Astro 2 - Red Hook Central School District
... • Some radiation l absorbed by outer layers. • Can identify elements in outer layers. • If H is present, H will absorb l = to dif between Bohr orbit levels. Form black lines. ...
... • Some radiation l absorbed by outer layers. • Can identify elements in outer layers. • If H is present, H will absorb l = to dif between Bohr orbit levels. Form black lines. ...
The Lifecycle of Stars
... may explode in a large, bright display called a Supernova Supernova occur when a massive star collapses and throws its outer layers into space. This explosion is so powerful that it can be brighter than an entire galaxy for several days!! ...
... may explode in a large, bright display called a Supernova Supernova occur when a massive star collapses and throws its outer layers into space. This explosion is so powerful that it can be brighter than an entire galaxy for several days!! ...
The Stars - Department of Physics and Astronomy
... in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
... in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
Chapter 10 Measuring the Stars: Giants, Dwarfs, and the Main
... * Some stars are supergiants and are also located near the top right (_______________) * White dwarfs are hot, faint, small stars near the bottom of the diagram • Some white dwarfs are Earth sized * Bright and near stars plotted on diagram Extending the Cosmic Distance Scale * Spectroscopic Parallax ...
... * Some stars are supergiants and are also located near the top right (_______________) * White dwarfs are hot, faint, small stars near the bottom of the diagram • Some white dwarfs are Earth sized * Bright and near stars plotted on diagram Extending the Cosmic Distance Scale * Spectroscopic Parallax ...
Variable and Binary Stars
... – 75% of O-type stars seem to have a companion – If Jupiter had been ~100 times more massive, the Sun would have a companion star ...
... – 75% of O-type stars seem to have a companion – If Jupiter had been ~100 times more massive, the Sun would have a companion star ...
Measuring the Distances to the Stars: Parallax What sets the parallax limit?
... • Must use other methods. • Must know actual distance + velocity. Mostly radio data with tangent point method ...
... • Must use other methods. • Must know actual distance + velocity. Mostly radio data with tangent point method ...
Homework, August 29, 2002 AST110-6
... star? How is surface temperature related to luminosity for main-sequence stars? (20pt) ...
... star? How is surface temperature related to luminosity for main-sequence stars? (20pt) ...
The Heliocentric Model of the Solar System
... surrounding us with little bright ‘dots’, the stars ‘fixed’ on it. The patterns of the ‘fixed stars’ appear stable in time. – we call this vault Celestial Sphere and the stars on it Fixed Stars ...
... surrounding us with little bright ‘dots’, the stars ‘fixed’ on it. The patterns of the ‘fixed stars’ appear stable in time. – we call this vault Celestial Sphere and the stars on it Fixed Stars ...
Grade 9 Science Part 3 Other Celestial Bodies
... • Superclusters: clusters of 4-25 clusters of galaxies ...
... • Superclusters: clusters of 4-25 clusters of galaxies ...
Comparing Earth, Sun and Jupiter
... The energy production in main-sequence stars is due to the fusion of hydrogen into helium in the core This is the only process that can produce sufficient energy Classically fusion would not be efficient enough: requires quantum mechanics (barrier tunneling). Energy is transported to the sur ...
... The energy production in main-sequence stars is due to the fusion of hydrogen into helium in the core This is the only process that can produce sufficient energy Classically fusion would not be efficient enough: requires quantum mechanics (barrier tunneling). Energy is transported to the sur ...
Note Taking Guide #2: Characteristics of Stars Welcome back! As
... Note Taking Guide #2: Characteristics of Stars Welcome back! As you recall, before you left for your week at Walker Creek, we completed a study (and activity) about stellar parallax. We learned that astronomers estimate the distance to stars by a number of ways—parallax being a common means— but no ...
... Note Taking Guide #2: Characteristics of Stars Welcome back! As you recall, before you left for your week at Walker Creek, we completed a study (and activity) about stellar parallax. We learned that astronomers estimate the distance to stars by a number of ways—parallax being a common means— but no ...
