Observational Astronomy - Spring 2014 Homework 7
... 3. What process powers the stars? What element does the Sun consume for fuel and what element is produced in this reaction? • The stars are powered by nuclear fusion. • The sun is primarily powered by fusing hydrogen into helium. 4. A star with 10 times the mass of the Sun has 10 times as much nucle ...
... 3. What process powers the stars? What element does the Sun consume for fuel and what element is produced in this reaction? • The stars are powered by nuclear fusion. • The sun is primarily powered by fusing hydrogen into helium. 4. A star with 10 times the mass of the Sun has 10 times as much nucle ...
Constellation Markers - The Roger Sherman Society
... Six days later, the Magnetosphere (solar wind) reversed and the data is missing – March 12, ...
... Six days later, the Magnetosphere (solar wind) reversed and the data is missing – March 12, ...
hw5
... A creature’s likelyhood of surviving changes in their environment over time depends on how quickly they can adapt to those changes. An intelligent creature can adapt very quickly to changes through use of tools and rational behavior. p. 370 RQ# 3 How can astronomers use variable stars to find distan ...
... A creature’s likelyhood of surviving changes in their environment over time depends on how quickly they can adapt to those changes. An intelligent creature can adapt very quickly to changes through use of tools and rational behavior. p. 370 RQ# 3 How can astronomers use variable stars to find distan ...
Astronomy Teaching that Focuses on Learning Subtitled
... 8. If two stars have the same spectral class, do they necessarily have the same temperature? The Stefan-Boltzmann Law tells us about how the luminosity of a star is related to its temperature and size. It reads as follows: L Area T 4 ...
... 8. If two stars have the same spectral class, do they necessarily have the same temperature? The Stefan-Boltzmann Law tells us about how the luminosity of a star is related to its temperature and size. It reads as follows: L Area T 4 ...
Stars in our Galaxy
... This band is called the main sequence. It contains hot, blue, bright stars in the upper left and cool, red, dim stars in the lower right. • 90% of all stars are main sequence stars but there are a few that don’t fall into this “line” what are they? • White dwarfs are stars that are dying. They have ...
... This band is called the main sequence. It contains hot, blue, bright stars in the upper left and cool, red, dim stars in the lower right. • 90% of all stars are main sequence stars but there are a few that don’t fall into this “line” what are they? • White dwarfs are stars that are dying. They have ...
Astronomy Study Guide
... Apparent brightness—the brightness of a star as seen from Earth Absolute brightness—a star’s brightness as if it were a standard distance from Earth Constellation—an imaginary pattern of stars (example—Orion) Hertzsprung - Russell diagram (H-R diagram)—a graph of stars showing surface temperature on ...
... Apparent brightness—the brightness of a star as seen from Earth Absolute brightness—a star’s brightness as if it were a standard distance from Earth Constellation—an imaginary pattern of stars (example—Orion) Hertzsprung - Russell diagram (H-R diagram)—a graph of stars showing surface temperature on ...
Exam2 Review Slides
... its temperature and diameter The Hertzsprung-Russell diagram lets us look for trends in this relationship. ...
... its temperature and diameter The Hertzsprung-Russell diagram lets us look for trends in this relationship. ...
Student 4
... Barnard's Star is a very low-mass red dwarf star about six light-years away from Earth in the constellation of Ophiuchus. Barnard's Star is the fourth-closest known individual star to the Sun, after the three components of the Alpha Centauri system. Despite its proximity, Barnard's Star, at a dim ap ...
... Barnard's Star is a very low-mass red dwarf star about six light-years away from Earth in the constellation of Ophiuchus. Barnard's Star is the fourth-closest known individual star to the Sun, after the three components of the Alpha Centauri system. Despite its proximity, Barnard's Star, at a dim ap ...
The Electromagnetic Spectrum
... • Short wave radiation is produced by objects with…? • What is an emission spectrum? • What is an absorption spectrum? • Why do we know that Hydrogen and Helium are found on most stars? • How do we know that the Sun’s surface temperature is 5800 °K? • What is the Doppler Effect? What does it tell us ...
... • Short wave radiation is produced by objects with…? • What is an emission spectrum? • What is an absorption spectrum? • Why do we know that Hydrogen and Helium are found on most stars? • How do we know that the Sun’s surface temperature is 5800 °K? • What is the Doppler Effect? What does it tell us ...
Galaxy and Beyond
... the Sun (can range from 30 - 50 Aus) Astronomical Unit (AU) - is distance b/w Earth & Sun (about 93 million miles) ...
... the Sun (can range from 30 - 50 Aus) Astronomical Unit (AU) - is distance b/w Earth & Sun (about 93 million miles) ...
Astronomy 360 - indstate.edu
... used the length of a shadow at two different locations to determine the Earth’s size. You need to collaborate with someone at least several hundred miles north or south of you. Set up a vertical stick and a piece of paper beside the stick. Record the shadow at two different locations. You must know ...
... used the length of a shadow at two different locations to determine the Earth’s size. You need to collaborate with someone at least several hundred miles north or south of you. Set up a vertical stick and a piece of paper beside the stick. Record the shadow at two different locations. You must know ...
