Final Exam Review (Word doc)
... binaries, optical doubles are not true binaries because they are not gravitationally bound. 50. Because stars in clusters all have similar age and distance, the main underlying physical cause of their different appearances is their mass. 51. If one region of the sky shows nearby stars but no distant ...
... binaries, optical doubles are not true binaries because they are not gravitationally bound. 50. Because stars in clusters all have similar age and distance, the main underlying physical cause of their different appearances is their mass. 51. If one region of the sky shows nearby stars but no distant ...
The Hidden Lives of Galaxies NSTA 2001
... heat expands the outer layers. • Meanwhile, as core collapses, ...
... heat expands the outer layers. • Meanwhile, as core collapses, ...
ReviewQuestionsForClass
... Where are the red giants? White dwarfs? Why are they where they are on an HR diagram? How do size, temperature, and distance to a star affect its brightness? Which stars on the main sequence are the brightest? Hottest? Biggest? Bluest? Live the longest? What are the different astronomical objects? C ...
... Where are the red giants? White dwarfs? Why are they where they are on an HR diagram? How do size, temperature, and distance to a star affect its brightness? Which stars on the main sequence are the brightest? Hottest? Biggest? Bluest? Live the longest? What are the different astronomical objects? C ...
Option: Astrophysics Objects in the Universe: Asteroid: a small rocky
... o Stellar cluster: group of stars held together by gravitation in the same region of space, created roughly at the same time from the same nebulae o Open Cluster: Up to several hundred stars that are 10 billion years old or less. May still contain gas and dust o Globular Cluster: Cluster of many old ...
... o Stellar cluster: group of stars held together by gravitation in the same region of space, created roughly at the same time from the same nebulae o Open Cluster: Up to several hundred stars that are 10 billion years old or less. May still contain gas and dust o Globular Cluster: Cluster of many old ...
Our Sun - STEMpire Central
... a) black dwarf b) red dwarf c) white dwarf d) blue dwarf 3. These objects are bigger than most planets, but just barely too small to ignite nuclear fusion. Don’t be rude and call them “failed stars”! a) black dwarf b) overachieving planets c) brown dwarf d) red supergiants ...
... a) black dwarf b) red dwarf c) white dwarf d) blue dwarf 3. These objects are bigger than most planets, but just barely too small to ignite nuclear fusion. Don’t be rude and call them “failed stars”! a) black dwarf b) overachieving planets c) brown dwarf d) red supergiants ...
Lecture10
... Colors and spectral types measure a star’s temperature The Hertzsprung-Russell (H-R) diagram is a graph plotting luminosity vs temperature • Most stars belong to the main sequence. Other important classes are giants, supergiants and white dwarfs. • Spectral typing can be used to determine distances ...
... Colors and spectral types measure a star’s temperature The Hertzsprung-Russell (H-R) diagram is a graph plotting luminosity vs temperature • Most stars belong to the main sequence. Other important classes are giants, supergiants and white dwarfs. • Spectral typing can be used to determine distances ...
Star Life Cycle Review 1. What is the first stage of star creation? A
... Which of the following is not something a star can turn into after it has run out of fuel? A. white dwarf B. brown dwarf C. black hole D. neutron star ...
... Which of the following is not something a star can turn into after it has run out of fuel? A. white dwarf B. brown dwarf C. black hole D. neutron star ...
Stars
... These can form after a Supernova. A major explosion causes all of the star matter to contract together. All of this contraction creates an area of extremely high gravity and density. A pea sized sample of neutron star would weigh 100 million tons. It is like taking each person in the world and combi ...
... These can form after a Supernova. A major explosion causes all of the star matter to contract together. All of this contraction creates an area of extremely high gravity and density. A pea sized sample of neutron star would weigh 100 million tons. It is like taking each person in the world and combi ...
Stars
... • Watch the Video Field Trip about Stars. • Discuss the following questions with the person in front of you. – How does mass affect the life of a star? – Why do stars die? ...
... • Watch the Video Field Trip about Stars. • Discuss the following questions with the person in front of you. – How does mass affect the life of a star? – Why do stars die? ...
Teacher Subject Title Concept Context Tek/SE Verb
... Objects in the sky can be described and illustrated. We can observe objects in the sky, such as the Moon, Sun, and stars. — When is the best time to observe stars? — When is the best time to observe the Sun? The Sun is our nearest star. — What is the Sun? Objects in the sky can be described and illu ...
... Objects in the sky can be described and illustrated. We can observe objects in the sky, such as the Moon, Sun, and stars. — When is the best time to observe stars? — When is the best time to observe the Sun? The Sun is our nearest star. — What is the Sun? Objects in the sky can be described and illu ...
Stellar Evolution Hertzsprung-Russell Diagram Hertzsprung
... some go through nova/supernova stage most become black dwarfs and disappear ...
... some go through nova/supernova stage most become black dwarfs and disappear ...
