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... Stellar Masses How massive are stars? • Kepler’s Laws – devised for the planets. • Apply to any object that orbits another object. • Kepler’s Third Law relates: – Period: “how long it takes to orbit something” – Semimajor axis: “how far you are away from that something” – Mass: “how much gravity is ...
... Stellar Masses How massive are stars? • Kepler’s Laws – devised for the planets. • Apply to any object that orbits another object. • Kepler’s Third Law relates: – Period: “how long it takes to orbit something” – Semimajor axis: “how far you are away from that something” – Mass: “how much gravity is ...
Test #3
... a) Absolute brightness., b) Distance., c) Surface temperature., d) Mass. 4. Sunspots appear dark because a) they are cooler regions, b) they are concentrations of carbon, c) their spectrum has been Doppler shifted, d) impurities in the Sun 5. When the electron and proton go from aligned spins to opp ...
... a) Absolute brightness., b) Distance., c) Surface temperature., d) Mass. 4. Sunspots appear dark because a) they are cooler regions, b) they are concentrations of carbon, c) their spectrum has been Doppler shifted, d) impurities in the Sun 5. When the electron and proton go from aligned spins to opp ...
MULTIPLE CHOICE. Choose the one alternative that best
... A) The rotation dissipates and any residual is left in small overall rotation of the star. B) The rotation rate remains the same and results in stellar rotation. C) The rotation rate increases and results in fast rotation of the star. D) The rotation rate increases and results in a disk of material ...
... A) The rotation dissipates and any residual is left in small overall rotation of the star. B) The rotation rate remains the same and results in stellar rotation. C) The rotation rate increases and results in fast rotation of the star. D) The rotation rate increases and results in a disk of material ...
Stars and Galaxies
... 80. A _______________ is a large group of stars, gas, and dust held together by gravity. 81. Our galaxy is the _______________________ Galaxy and contains about 200 billion stars. 82. Galaxies are grouped together in clusters; our cluster is the ____________________. 83. There are 3 types of galaxie ...
... 80. A _______________ is a large group of stars, gas, and dust held together by gravity. 81. Our galaxy is the _______________________ Galaxy and contains about 200 billion stars. 82. Galaxies are grouped together in clusters; our cluster is the ____________________. 83. There are 3 types of galaxie ...
Life Cycle of a Star
... giants then white dwarfs More massive stars explode into a variety of objects ...
... giants then white dwarfs More massive stars explode into a variety of objects ...
Stars Notes - Yonkers Public Schools
... more massive than the sun. • Usually explode in a supernova event ...
... more massive than the sun. • Usually explode in a supernova event ...
The Hidden Lives of Galaxies NSTA 2001
... Giants and Supergiants •These lie in the upper right of the HR diagram, meaning that they are cool but luminous (bright). •Their luminosity is high because they are very large, and so have a big surface area to radiate from. Typically they may have a radius one hundred times that of the Sun. ...
... Giants and Supergiants •These lie in the upper right of the HR diagram, meaning that they are cool but luminous (bright). •Their luminosity is high because they are very large, and so have a big surface area to radiate from. Typically they may have a radius one hundred times that of the Sun. ...
Star Classification
... Most stars, including the sun, are "main sequence stars," fueled by nuclear fusion converting hydrogen into helium. For these stars, the hotter they are, the brighter. These stars are in the most stable part of their existence; this stage generally lasts for about 5 billion years. As stars begin to ...
... Most stars, including the sun, are "main sequence stars," fueled by nuclear fusion converting hydrogen into helium. For these stars, the hotter they are, the brighter. These stars are in the most stable part of their existence; this stage generally lasts for about 5 billion years. As stars begin to ...
18-3 constellations RG
... 12. What is the name of the effect that describes how the pitch of a sound seems higher as it gets closer and lower as it gets farther away? ______________________ ...
... 12. What is the name of the effect that describes how the pitch of a sound seems higher as it gets closer and lower as it gets farther away? ______________________ ...
Life Cycles of Stars
... The End of the Line for Massive Stars • Massive stars burn a succession of elements. • Iron is the most stable element and cannot be fused further. ...
... The End of the Line for Massive Stars • Massive stars burn a succession of elements. • Iron is the most stable element and cannot be fused further. ...
The Lives of Stars
... Gravity pulls the material togethe Accumulating gas increases temperature At 10,000,000 degrees nuclear fusion begins (transformation of hydrogen into helium) ...
