Problem set 1 1. The binding energy per nucleon for 56Fe is 8.8MeV
... 1. The binding energy per nucleon for 56 Fe is 8.8 MeV per nucleon. Estimate the total energy released per kilogram of matter by the sequence of reactions which fuse hydrogen to iron. 2. The main sequence of the Pleiades cluster of stars consists of stars with mass less than 6M ; the more massive s ...
... 1. The binding energy per nucleon for 56 Fe is 8.8 MeV per nucleon. Estimate the total energy released per kilogram of matter by the sequence of reactions which fuse hydrogen to iron. 2. The main sequence of the Pleiades cluster of stars consists of stars with mass less than 6M ; the more massive s ...
User`s Guide to the Sky Notes
... As you observe the night sky, your view is limited to a few thousand stars that are close enough, big enough, and bright enough for us to see from our vantage point in the galaxy. Some things you think are stars are actually distant galaxies that are so far away, the light from its billions of stars ...
... As you observe the night sky, your view is limited to a few thousand stars that are close enough, big enough, and bright enough for us to see from our vantage point in the galaxy. Some things you think are stars are actually distant galaxies that are so far away, the light from its billions of stars ...
Stars and Their Characteristics
... • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
... • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
JPL Small-Body Database Browser
... Proper Motion Proper motion was discovered by Edmund Halley. He compared the positions of bright stars that had been recorded by (Ptolemy). http://www.hwy.com.au/~sjquirk/images/film/barnard.html Barnard’s Star has the highest known proper motion of 10.3”/year. Even at that rate, Barnard’s Star wil ...
... Proper Motion Proper motion was discovered by Edmund Halley. He compared the positions of bright stars that had been recorded by (Ptolemy). http://www.hwy.com.au/~sjquirk/images/film/barnard.html Barnard’s Star has the highest known proper motion of 10.3”/year. Even at that rate, Barnard’s Star wil ...
Astronomy 360 Physics/Geology 360
... containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. Pleiades has several meanings in different cultures and traditions. The cluster is dominated by hot blue a ...
... containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. Pleiades has several meanings in different cultures and traditions. The cluster is dominated by hot blue a ...
Astronomy Galaxies & The Universe
... temperature and the color. (Big – glows blue, medium – glows yellow-orange, small – glows red) Red Giants / Red Super-giants form as H2 fuel is used up and gravity overpowers released energy, center core contracts while outer layer expands (He2 + He2 → C fusion starts in the core) -- outer layers ex ...
... temperature and the color. (Big – glows blue, medium – glows yellow-orange, small – glows red) Red Giants / Red Super-giants form as H2 fuel is used up and gravity overpowers released energy, center core contracts while outer layer expands (He2 + He2 → C fusion starts in the core) -- outer layers ex ...
Astronomy Learning Objectives and Study Questions for Chapter 12
... 1. Briefly describe the "milestones" that separate protostars from pre-main-sequence stars, and pre-main-sequence stars from main-sequence stars. 2. Briefly describe how a reflection nebula differs from an emission nebula in origin and appearance. 3. Estimate the main-sequence lifetime of a star wit ...
... 1. Briefly describe the "milestones" that separate protostars from pre-main-sequence stars, and pre-main-sequence stars from main-sequence stars. 2. Briefly describe how a reflection nebula differs from an emission nebula in origin and appearance. 3. Estimate the main-sequence lifetime of a star wit ...
Stars
... star really is. If all stars were the same distance from us, how bright would it look compared to the other stars? ...
... star really is. If all stars were the same distance from us, how bright would it look compared to the other stars? ...
STARS
... because massive stars have greater pressure on their cores, causing them to burn hydrogen more rapidly. The most massive stars last an average of about one million years, while stars of minimum mass (red dwarfs) burn their fuel very slowly and last tens to hundreds of billions of years. ...
... because massive stars have greater pressure on their cores, causing them to burn hydrogen more rapidly. The most massive stars last an average of about one million years, while stars of minimum mass (red dwarfs) burn their fuel very slowly and last tens to hundreds of billions of years. ...
Review Guide
... 26. What color are the hottest stars? 27. What color are the coolest stars? 28. Over half the stars in the universe exist as _______________________. 29. How do astronomers calculate the mass of stars? 30. What technique do astronomers use to calculate the distance to stars? 31. Do close stars or fa ...
... 26. What color are the hottest stars? 27. What color are the coolest stars? 28. Over half the stars in the universe exist as _______________________. 29. How do astronomers calculate the mass of stars? 30. What technique do astronomers use to calculate the distance to stars? 31. Do close stars or fa ...
Everything Under and Over The Stars
... happen to the solar system? There was a recent supernova called SN1993J in a star system, which is not mentioned. The powerful shockwave traveled at 44 million mph, but 5 years later it slowed down because of drag caused by particles. There has been a supernova in the Milky Way, around the 1700’s. A ...
... happen to the solar system? There was a recent supernova called SN1993J in a star system, which is not mentioned. The powerful shockwave traveled at 44 million mph, but 5 years later it slowed down because of drag caused by particles. There has been a supernova in the Milky Way, around the 1700’s. A ...
100 X size of Sun - East Penn School District
... • In the magnitude scale, lower numbers are associated with brighter stars. • Star A has an apparent magnitude = 5.4 and star B has an apparent magnitude = 2.4. Which star is brighter? • We can't actually move stars around, but we can calculate how bright a star would be if placed at the agreed-upon ...
