Summer 2001 Day 07: Intro to Solar System
... B) Brightness follows an inverse square relation B=L/(4πR2). Draw the picture (see figure 54.2 C) Calculate the brightness of the Sun as seen from Earth B=1,355 W/m2 i) Typical stellar brightness is about 2x10-8W D) Distances can be calculated by measuring B and modeling L Practice Problem #3 i) Exa ...
... B) Brightness follows an inverse square relation B=L/(4πR2). Draw the picture (see figure 54.2 C) Calculate the brightness of the Sun as seen from Earth B=1,355 W/m2 i) Typical stellar brightness is about 2x10-8W D) Distances can be calculated by measuring B and modeling L Practice Problem #3 i) Exa ...
Week 11 Answers
... 1. The Sun will spend 10 billion years on the main sequence (i.e. converting H into He in its central core). Another star has a mass of 20 solar masses, and a luminosity of 100,000 solar luminosities. How long will it survive on the main sequence? Use the fact that a star's lifetime is proportional ...
... 1. The Sun will spend 10 billion years on the main sequence (i.e. converting H into He in its central core). Another star has a mass of 20 solar masses, and a luminosity of 100,000 solar luminosities. How long will it survive on the main sequence? Use the fact that a star's lifetime is proportional ...
Chapter 21 Study Guide
... through space in the form of waves. 3. The distance between the crest of one wave and the crest of the next wave is called a ________________. 4. A range of different wavelengths is called a __________________________. 5. List the colors that form the spectrum of visible light.______________________ ...
... through space in the form of waves. 3. The distance between the crest of one wave and the crest of the next wave is called a ________________. 4. A range of different wavelengths is called a __________________________. 5. List the colors that form the spectrum of visible light.______________________ ...
Document
... 24. A star spends most of its life: a) As a protostar. b) In explosions lasting millions of years. c) As a red giant or supergiant. d) As a main sequence star. 25. What characteristic of a star cluster is used to determine its age? a) The number of red giants. b) The faintest stars seen in the clus ...
... 24. A star spends most of its life: a) As a protostar. b) In explosions lasting millions of years. c) As a red giant or supergiant. d) As a main sequence star. 25. What characteristic of a star cluster is used to determine its age? a) The number of red giants. b) The faintest stars seen in the clus ...
Chapter 28.3 Topic questions
... 20. What do we call a white dwarf when it carbon-oxygen core cools completely? 21. Stars that are ______________________ or _________________ times as massive as the sun have a different live cycle. 22. Does a massive star live as long as a main sequence star? 23. When a massive star uses has fused ...
... 20. What do we call a white dwarf when it carbon-oxygen core cools completely? 21. Stars that are ______________________ or _________________ times as massive as the sun have a different live cycle. 22. Does a massive star live as long as a main sequence star? 23. When a massive star uses has fused ...
Section 3: Evolution of Stars pages 114-119
... Obj: Explain why some constellations are only visible during certain season Because the earth is in constant motion. The earth orbits the sun so during certain seasons the earth is different locations around the sun so there are different stars visible in the night time sky. Obj: Distinguish be ...
... Obj: Explain why some constellations are only visible during certain season Because the earth is in constant motion. The earth orbits the sun so during certain seasons the earth is different locations around the sun so there are different stars visible in the night time sky. Obj: Distinguish be ...
Chapter 13 Notes – The Deaths of Stars
... Sun will expand to a red giant in ______________ billion years Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae F ...
... Sun will expand to a red giant in ______________ billion years Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae F ...
What is the net result of the proton-proton chain? a. 2 protons make
... a. All stars in the cluster are the same size and luminosity b. Their combined light makes them much easier to spot from a distance c. Stars in cluster have the same age, similar compositions, and are essentially at the same distance d. Stars in clusters are all relatively young and therefore shine ...
... a. All stars in the cluster are the same size and luminosity b. Their combined light makes them much easier to spot from a distance c. Stars in cluster have the same age, similar compositions, and are essentially at the same distance d. Stars in clusters are all relatively young and therefore shine ...
20.1 Notes
... own gravity and rebounds with a shock wave that violently blows the stars outer layers from the core. This huge, bright explosion is called a Type II _________________________. If the core that remains after a supernova has a mass of 1.4 – 3 solar masses it becomes a _______________ star, a very den ...