... Gravity pulls the material togethe Accumulating gas increases temperature At 10,000,000 degrees nuclear fusion begins (transformation of hydrogen into helium) ...
Jeopardy - University of Nebraska–Lincoln
... This is the idea that on large scales objects in the universe are pretty much the same everywhere and that there are no unique vantage points in the universe. ...
... This is the idea that on large scales objects in the universe are pretty much the same everywhere and that there are no unique vantage points in the universe. ...
Week 11 Concept Summary
... 3. Spiral Arms: The Milky Way and many other galaxies show spiral arms. These are NOT places where stars like to be. They are areas where the gas is more dense, and hence star formation occurs, and hence have bright, hot, blue stars that die quickly before they leave the arms, and hence the eye sees ...
... 3. Spiral Arms: The Milky Way and many other galaxies show spiral arms. These are NOT places where stars like to be. They are areas where the gas is more dense, and hence star formation occurs, and hence have bright, hot, blue stars that die quickly before they leave the arms, and hence the eye sees ...
Stars
... Life span of a star depends on its size and mass. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... Life span of a star depends on its size and mass. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
star
... temperature, color, and absolute brightness of a sample of stars. They are used to estimate the sizes of stars and their distances, and infer how stars change over time. If two stars a ...
... temperature, color, and absolute brightness of a sample of stars. They are used to estimate the sizes of stars and their distances, and infer how stars change over time. If two stars a ...
INV 12B MOTION WITH CHANGING SPEED DRY LAB DATA
... h. space object that causes craters i. the force that exists between any two bodies in the universe j. process that developed the three layers of Earth and Moon’s interior k. a large cloud of gas and dust in space where stars are born l. the time in the life of a star when it generates energy by fus ...
... h. space object that causes craters i. the force that exists between any two bodies in the universe j. process that developed the three layers of Earth and Moon’s interior k. a large cloud of gas and dust in space where stars are born l. the time in the life of a star when it generates energy by fus ...
Scale of Apparent Magnitudes of Celestial Objects
... The creator of the system for measuring the apparent brightness of stars is believed to be Hipparchus, who lived in Nicaea (Turkey) during the second century BCE. Hipparchus is believed by many to be the greatest of the ancient astronomers. The original scale of apparent magnitude gave the brightest ...
... The creator of the system for measuring the apparent brightness of stars is believed to be Hipparchus, who lived in Nicaea (Turkey) during the second century BCE. Hipparchus is believed by many to be the greatest of the ancient astronomers. The original scale of apparent magnitude gave the brightest ...
Chapter 11 - USD Home Pages
... 10,000 times as luminous as our sun will have a mass of about 10 M . Chap 12 will show that explains its short life of only 10 million years. b. A star with a mass of 10−1 M will have a luminosity of about 10−3 L . That’s why its life will be 1000 billion years. 44. What if? The Sun were a B-type ...
... 10,000 times as luminous as our sun will have a mass of about 10 M . Chap 12 will show that explains its short life of only 10 million years. b. A star with a mass of 10−1 M will have a luminosity of about 10−3 L . That’s why its life will be 1000 billion years. 44. What if? The Sun were a B-type ...
Teacher Subject Title Concept Context Tek/SE Verb
... science notebook: What do you see when you look up at the sky? Does the sky look the same during the day as it does at night? Other than the Moon, what do we see in the night sky? What do you know about stars? Misconceptions: students may think that all of the stars in a constellation are near each ...
... science notebook: What do you see when you look up at the sky? Does the sky look the same during the day as it does at night? Other than the Moon, what do we see in the night sky? What do you know about stars? Misconceptions: students may think that all of the stars in a constellation are near each ...
Ch 28 Vocab cnp
... The brightness of a star The measure of how bright a star would be if it were located 10 parsecs from Earth A group of millions, or even billions of stars held together by gravity A unit of measurement used to describe distances between celestial objects, equal to 3.258 light-years A large cloud of ...
... The brightness of a star The measure of how bright a star would be if it were located 10 parsecs from Earth A group of millions, or even billions of stars held together by gravity A unit of measurement used to describe distances between celestial objects, equal to 3.258 light-years A large cloud of ...
Astronomy 2
... most stars are made of hydrogen & helium (determined by temperature & composition no two are alike) ...
... most stars are made of hydrogen & helium (determined by temperature & composition no two are alike) ...
07 September: The Solar System in a Stellar Context
... Distances to stars; parsecs and light years ...
... Distances to stars; parsecs and light years ...
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.