... • In the magnitude scale, lower numbers are associated with brighter stars. • Star A has an apparent magnitude = 5.4 and star B has an apparent magnitude = 2.4. Which star is brighter? • We can't actually move stars around, but we can calculate how bright a star would be if placed at the agreed-upon ...
Document
... a. Which star is the hottest? Coolest? b. Which star looks most red? Most blue? c. Which star is the most luminous? Least luminous? d. Which star appears the brightest? Faintest? e. Which star’s spectrum shows the strongest Balmer lines of Hydrogen? ...
... a. Which star is the hottest? Coolest? b. Which star looks most red? Most blue? c. Which star is the most luminous? Least luminous? d. Which star appears the brightest? Faintest? e. Which star’s spectrum shows the strongest Balmer lines of Hydrogen? ...
Shapes in the Sky
... class. What do you see? Possibly even use it outside beneath the "real" sky. The circle is the horizon and the center of the circle is the point overhead. Whatever direction you are facing, put that direction on the chart at the bottom, closest to the ground. 4. Discuss the idea of something being “ ...
... class. What do you see? Possibly even use it outside beneath the "real" sky. The circle is the horizon and the center of the circle is the point overhead. Whatever direction you are facing, put that direction on the chart at the bottom, closest to the ground. 4. Discuss the idea of something being “ ...
Answer titese questions on a piece of loose leaf paper.
... S. On what two things does the absolute brightness of a star depend? 9. "What unit do astronomers use to measure distances between stars? • 10. Astronomers often use to measure distances to nearby stars. Qiini: Think about the thumb demo we didin class.) I I . The Hcrczspiung-Russcll diagram shows t ...
... S. On what two things does the absolute brightness of a star depend? 9. "What unit do astronomers use to measure distances between stars? • 10. Astronomers often use to measure distances to nearby stars. Qiini: Think about the thumb demo we didin class.) I I . The Hcrczspiung-Russcll diagram shows t ...
name - New York Science Teacher
... 1. Name the brightest star in the known universe. _____________________________ 2. What is its magnitude? ________________________ 3. Are the brightest stars low magnitude or high magnitude? ______________________________ 4. Make a top 10 list of the names of the 10 brightest stars in the known univ ...
... 1. Name the brightest star in the known universe. _____________________________ 2. What is its magnitude? ________________________ 3. Are the brightest stars low magnitude or high magnitude? ______________________________ 4. Make a top 10 list of the names of the 10 brightest stars in the known univ ...
Worksheet: Stars and the HR Diagram
... Background: The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their absolute magnitude, which is how bright they would appear to be if they were al the same distance away. Rather than speak of the br ...
... Background: The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their absolute magnitude, which is how bright they would appear to be if they were al the same distance away. Rather than speak of the br ...
Stellar evolution, I
... Stars, like people, spend a certain fraction of their history with negative lifetime. ...
... Stars, like people, spend a certain fraction of their history with negative lifetime. ...
Properties of Stars
... Stars • Parallax is determined by taking a picture of a star at one time, and another picture six months later; using the angle between its apparent shift, astronomers can determine how far away it is • The nearest stars have large parallax angles, while those of distant stars are too small to calcu ...
... Stars • Parallax is determined by taking a picture of a star at one time, and another picture six months later; using the angle between its apparent shift, astronomers can determine how far away it is • The nearest stars have large parallax angles, while those of distant stars are too small to calcu ...
here - Boise State University
... Click on the “Research Process” page and answer the questions below: 6. What is a star and what two gases make up a star? 7. As you watched the Youtube clip, what kinds of colors did the various stars have? 8. As you watched the Youtube clip, how big was our sun compared to the other stars? 9. Expla ...
... Click on the “Research Process” page and answer the questions below: 6. What is a star and what two gases make up a star? 7. As you watched the Youtube clip, what kinds of colors did the various stars have? 8. As you watched the Youtube clip, how big was our sun compared to the other stars? 9. Expla ...
Star Life Cycles
... Eventually Red Super Giants will explode in something called a Supernova. A supernova occurs when a star with many times the mass of the Sun runs out of usable nuclear fuel. The Crab Nebula is an example of the remnants of supernova. ...
... Eventually Red Super Giants will explode in something called a Supernova. A supernova occurs when a star with many times the mass of the Sun runs out of usable nuclear fuel. The Crab Nebula is an example of the remnants of supernova. ...
Part 2 Answer Key
... Star Clusters are multiple star systems bound together by the force of gravity. Star Clusters can be divided into two main groups. One group is called Globular Clusters. They contain many stars and gravity holds them tightly together. They swarm just outside the galaxy and form a halo or bulge. We k ...
... Star Clusters are multiple star systems bound together by the force of gravity. Star Clusters can be divided into two main groups. One group is called Globular Clusters. They contain many stars and gravity holds them tightly together. They swarm just outside the galaxy and form a halo or bulge. We k ...
Star catalogue
A star catalogue, or star catalog, is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues which have been produced for different purposes over the years, and this article covers only some of the more frequently quoted ones. Star catalogues were compiled by many different ancient peoples, including the Babylonians, Greeks, Chinese, Persians, and Arabs. Most modern catalogues are available in electronic format and can be freely downloaded from NASA's Astronomical Data Center.Completeness and accuracy is described by the weakest apparent magnitude V (largest number) and the accuracy of the positions.