![Characteristics of stars powerpoint](http://s1.studyres.com/store/data/008081294_1-7f2aae13040a62eb01e687cbf7d366e3-300x300.png)
Characteristics of stars powerpoint
... • The brightness a star would have if it was a standard distance from Earth • This requires an astronomer to determine both the apparent magnitude and distance from Earth • Ex: calculating absolute magnitude by making all stars 1 light-year away ...
... • The brightness a star would have if it was a standard distance from Earth • This requires an astronomer to determine both the apparent magnitude and distance from Earth • Ex: calculating absolute magnitude by making all stars 1 light-year away ...
Light from stars part II
... • Stars classified by giving a number 1 - 6 • Brightest stars are class 1 • Dimmest stars visible to naked eye are class 6 • Class 1 is twice as bright as class 2, class 2 is twice as bright as class 3, and so on. • So class 1 is 26 = 64 times as bright as class 6 ...
... • Stars classified by giving a number 1 - 6 • Brightest stars are class 1 • Dimmest stars visible to naked eye are class 6 • Class 1 is twice as bright as class 2, class 2 is twice as bright as class 3, and so on. • So class 1 is 26 = 64 times as bright as class 6 ...
Light as a Wave (1) Distances to Stars
... intrinsic brightness or luminosity (L) and inversely proportional to the square of the distance (d): ...
... intrinsic brightness or luminosity (L) and inversely proportional to the square of the distance (d): ...
Astronomical Distance Determination
... Since launch Gaia has made 272 billion precision astrometric measurements, but to fulfill its mission it will need many more. So far reliable parallaxes have been determined for two million stars. First catalogue release this summer. ...
... Since launch Gaia has made 272 billion precision astrometric measurements, but to fulfill its mission it will need many more. So far reliable parallaxes have been determined for two million stars. First catalogue release this summer. ...
Stellar Distances - Red Hook Central School District
... • Where did this period-luminosity relation come from? When Cepheid’s are close enough to use stellar parallax to measure distance, then the absolute magnitude can be found from: ...
... • Where did this period-luminosity relation come from? When Cepheid’s are close enough to use stellar parallax to measure distance, then the absolute magnitude can be found from: ...
Introduction Cosmology Cosmetics Cosmetology ..Greek words
... Scientific Cosmology attempts to account for the origin and evolution of the Universe on the basis of laws of Physics. Large scale (galaxies) and small scale (elementary particles, e.g., electrons) Large scale => gravity Small scale => laws of quantum mechanics What is “scientific”? ...
... Scientific Cosmology attempts to account for the origin and evolution of the Universe on the basis of laws of Physics. Large scale (galaxies) and small scale (elementary particles, e.g., electrons) Large scale => gravity Small scale => laws of quantum mechanics What is “scientific”? ...
observed
... “The scale of the universe” Shapley argued that “spiral nebulae” (like Andromeda) were just nearby gas clouds inside our own Galaxy. Curtis believed them to be galaxies in their own right lying far outside our own Galaxy. ...
... “The scale of the universe” Shapley argued that “spiral nebulae” (like Andromeda) were just nearby gas clouds inside our own Galaxy. Curtis believed them to be galaxies in their own right lying far outside our own Galaxy. ...
Bill Nye: Outer Space
... 1. _______ is the fastest thing in the universe. It travels ___________ km/sec. 2. The closest star to our sun is 4.3 _________________ away. 3. ________________________ is the distance that light travels in a year. 4. __________ trillion km = 1 light year 5. True or False: All the stars you can see ...
... 1. _______ is the fastest thing in the universe. It travels ___________ km/sec. 2. The closest star to our sun is 4.3 _________________ away. 3. ________________________ is the distance that light travels in a year. 4. __________ trillion km = 1 light year 5. True or False: All the stars you can see ...
Distances and Sizes - University of Iowa Astrophysics
... between the two telescopes (if both of them have to be on Earth – no spacecraft). ...
... between the two telescopes (if both of them have to be on Earth – no spacecraft). ...
Lecture 1 - SUNY Oswego
... Aspects/Theory Lecture II: Stellar Pulsation Lecture III: Stellar Evolution Lecture IV: Pulsation Modeling Lecture V: Applications: The distance and age scales. ...
... Aspects/Theory Lecture II: Stellar Pulsation Lecture III: Stellar Evolution Lecture IV: Pulsation Modeling Lecture V: Applications: The distance and age scales. ...
Astronomy 1 Study Guide Key 16
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
Date - Studyladder
... in kilometres or miles. The numbers would be too big. Instead, we measure distances by how far light can travel in a year. Light travels at about 300 000 km per second. This means that it can travel about 9 460 528 400 000 km in one year. The estimated distance from the Sun to the furthest planet in ...
