Stellar Spectra
... spectrum with “absorption” lines. • Some stars show “emission” lines. – All stars do not have the same spectrum! • Interstellar clouds show a continuum with emission lines ...
... spectrum with “absorption” lines. • Some stars show “emission” lines. – All stars do not have the same spectrum! • Interstellar clouds show a continuum with emission lines ...
presentation source
... • Disperse their cocoon to become visible. • Typically form in clusters, dominated by light from 1-2 brightest members. GENS4001 1999-X1 ...
... • Disperse their cocoon to become visible. • Typically form in clusters, dominated by light from 1-2 brightest members. GENS4001 1999-X1 ...
Lecture Notes-PPT
... collect together by gravity. During the exchange of energy between the stars, some stars reach escape velocity from the protocluster and become runaway stars. The rest become gravitationally bound, meaning they will exist as collection orbiting each other forever. ...
... collect together by gravity. During the exchange of energy between the stars, some stars reach escape velocity from the protocluster and become runaway stars. The rest become gravitationally bound, meaning they will exist as collection orbiting each other forever. ...
Conceptual Physics
... 3. In a random sample of stars in the Sun’s neighborhood, you would expect about 90% of them: a. To be red giants b. To be white dwarfs c. To be main sequence stars d. To have just been born e. To be older than the Sun 4. A star near the top of the main sequence has a mass about: a. Twice the Sun’s ...
... 3. In a random sample of stars in the Sun’s neighborhood, you would expect about 90% of them: a. To be red giants b. To be white dwarfs c. To be main sequence stars d. To have just been born e. To be older than the Sun 4. A star near the top of the main sequence has a mass about: a. Twice the Sun’s ...
Universe 8e Lecture Chapter 17 Nature of Stars
... hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell helium fusion begins. Planetary Nebulae and White Dwarfs: Helium shell flashes in an old, moderately low-mass star produce the ...
... hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell helium fusion begins. Planetary Nebulae and White Dwarfs: Helium shell flashes in an old, moderately low-mass star produce the ...
Universe 8e Lecture Chapter 17 Nature of Stars
... hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell helium fusion begins. Planetary Nebulae and White Dwarfs: Helium shell flashes in an old, moderately low-mass star produce the ...
... hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell helium fusion begins. Planetary Nebulae and White Dwarfs: Helium shell flashes in an old, moderately low-mass star produce the ...
The Family of Stars
... but Sirius B is a white dwarf star, with a radius ~ 560 times smaller than Spica B. ...
... but Sirius B is a white dwarf star, with a radius ~ 560 times smaller than Spica B. ...
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) ...
Binary Orbits
... determine parameters e.g. period and line of sight velocities – masses – done in optical and X-ray • Fact that a large fraction of stars are found in binaries indicate stars are formed in groups through gravitational collapse of ...
... determine parameters e.g. period and line of sight velocities – masses – done in optical and X-ray • Fact that a large fraction of stars are found in binaries indicate stars are formed in groups through gravitational collapse of ...
Stars - Montville.net
... A neutron star is about 20 km in diameter and has the mass of about 1.4 times that of our Sun. This means that a neutron star is so dense that on Earth, one teaspoonful would weigh a billion tons! ...
... A neutron star is about 20 km in diameter and has the mass of about 1.4 times that of our Sun. This means that a neutron star is so dense that on Earth, one teaspoonful would weigh a billion tons! ...
Citizen Sky Epsilon Aurigae Script for Fulldome Planetariums
... Not far in the sky from Perseus, we have another character from Greek mythology: Auriga, the Charioteer. The fifth brightest star in the Charioteer is called Epsilon Aurigae. Every 27 years, it drops in brightness and mysteriously dims for nearly two years. Let’s replace our classical view of the c ...
... Not far in the sky from Perseus, we have another character from Greek mythology: Auriga, the Charioteer. The fifth brightest star in the Charioteer is called Epsilon Aurigae. Every 27 years, it drops in brightness and mysteriously dims for nearly two years. Let’s replace our classical view of the c ...
Apparent Magnitude
... off 1000 times more light than Rigel!! SO..If Spica is giving off more light, why would it appear dimmer in the sky here at Earth? ...
... off 1000 times more light than Rigel!! SO..If Spica is giving off more light, why would it appear dimmer in the sky here at Earth? ...
HR Diagram and Life of a star
... from 100-1000 times the size of the sun GIANTS- large bright stars a bit smaller and fainter than Super giants Super giants in the Red temp range tend to be in their last stages of life. They are out of hydrogen and are now fusing Helium into Carbon. White Dwarfs- are the small, dense remains of low ...
... from 100-1000 times the size of the sun GIANTS- large bright stars a bit smaller and fainter than Super giants Super giants in the Red temp range tend to be in their last stages of life. They are out of hydrogen and are now fusing Helium into Carbon. White Dwarfs- are the small, dense remains of low ...
Chapter 12
... Fusion into heavier elements (than carbon and oxygen) requires very high temperatures and occurs only in massive stars (more than 8 solar masses). These stars fuse: He C and O then C Ne, Na, ...
... Fusion into heavier elements (than carbon and oxygen) requires very high temperatures and occurs only in massive stars (more than 8 solar masses). These stars fuse: He C and O then C Ne, Na, ...
The Hertzsprung-Russell Diagram
... expect stars of the same size but different temperatures to form a diagonal line called an equal radius line. Equal Radius lines can be added to an H-R diagram ...
... expect stars of the same size but different temperatures to form a diagonal line called an equal radius line. Equal Radius lines can be added to an H-R diagram ...
Stars and Galaxies
... 4. The brightest star in the winter sky is ______________ and is located in Canis Major. 5. The _____________________ is part of Ursa Major. 6. Polaris is the _____________________ and is located in the end of the Little DipperUrsa Minor. 7. Circumpolar constellations circle around _________________ ...
... 4. The brightest star in the winter sky is ______________ and is located in Canis Major. 5. The _____________________ is part of Ursa Major. 6. Polaris is the _____________________ and is located in the end of the Little DipperUrsa Minor. 7. Circumpolar constellations circle around _________________ ...
Spectrum Analysis Activity File
... Cut out the “Pull Tab Out” card along dashed lines. Cut out the “spectroscope fingerprints” card along dashed lines. Cut out Star B, Star C, Star C1, Star C2, and Star C3 along dashed lines. Make 5 cuts along the dashed lines A, B, C, D, E on the “spectroscope fingerprints”, making sure to stop at t ...
... Cut out the “Pull Tab Out” card along dashed lines. Cut out the “spectroscope fingerprints” card along dashed lines. Cut out Star B, Star C, Star C1, Star C2, and Star C3 along dashed lines. Make 5 cuts along the dashed lines A, B, C, D, E on the “spectroscope fingerprints”, making sure to stop at t ...
Aug14Guide - East-View
... is a good description for Deneb as it is about 150 times the diameter of the Sun and twenty times the Sun’s mass making our Sun look very small indeed by comparison. The large mass of Deneb and its temperature mean that it will have a relatively short lifespan and will ...
... is a good description for Deneb as it is about 150 times the diameter of the Sun and twenty times the Sun’s mass making our Sun look very small indeed by comparison. The large mass of Deneb and its temperature mean that it will have a relatively short lifespan and will ...
Powerpoint file
... lists this as an A5 V star, but it is a g Dor variable which have spectral types F0-F2. Spectra confirm that it is F-type 1SIMBAD ...
... lists this as an A5 V star, but it is a g Dor variable which have spectral types F0-F2. Spectra confirm that it is F-type 1SIMBAD ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.