1 Astronomical Measurements and Quantities 2 Astronomical Objects
... method. A brief overview of different methods treated through the course to go from very nearby objects to very distant ones. [K],[BM] Galaxy Clusters: Morphological classification. Main properties. Clusters as multicomponent objects and their multivawelenght observations: optical, X-ray, gravitatio ...
... method. A brief overview of different methods treated through the course to go from very nearby objects to very distant ones. [K],[BM] Galaxy Clusters: Morphological classification. Main properties. Clusters as multicomponent objects and their multivawelenght observations: optical, X-ray, gravitatio ...
Section 27.2
... 27.2 Temperature and luminosity H-R diagrams are useful because they help astronomers categorize stars into groups: Main sequence stars, like the Sun, are in a very stable part of their life cycle. White dwarfs are hot and dim and cannot be seen without a telescope. Red giants are cool and ...
... 27.2 Temperature and luminosity H-R diagrams are useful because they help astronomers categorize stars into groups: Main sequence stars, like the Sun, are in a very stable part of their life cycle. White dwarfs are hot and dim and cannot be seen without a telescope. Red giants are cool and ...
White Dwarf star. Are
... They seem to form a picture in the sky. People use them to find their way around the sky like someone using objects to get from place to place. ...
... They seem to form a picture in the sky. People use them to find their way around the sky like someone using objects to get from place to place. ...
Level :3ASS3-4 School Year: 2009/2010 English
... Our solar system consists of an average star we call the Sun, the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. It includes also the satellites of the planets; numerous comets, asteroids, and meteoroids. The moon is the satellite rotating around the Erath and the ...
... Our solar system consists of an average star we call the Sun, the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. It includes also the satellites of the planets; numerous comets, asteroids, and meteoroids. The moon is the satellite rotating around the Erath and the ...
A search for planets around intermediate Mass Stars with the Hobby
... of the MS. K3-giant HD 240210 is very likely a multiplanet system, though more data will be required to obtain a clear orbital solution. The provisional parameters for one planet that can be fitted for give a 6.9 MJ body in a 501-day, 1.33 AU, e = 0.14 orbit that will have to be revised, when anothe ...
... of the MS. K3-giant HD 240210 is very likely a multiplanet system, though more data will be required to obtain a clear orbital solution. The provisional parameters for one planet that can be fitted for give a 6.9 MJ body in a 501-day, 1.33 AU, e = 0.14 orbit that will have to be revised, when anothe ...
Great Astronomers of the 20th Century
... galaxy clusters • Faber-Jackson relation to determine distances to galaxies – Picks up where Period-Luminosity relationship runs out of steam – Luminosity of galaxy is correlated to the width of its spectral absorption lines – Velocity dispersion of the inner few kiloparsecs of a galaxy ...
... galaxy clusters • Faber-Jackson relation to determine distances to galaxies – Picks up where Period-Luminosity relationship runs out of steam – Luminosity of galaxy is correlated to the width of its spectral absorption lines – Velocity dispersion of the inner few kiloparsecs of a galaxy ...
astronomy - Mr. Barnard
... ____3. The probable fate of our sun is (1) to become a black hole (2) to shrink to a white dwarf then eventually expand to a red giant (3) to expand as a red giant, undergo a nova outburst and end as a white dwarf (4) become hotter and expand into a blue supergiant ____4. Eventually the sun is expec ...
... ____3. The probable fate of our sun is (1) to become a black hole (2) to shrink to a white dwarf then eventually expand to a red giant (3) to expand as a red giant, undergo a nova outburst and end as a white dwarf (4) become hotter and expand into a blue supergiant ____4. Eventually the sun is expec ...
25drake3s
... The Drake Equation N=R* X fp X ne X fl X fi X fc X fL N = The number of civilizations in the galaxy R* = Number of stars in the galaxy fp = Fraction of stars with planets ne = Average number of suitable planets per star fl = Fraction of suitable planets on which life ...
... The Drake Equation N=R* X fp X ne X fl X fi X fc X fL N = The number of civilizations in the galaxy R* = Number of stars in the galaxy fp = Fraction of stars with planets ne = Average number of suitable planets per star fl = Fraction of suitable planets on which life ...
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.