Introduction to the Earth
... Arno Penzias and Robert Wilson were trying to make observations of radio emissions from a distant supernova and then hoped to make a map of radio emissions from the Milky Way. They adapted a radio dish previously used for communication satellites. They were startled to find that no matter where they ...
... Arno Penzias and Robert Wilson were trying to make observations of radio emissions from a distant supernova and then hoped to make a map of radio emissions from the Milky Way. They adapted a radio dish previously used for communication satellites. They were startled to find that no matter where they ...
Objectives
... – very hot but not luminous because of their small size – shine for billions of years before they cool completely and become a black dwarf. Sirius B is a white dwarf star shown next to a much brighter companion star, Sirius A. ...
... – very hot but not luminous because of their small size – shine for billions of years before they cool completely and become a black dwarf. Sirius B is a white dwarf star shown next to a much brighter companion star, Sirius A. ...
Slide 1
... Formation of the Solar System Nebular Theory = sun and planets formed from a rotating disk of dust and gases. Planetesimals = small, irregular-shaped bodies that collided and clumped together to form the planets. ...
... Formation of the Solar System Nebular Theory = sun and planets formed from a rotating disk of dust and gases. Planetesimals = small, irregular-shaped bodies that collided and clumped together to form the planets. ...
Life Cycle of a Star - Intervention Worksheet
... Black hole Supernova White dwarf Planetary nebula Main Sequence Black dwarf ...
... Black hole Supernova White dwarf Planetary nebula Main Sequence Black dwarf ...
BV Color Index and Temperature - The University of Texas at Dallas
... • B-V color index way of quantifying this - determining spectral class using two different filters Ø one a blue (B) filter that only lets a narrow range of colors or wavelengths through centered on the blue colors, Ø and a “visual” (V) filter that only lets the wavelengths close to the ...
... • B-V color index way of quantifying this - determining spectral class using two different filters Ø one a blue (B) filter that only lets a narrow range of colors or wavelengths through centered on the blue colors, Ø and a “visual” (V) filter that only lets the wavelengths close to the ...
That is an irrelevant question, Ms Gajda, there was no
... 3. Helium is produced starting at 3 minutes 4. Atoms are formed after 500,000 years 5. Gravity begins forming stars and galaxies after 1 billion years 9. What existed before the Big Bang? What was created at the Big Bang? That is an irrelevant question, Ms Gajda, there was no time before the Big Ban ...
... 3. Helium is produced starting at 3 minutes 4. Atoms are formed after 500,000 years 5. Gravity begins forming stars and galaxies after 1 billion years 9. What existed before the Big Bang? What was created at the Big Bang? That is an irrelevant question, Ms Gajda, there was no time before the Big Ban ...
Life on the Main Sequence + Expansion to Red Giant
... Mmax ~ 100 solar masses a) More massive clouds fragment into smaller pieces during star formation. ...
... Mmax ~ 100 solar masses a) More massive clouds fragment into smaller pieces during star formation. ...
Stars and Light
... • The magnitude of a star gives it brightness or flux when observed from Earth. • To talk about the properties of star, independent of how far they happen to be from Earth, we use “absolute magnitude”. • Absolute magnitude is the magnitude that a star would have viewed from a distance of 10 parsecs. ...
... • The magnitude of a star gives it brightness or flux when observed from Earth. • To talk about the properties of star, independent of how far they happen to be from Earth, we use “absolute magnitude”. • Absolute magnitude is the magnitude that a star would have viewed from a distance of 10 parsecs. ...
![Lectures 10 & 11 powerpoint (stellar formation) [movie below]](http://s1.studyres.com/store/data/008083226_1-fec717da713794a7feea61d4eec0ceb1-300x300.png)
Lectures 10 & 11 powerpoint (stellar formation) [movie below]
... low density) Multiple components (several clouds of ISM with different radial velocities) ...
... low density) Multiple components (several clouds of ISM with different radial velocities) ...
Integrative Studies 410 Our Place in the Universe
... layers, including the heavy elements – a supernova • A million times brighter than a nova!! • The actual explosion takes less than a second ...
... layers, including the heavy elements – a supernova • A million times brighter than a nova!! • The actual explosion takes less than a second ...
P2_5 The Apparent Magnitude of α Orionis Supernova
... The star α Orionis (Betelgeuse) is to become a type II supernova at the end of its life. Some have postulated that this supernova will be bright enough that it will be visible during the day. Betelgeuse will have an apparent magnitude of around -8.7, brighter than Venus, which can be seen when the s ...
... The star α Orionis (Betelgeuse) is to become a type II supernova at the end of its life. Some have postulated that this supernova will be bright enough that it will be visible during the day. Betelgeuse will have an apparent magnitude of around -8.7, brighter than Venus, which can be seen when the s ...
The Search for Earth-Like Planets
... Premise: If there is intelligent life “out there”, it probably is similar to life as we know it on Earth. ...
... Premise: If there is intelligent life “out there”, it probably is similar to life as we know it on Earth. ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.