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VNOS/VOSI-ASTR
... others and by unmanned telescopes (such as Hubble) looking for patterns or anomalies to be explained. 6. What astronomers choose to study and how they learn about the universe may be influenced by a variety of factors. How do astronomers decide what and how to investigate? Describe all the factors ...
... others and by unmanned telescopes (such as Hubble) looking for patterns or anomalies to be explained. 6. What astronomers choose to study and how they learn about the universe may be influenced by a variety of factors. How do astronomers decide what and how to investigate? Describe all the factors ...
Time From the Perspective of a Particle Physicist
... Supernovas and Core Collapse • massive stars have fusion to heavier nuclei (Neon, Silicon, Sulpher, etc) • end up with core of Iron nuclei plus 26 unbound “free” electrons for every Fe • electrons are “degenerate” as so close together provide most of the pressure resisting gravity • enormous stre ...
... Supernovas and Core Collapse • massive stars have fusion to heavier nuclei (Neon, Silicon, Sulpher, etc) • end up with core of Iron nuclei plus 26 unbound “free” electrons for every Fe • electrons are “degenerate” as so close together provide most of the pressure resisting gravity • enormous stre ...
Astronomy Activities/Demonstrations
... explosion. In this demonstration the basketball represents the outer part of the core of the star and the tennis ball represents the atmospheric layers of the star. When the core of the star implodes it contracts catastrophically. At the end of the contraction the material in the core comes together ...
... explosion. In this demonstration the basketball represents the outer part of the core of the star and the tennis ball represents the atmospheric layers of the star. When the core of the star implodes it contracts catastrophically. At the end of the contraction the material in the core comes together ...
Sky News – March 2015 The Realm of the Galaxies
... is about 10 trillion kilometres). As with virtually all clusters of galaxies, the Virgo Cluster is anchored by large, massive elliptical galaxies, in this case the galaxies M49, 60, and 87. These main bodies are surrounded by clouds of lesser galaxies. The galaxy M87 is an extremely massive galaxy t ...
... is about 10 trillion kilometres). As with virtually all clusters of galaxies, the Virgo Cluster is anchored by large, massive elliptical galaxies, in this case the galaxies M49, 60, and 87. These main bodies are surrounded by clouds of lesser galaxies. The galaxy M87 is an extremely massive galaxy t ...
Shedding Light on Relativity - DCC
... remaining fuel Core collapses to form neutron star Collapsing material bounces and blows off outer regions of star As bright as an entire galaxy for a few days ...
... remaining fuel Core collapses to form neutron star Collapsing material bounces and blows off outer regions of star As bright as an entire galaxy for a few days ...
Lesson 13 - Oregon State University
... • Population II stars (H, He, 1% heavier elements) • Population I stars (H, He, 2-5% heavier elements) Includes our sun. ...
... • Population II stars (H, He, 1% heavier elements) • Population I stars (H, He, 2-5% heavier elements) Includes our sun. ...
15-1 Notes - westscidept
... use a ________________ to separate a star’s light into a spectrum. The spectrum gives information about the ______________ and temperature of a star. When a chemical element emits ________, only some colors in the spectrum appear. These are called ____________ lines. The __________ atmosphere of a s ...
... use a ________________ to separate a star’s light into a spectrum. The spectrum gives information about the ______________ and temperature of a star. When a chemical element emits ________, only some colors in the spectrum appear. These are called ____________ lines. The __________ atmosphere of a s ...
ILÍDIO LOPES ()
... In these layers we have an intricate web of different processes occurring and interacting in the same region and in the same time scale: convection, magnetic fields and pulsations. Beneath the stellar surface (a few percent of the star’s radius) this interaction becomes even more complicated due to ...
... In these layers we have an intricate web of different processes occurring and interacting in the same region and in the same time scale: convection, magnetic fields and pulsations. Beneath the stellar surface (a few percent of the star’s radius) this interaction becomes even more complicated due to ...
Chapter 12
... The white dwarf is an object about the size of the Earth! (~0.01 solar radii, 12,000 km) The collapse is stopped due to ...
... The white dwarf is an object about the size of the Earth! (~0.01 solar radii, 12,000 km) The collapse is stopped due to ...
Earth in Space - Learning Outcomes
... When the Apollo 11 satellite took the first men to the Moon in 1969 its trajectory was very closely monitored. The satellite had a velocity of 5374 m s-1 when 26306 km from the centre of the Earth and this had dropped to 3560 m s-1 when it was 54368 km from the centre of the Earth. The rocket motors ...
... When the Apollo 11 satellite took the first men to the Moon in 1969 its trajectory was very closely monitored. The satellite had a velocity of 5374 m s-1 when 26306 km from the centre of the Earth and this had dropped to 3560 m s-1 when it was 54368 km from the centre of the Earth. The rocket motors ...
test - Scioly.org
... more luminous. Since mass removed from the companion star will be greater than the mass flowing through the disk during this event, the condition is temporary. 13) AM CVn stars differ from most other cataclysmic variables (CVs) in the abundance of hydrogen lines from their spectra. 14) Neutron Star ...
