Chpt12a
... can be pulled off by the other star. The material then forms an accretion disk before the material falls to the surface. If enough hydrogen gets dumped on a white dwarf star, then eventually the material will explosively ignite and we will have a nova. Once a nova explodes it is ready to repeat the ...
... can be pulled off by the other star. The material then forms an accretion disk before the material falls to the surface. If enough hydrogen gets dumped on a white dwarf star, then eventually the material will explosively ignite and we will have a nova. Once a nova explodes it is ready to repeat the ...
Today`s Powerpoint
... Further subdivision: BO - B9, GO - G9, etc. GO hotter than G9. Sun is a G2. ...
... Further subdivision: BO - B9, GO - G9, etc. GO hotter than G9. Sun is a G2. ...
Neutron Star - Perry Local Schools
... holes. – If the core that remains after a supernova has a mass of 1.4 to 3 solar masses, the remnant can become a neutron star. – If the leftover core has a mass that is greater than three solar masses, it will collapse to form a black hole. ...
... holes. – If the core that remains after a supernova has a mass of 1.4 to 3 solar masses, the remnant can become a neutron star. – If the leftover core has a mass that is greater than three solar masses, it will collapse to form a black hole. ...
Red Giants - Uplift North Hills Prep
... as gravity caused the collapse Stars are formed by a cloud of gas and dust that collapsed inward and began to spin. These clouds are called nebula. About 30 million years after the cloud collapsed, its center has reached 15 million kelvin and has become a protostar. As stars continue to go through n ...
... as gravity caused the collapse Stars are formed by a cloud of gas and dust that collapsed inward and began to spin. These clouds are called nebula. About 30 million years after the cloud collapsed, its center has reached 15 million kelvin and has become a protostar. As stars continue to go through n ...
ES High mass star life cycle plus black holes
... What is the life cycle of a low mass star (5 stages)? What is the life cycle of a high mass star? What is the heaviest element forms in the center of a high mass star? Why is supernova crucial to our existence? Where is calcium formed in the life a high mass star? What is a supernova? What are the 2 ...
... What is the life cycle of a low mass star (5 stages)? What is the life cycle of a high mass star? What is the heaviest element forms in the center of a high mass star? Why is supernova crucial to our existence? Where is calcium formed in the life a high mass star? What is a supernova? What are the 2 ...
formation of stars
... The great nebulae are clouds of gas and dust in space of which most are invisible. A diffuse nebulae is made visible from the light of a nearby bright star. [Great Nebula in the constellation Orion.] Other nebulae, called dark nebula show up as a dark patch against the more distant stars. [The Horse ...
... The great nebulae are clouds of gas and dust in space of which most are invisible. A diffuse nebulae is made visible from the light of a nearby bright star. [Great Nebula in the constellation Orion.] Other nebulae, called dark nebula show up as a dark patch against the more distant stars. [The Horse ...
Barium Stars Observed with the Coude Echelle Spectrometer
... pulses occurring in the helium shell of stars with two active shells provide the mixing and thermal processing required to supply the neutrons. Stars in this stage 01 evolution are expected to be luminous cool giants and supergiants, with effective temperatures weil below 3,500 K and luminosities 01 ...
... pulses occurring in the helium shell of stars with two active shells provide the mixing and thermal processing required to supply the neutrons. Stars in this stage 01 evolution are expected to be luminous cool giants and supergiants, with effective temperatures weil below 3,500 K and luminosities 01 ...
Sample Exam 3
... 5) Up through the start of the 20th century, astronomers like Herschel and Kapteyn used counts of stars in the Milky Way to estimate the structure of the star system in which we live. From this evidence they concluded that A) the Sun was near the middle of a disk-like system of millions of stars. B) ...
... 5) Up through the start of the 20th century, astronomers like Herschel and Kapteyn used counts of stars in the Milky Way to estimate the structure of the star system in which we live. From this evidence they concluded that A) the Sun was near the middle of a disk-like system of millions of stars. B) ...
and Concept Self-test (1,2,3,5,6,7,8,9)
... 1. Parallax is used to measure the distances in stars by measuring the arc angle an object appears to move as the Earth orbits the Sun. This angle can then be converted to Parsecs. 2. A parsec (Pc) is the distance an object is if it appears to move one arc second as the Earth moves 2 AU’s from one s ...
... 1. Parallax is used to measure the distances in stars by measuring the arc angle an object appears to move as the Earth orbits the Sun. This angle can then be converted to Parsecs. 2. A parsec (Pc) is the distance an object is if it appears to move one arc second as the Earth moves 2 AU’s from one s ...
stars & galaxies
... than other galaxies. Could be formed from the collision of two different galaxies. Stars are of low mass and cannot organize into a pattern. Irregular galaxies are unevenly ...
... than other galaxies. Could be formed from the collision of two different galaxies. Stars are of low mass and cannot organize into a pattern. Irregular galaxies are unevenly ...
Neutron Stars and Black Holes - School
... Before any evidence of black holes existed they were known to be a theoretical possibility. After a supernova explosion there remains an incredibly dense neutron star. If the mass of the Sun from which it originated was great enough then the neutron star could be a black hole. The gravitational fiel ...
... Before any evidence of black holes existed they were known to be a theoretical possibility. After a supernova explosion there remains an incredibly dense neutron star. If the mass of the Sun from which it originated was great enough then the neutron star could be a black hole. The gravitational fiel ...
