars become fewer in number ...
... for main sequence stars only • As one moves to the upper-left of the main sequence: • stars become more massive • stars become more luminous • stars become fewer in number ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.