... more luminous. Since mass removed from the companion star will be greater than the mass flowing through the disk during this event, the condition is temporary. 13) AM CVn stars differ from most other cataclysmic variables (CVs) in the abundance of hydrogen lines from their spectra. 14) Neutron Star ...
Ch. 20 - Astro1010
... about the Galactic Center comes from observations at gamma ray, hard X-ray, ...
... about the Galactic Center comes from observations at gamma ray, hard X-ray, ...
(Diurnal) Motion of the Sky A star`s daily path is its diurnal circle
... autumnal/vernal equinoxes: sun is at the point(s) where the ecliptic crosses the celestial equator [figure 2-11,chichenitza.jpg, pyramid-serpent.gif ] Changing number of daily hours over course of the seasons. Tilt of Earth's rotation Axis relative to its orbit [ seasons.avi, seasons_daylight_hours. ...
... autumnal/vernal equinoxes: sun is at the point(s) where the ecliptic crosses the celestial equator [figure 2-11,chichenitza.jpg, pyramid-serpent.gif ] Changing number of daily hours over course of the seasons. Tilt of Earth's rotation Axis relative to its orbit [ seasons.avi, seasons_daylight_hours. ...
005 Astrophysics problems
... When the Apollo 11 satellite took the first men to the Moon in 1969 its trajectory was very closely monitored. The satellite had a velocity of 5374 m s-1 when 26306 km from the centre of the Earth and this had dropped to 3560 m s-1 when it was 54368 km from the centre of the Earth. The rocket motors ...
... When the Apollo 11 satellite took the first men to the Moon in 1969 its trajectory was very closely monitored. The satellite had a velocity of 5374 m s-1 when 26306 km from the centre of the Earth and this had dropped to 3560 m s-1 when it was 54368 km from the centre of the Earth. The rocket motors ...
Chapter 20
... geothermal sources of energy under the oceans or on Earth’s surface, or perhaps in vents deep underground, where the right raw materials existed. ...
... geothermal sources of energy under the oceans or on Earth’s surface, or perhaps in vents deep underground, where the right raw materials existed. ...
Astronomy - Surfin` Through the Solar System
... Key Vocabulary 1. Phases-the shape of the lighted part of the moon as it is seen from Earth 2. Gravity-a gentle pull from the center of the Earth 3. Satellite-any object in outer space which orbits another object 4. Moon-the ball of rock which orbits the Earth Procedures/Activities 1. The teacher wi ...
... Key Vocabulary 1. Phases-the shape of the lighted part of the moon as it is seen from Earth 2. Gravity-a gentle pull from the center of the Earth 3. Satellite-any object in outer space which orbits another object 4. Moon-the ball of rock which orbits the Earth Procedures/Activities 1. The teacher wi ...
Hertzsprung-Russell Diagram
... the inverse-square law would give us its distance from Earth. For a star, the trick is to find an independent measure of the luminosity without knowing the distance. The H—R diagram can provide just that. ...
... the inverse-square law would give us its distance from Earth. For a star, the trick is to find an independent measure of the luminosity without knowing the distance. The H—R diagram can provide just that. ...
Stars part 1
... Detecting two or more lines of that element in the star’s spectrum indicates that element is present in that star. The brighter the spectral line, the greater amount of that element in the star. ...
... Detecting two or more lines of that element in the star’s spectrum indicates that element is present in that star. The brighter the spectral line, the greater amount of that element in the star. ...
Image Credit: NASA,ESA, HEIC, Hubble
... Why should stars have a “life cycle”? • Only set amount of Hydrogen gas to use in nuclear fusion. – Must find some other way to counteract gravitational pressure ...
... Why should stars have a “life cycle”? • Only set amount of Hydrogen gas to use in nuclear fusion. – Must find some other way to counteract gravitational pressure ...
Astro110-01 Lecture 7 The Copernican Revolution
... Stellar parallax is the difference in direction of a celestial object as seen by an observer from two widely separated points. • The measurement of parallax is used directly to find the distance of the body from the Earth (geocentric parallax) and from the Sun (heliocentric parallax). • The two posi ...
... Stellar parallax is the difference in direction of a celestial object as seen by an observer from two widely separated points. • The measurement of parallax is used directly to find the distance of the body from the Earth (geocentric parallax) and from the Sun (heliocentric parallax). • The two posi ...
Astronomy Toolkit
... m M 5 log 10 (D) 5 0.45 – (-5.14)=5log10(D)-5 5.59/5 + 1 = log10(D) D=102.12 =131 parsecs ...
... m M 5 log 10 (D) 5 0.45 – (-5.14)=5log10(D)-5 5.59/5 + 1 = log10(D) D=102.12 =131 parsecs ...