Star Jeopardy "Review #1
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
Constituents of the Milky Way
... cloud of gas and dust enriched by those metals can then form a new generation of stars. As a result, a star born more recently has a higher fraction of metals, or a higher metallicity, than a star born long ago. So we can estimate the ages of stars by measuring ...
... cloud of gas and dust enriched by those metals can then form a new generation of stars. As a result, a star born more recently has a higher fraction of metals, or a higher metallicity, than a star born long ago. So we can estimate the ages of stars by measuring ...
Lab 1: Introduction to Astronomy
... 11: Allows us to view celestial objects larger 13: “Father” whose only child is the Heliocentric model 15: The celestial equator’s latitude 16: Our Sun’s real name 19: Type of telescope that uses mirrors to direct light through reflection 21: Part of the telescope through which celestial objects are ...
... 11: Allows us to view celestial objects larger 13: “Father” whose only child is the Heliocentric model 15: The celestial equator’s latitude 16: Our Sun’s real name 19: Type of telescope that uses mirrors to direct light through reflection 21: Part of the telescope through which celestial objects are ...
Nuclear fusion in stars
... • If R increases by a factor of 4, r does the same by factor of 8. This means that a collapsing cloud can fragment ! into smaller collapsing clouds. • This process ends with star formation or when rotational speed becomes too high (conservation of angular momentum) • Hierarchical collapse can produc ...
... • If R increases by a factor of 4, r does the same by factor of 8. This means that a collapsing cloud can fragment ! into smaller collapsing clouds. • This process ends with star formation or when rotational speed becomes too high (conservation of angular momentum) • Hierarchical collapse can produc ...
The Sky
... • The stars are scattered randomly on this sphere (except for the Milky Way). • In this randomness, we see pictures: Constellations. ...
... • The stars are scattered randomly on this sphere (except for the Milky Way). • In this randomness, we see pictures: Constellations. ...
Solar System where_are_we
... Earth travels 595 million miles around the sun each year. Its orbit is an ellipse, which is a long oval shape. As it travels around the sun, it also rotates around its own axis. So, even though the sun appears to be moving across the sky, it is our earth that is turning and moving ...
... Earth travels 595 million miles around the sun each year. Its orbit is an ellipse, which is a long oval shape. As it travels around the sun, it also rotates around its own axis. So, even though the sun appears to be moving across the sky, it is our earth that is turning and moving ...
Why is there a main sequence?
... become giant stars. Here you will answer four important questions: • Why is there a main sequence? • Why is there a relationship between the masses and luminosities of main-sequence stars? • How does a star change as it exhausts its hydrogen fusion fuel? • What is the evidence that stars really do e ...
... become giant stars. Here you will answer four important questions: • Why is there a main sequence? • Why is there a relationship between the masses and luminosities of main-sequence stars? • How does a star change as it exhausts its hydrogen fusion fuel? • What is the evidence that stars really do e ...
10438 starlight - The Described and Captioned Media Program
... star cluster-A group of stars near each other in space and resembling each other in certain characteristics that suggest a common origin for the group. sun-The celestial body around which Earth and other planets revolve, from which they receive heat and light. It has a mean distance from Earth of 93 ...
... star cluster-A group of stars near each other in space and resembling each other in certain characteristics that suggest a common origin for the group. sun-The celestial body around which Earth and other planets revolve, from which they receive heat and light. It has a mean distance from Earth of 93 ...
HR Diagram Lab
... 1. What would you tell someone who thinks that all stars are very similar (be sure to discuss temperature and brightness)? 2. How does our sun compare to other stars in brightness and temperature? 3. Are the stars scattered randomly on the graph, or is there a pattern? Explain. 4. Would you expect h ...
... 1. What would you tell someone who thinks that all stars are very similar (be sure to discuss temperature and brightness)? 2. How does our sun compare to other stars in brightness and temperature? 3. Are the stars scattered randomly on the graph, or is there a pattern? Explain. 4. Would you expect h ...
Lesson 3 Power Notes Outline
... When nearly all the hydrogen in a star’s core has fused into helium, the core contracts under its own gravity and its temperature rises. ...
... When nearly all the hydrogen in a star’s core has fused into helium, the core contracts under its own gravity and its temperature rises. ...
Things to know: This meant as a guide to what you should know. I
... What unusual distortions in time and space are experienced when one moves at speeds near the speed of light? What is gravity in Einstein’s general theory of relativity? What is all matter made of (what are leptons, baryons, quarks)? What is the evidence for the big bang? What is the cosmic microwave ...
... What unusual distortions in time and space are experienced when one moves at speeds near the speed of light? What is gravity in Einstein’s general theory of relativity? What is all matter made of (what are leptons, baryons, quarks)? What is the evidence for the big bang? What is the cosmic microwave ...
giant molecular clouds
... Globules (“EGGs”): Newly forming stars exposed by the ionizing radiation from nearby massive stars ...
... Globules (“EGGs”): Newly forming stars exposed by the ionizing radiation from nearby massive stars ...
Astro twopages
... Pluto is the edge of the planets we accept in the solar system. It would take 4.5 hours for light to reach Pluto and twice that time to have a round trip. As we explore the solar system with robots, this time lag has to be taken into account. The next star is approximately 4 light years away. In the ...
... Pluto is the edge of the planets we accept in the solar system. It would take 4.5 hours for light to reach Pluto and twice that time to have a round trip. As we explore the solar system with robots, this time lag has to be taken into account. The next star is approximately 4 light years away. In the ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.