File
... If you were traveling at 30 kilometers per second, how long would it take to reach Proxima Centauri, the nearest star to Earth other than our Sun? Proxima Centauri is 4.01 ´ 1013 kilometers from Earth. Hint: there are 31,557,600 seconds in one year. a. Approximately 134 years b. Approximately 4,240 ...
... If you were traveling at 30 kilometers per second, how long would it take to reach Proxima Centauri, the nearest star to Earth other than our Sun? Proxima Centauri is 4.01 ´ 1013 kilometers from Earth. Hint: there are 31,557,600 seconds in one year. a. Approximately 134 years b. Approximately 4,240 ...
01 - Ionia Public Schools
... 11. What is important about the onset of fusion? _______________________________________________________________ _______________________________________________________________ 12. What happens as gravity increases the pressure on the matter within a star? ___________________________________________ ...
... 11. What is important about the onset of fusion? _______________________________________________________________ _______________________________________________________________ 12. What happens as gravity increases the pressure on the matter within a star? ___________________________________________ ...
Exam Name___________________________________
... C) It is the total energy emitted by the star per second, measured in joules/sec or watts. ...
... C) It is the total energy emitted by the star per second, measured in joules/sec or watts. ...
Stellar Evolution 1 Star Formation 2 Nebulae
... The lifetimes of stars are typically in the billions of years, although the more massive the star, the shorter the lifetime. The “birth” and “death” of a star take a relatively short time compared to the long middle part of the “life” of a star. In the long middle part, in which the star is relative ...
... The lifetimes of stars are typically in the billions of years, although the more massive the star, the shorter the lifetime. The “birth” and “death” of a star take a relatively short time compared to the long middle part of the “life” of a star. In the long middle part, in which the star is relative ...
Chapter 26
... brightness of sample stars 2. Used to estimate the sizes of the stars and their distances, and to infer how stars change over time 3. Main sequence- diagonal line on the diagram where 90% of stars are found 4. Supergiants- very bright, very large stars 5. Giants- large and bright 6. White Dwarf- sma ...
... brightness of sample stars 2. Used to estimate the sizes of the stars and their distances, and to infer how stars change over time 3. Main sequence- diagonal line on the diagram where 90% of stars are found 4. Supergiants- very bright, very large stars 5. Giants- large and bright 6. White Dwarf- sma ...
Solutions
... of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Galaxy and the distance to the Andromeda Galaxy, refer to the Reading Assignment from September 17.) The ...
... of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Galaxy and the distance to the Andromeda Galaxy, refer to the Reading Assignment from September 17.) The ...
Brichler-powerpoint
... –When the most massive stars die, they become black holes – an object with gravity so strong that not ...
... –When the most massive stars die, they become black holes – an object with gravity so strong that not ...
HOMEWORK #1
... b. Observe the lightcurve of Algol (Persei - the “Demon Star”) Algol is the most famous eclipsing binary star system. The two stars orbit each other every 2 days 20 hours 49 minutes and periodically eclipse each other from the perspective of Earth. On the evenings of October 9 and 12, you can obse ...
... b. Observe the lightcurve of Algol (Persei - the “Demon Star”) Algol is the most famous eclipsing binary star system. The two stars orbit each other every 2 days 20 hours 49 minutes and periodically eclipse each other from the perspective of Earth. On the evenings of October 9 and 12, you can obse ...
HOMEWORK #1
... b. Observe the lightcurve of Algol (Persei - the “Demon Star”) Algol is the most famous eclipsing binary star system. The two stars orbit each other every 2 days 20 hours 49 minutes and periodically eclipse each other from the perspective of Earth. On the evenings of October 9 and 12, you can obse ...
... b. Observe the lightcurve of Algol (Persei - the “Demon Star”) Algol is the most famous eclipsing binary star system. The two stars orbit each other every 2 days 20 hours 49 minutes and periodically eclipse each other from the perspective of Earth. On the evenings of October 9 and 12, you can obse ...
ASTR 553/554 (1) : Questions
... Galaxy disks often have exponential surface brightness profiles: I(R) = I(0) exp(-R/Rd), where Rd is the disk (e-folding) "scale length", and I(0) is the central surface brightness. Recall, the units of I(R) are L pc-2. For example, the disk of the Milky Way has Rd = 3.5 kpc, and I(R) at the solar r ...
... Galaxy disks often have exponential surface brightness profiles: I(R) = I(0) exp(-R/Rd), where Rd is the disk (e-folding) "scale length", and I(0) is the central surface brightness. Recall, the units of I(R) are L pc-2. For example, the disk of the Milky Way has Rd = 3.5 kpc, and I(R) at the solar r ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... brilliant objects in their home galaxies, visible from millions or even billions of light-years away. Supernovae are of several distinct types, as is evident from their spectra—the graphs astronomers plot showing the distribution of colors of the supernova light. One major category is core-collapse ...
... brilliant objects in their home galaxies, visible from millions or even billions of light-years away. Supernovae are of several distinct types, as is evident from their spectra—the graphs astronomers plot showing the distribution of colors of the supernova light. One major category is core-collapse ...
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.