... in kilometres or miles. The numbers would be too big. Instead, we measure distances by how far light can travel in a year. Light travels at about 300 000 km per second. This means that it can travel about 9 460 528 400 000 km in one year. The estimated distance from the Sun to the furthest planet in ...
chap17_s05_probs
... Given a star with an apparent magnitude of 10.0, and an absolute magnitude of 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, ...
... Given a star with an apparent magnitude of 10.0, and an absolute magnitude of 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, ...
Type 1a Supernovae - RanelaghALevelPhysics
... inside the core increase enough to allow the fusion of carbon to take place. ...
... inside the core increase enough to allow the fusion of carbon to take place. ...
chap17_f04_probs
... Given a star with an apparent magnitude of 10.0, and an absolute magnitude of 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, ...
... Given a star with an apparent magnitude of 10.0, and an absolute magnitude of 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, ...
Lecture1
... Since the Earth is ~8 kpc from the Galactic centre it is clear that this method is only useful for stars in the immediate solar neighbourhood. ...
... Since the Earth is ~8 kpc from the Galactic centre it is clear that this method is only useful for stars in the immediate solar neighbourhood. ...
LghtYr
... The distances between stars are vast on our scale of things. Using a normal unit such as a mile or a kilometer would be too cumbersome because of all the zeros required. As a result, astronomers use the fastest thing in nature, light, to provide the unit of distance between stars. It is called the “ ...
... The distances between stars are vast on our scale of things. Using a normal unit such as a mile or a kilometer would be too cumbersome because of all the zeros required. As a result, astronomers use the fastest thing in nature, light, to provide the unit of distance between stars. It is called the “ ...
Chapters 16,17
... The motions of galaxies in clusters, together with the universal law of gravity, indicate that there exists very much more matter than the luminous matter in those regions. Also, in some cases gravitational lensing by a galactic cluster provides evidence for dark matter. ...
... The motions of galaxies in clusters, together with the universal law of gravity, indicate that there exists very much more matter than the luminous matter in those regions. Also, in some cases gravitational lensing by a galactic cluster provides evidence for dark matter. ...
SHELL H II REGIONS IN NGC 6334
... • Approach that takes advantage of old archival data that can be compared with more recent observations. • Addresses key parameters in astronomy such as mass, distance, and age. ...
... • Approach that takes advantage of old archival data that can be compared with more recent observations. • Addresses key parameters in astronomy such as mass, distance, and age. ...
PH142 - Mohawk Valley Community College
... At the conclusion of the course, the students will be able to: 1. Describe the physical nature of the Sun. 2. Describe the physical processes on the Sun. 3. Explain the sequence of events during a solar eclipse--partial, annular, total. 4. Demonstrate an understanding of the methods of distance meas ...
... At the conclusion of the course, the students will be able to: 1. Describe the physical nature of the Sun. 2. Describe the physical processes on the Sun. 3. Explain the sequence of events during a solar eclipse--partial, annular, total. 4. Demonstrate an understanding of the methods of distance meas ...
Characteristics of stars
... • Neutron stars are about 20KM (smallest) • Giant stars and super giant stars. If our sun were a super giant star it would fill our solar system as far out as Jupiter. ...
... • Neutron stars are about 20KM (smallest) • Giant stars and super giant stars. If our sun were a super giant star it would fill our solar system as far out as Jupiter. ...
The Universe Constellations
... 13. What percent of stars belong to a multiple star system? 14. The constellation of Centaurus in the Southern Hemisphere contains Omega Centauri, the largest globular star cluster in the Milky Way Galaxy. Describe how globular clusters may have formed. ...
... 13. What percent of stars belong to a multiple star system? 14. The constellation of Centaurus in the Southern Hemisphere contains Omega Centauri, the largest globular star cluster in the Milky Way Galaxy. Describe how globular clusters may have formed. ...
Measuring the Stars
... Space is Big. “Space is big. Really big. You just won't believe how vastly hugely mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space…” To be fair though, when confronted by the sheer enormity of the distances between the s ...
... Space is Big. “Space is big. Really big. You just won't believe how vastly hugely mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space…” To be fair though, when confronted by the sheer enormity of the distances between the s ...
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A real direct distance measurement of an astronomical object is possible only for those objects that are ""close enough"" (within about a thousand parsecs) to Earth. The techniques for determining distances to more distant objects are all based on various measured correlations between methods that work at close distances and methods that work at larger distances. Several methods rely on a standard candle, which is an astronomical object that has a known luminosity.The ladder analogy arises because no one technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second can be used to measure nearby to intermediate distances, and so on. Each rung of the ladder provides information that can be used to determine the distances at the next higher rung.