... own gravity and rebounds with a shock wave that violently blows the stars outer layers from the core. This huge, bright explosion is called a Type II _________________________. If the core that remains after a supernova has a mass of 1.4 – 3 solar masses it becomes a _______________ star, a very den ...
Day-7
... How is the lunar observing going? How is the sunset/sunrise observing going? This week: Dark Night Observing on Thur. 9/10 ...
... How is the lunar observing going? How is the sunset/sunrise observing going? This week: Dark Night Observing on Thur. 9/10 ...
Main Sequence Star
... a) Size of giants depends on the initial mass b) Could be a super red giant like Betelgeuse ...
... a) Size of giants depends on the initial mass b) Could be a super red giant like Betelgeuse ...
The Hertzsprung-Russell Diagram
... Which star has the smallest diameter? Which is the hottest star? Which is the star most like the sun? Which star is a cool supergiant? Which star has strong lines of ionized helium in its spectrum? Which star is the white dwarf? Which star has spectrum lines due to molecules? ...
... Which star has the smallest diameter? Which is the hottest star? Which is the star most like the sun? Which star is a cool supergiant? Which star has strong lines of ionized helium in its spectrum? Which star is the white dwarf? Which star has spectrum lines due to molecules? ...
Chapter 8, Lesson 4, 2nd Packet, pdf
... Critical Thinking It takes sunlight about 8 minutes to reach Earth. Is the Sun more than or less than a light-year away? Explain. _____________________________________________ ___________________________________________________________________ _______________________________________________________ ...
... Critical Thinking It takes sunlight about 8 minutes to reach Earth. Is the Sun more than or less than a light-year away? Explain. _____________________________________________ ___________________________________________________________________ _______________________________________________________ ...
Brighter than the average star?
... with the words “Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the galaxy lies a small unregarded yellow sun.” There is a slight inaccuracy in that sentence. Rather than being relatively insignificant, our Sun is in fact one of the biggest and brightest sta ...
... with the words “Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the galaxy lies a small unregarded yellow sun.” There is a slight inaccuracy in that sentence. Rather than being relatively insignificant, our Sun is in fact one of the biggest and brightest sta ...
Irregular Galaxies
... iron atoms into new elements. • Huge clouds of dust, gas, and the new elements explode into space. • This forms a new nebula. • Once a star supernovas, the core that remains of it will become either a neutron star or a black hole. ...
... iron atoms into new elements. • Huge clouds of dust, gas, and the new elements explode into space. • This forms a new nebula. • Once a star supernovas, the core that remains of it will become either a neutron star or a black hole. ...
Test#4
... d) the Sun burns them up 19. All the planets outside our Solar system have been detected by a) Hubble Space Telescope b) Radar c) gravitation perturbations of spacecraft d) Doppler effects in stellar spectra 20. Why do stars evolve a) Gravity eventually wears out b) they use up their fuel c) stars t ...
... d) the Sun burns them up 19. All the planets outside our Solar system have been detected by a) Hubble Space Telescope b) Radar c) gravitation perturbations of spacecraft d) Doppler effects in stellar spectra 20. Why do stars evolve a) Gravity eventually wears out b) they use up their fuel c) stars t ...
December 1, 2011 - Perry Local Schools
... 1. Place the small flashlight on a desk or table near the front of the room. 2. Place the large flashlight on a desk or table near the back of the room. 3. Gather at the front of the room so they can all see both flashlights easily. 4. Turn on both flashlights. 5. Darken the room. 6. Observe and co ...
... 1. Place the small flashlight on a desk or table near the front of the room. 2. Place the large flashlight on a desk or table near the back of the room. 3. Gather at the front of the room so they can all see both flashlights easily. 4. Turn on both flashlights. 5. Darken the room. 6. Observe and co ...
Star Maps and Constellations
... chases the bears (Ursa Major, Ursa Minor) around in circles, i.e. keeps them at the North pole ...
... chases the bears (Ursa Major, Ursa Minor) around in circles, i.e. keeps them at the North pole ...
STARS AND CONSTELLATIONS
... - The Big Dipper has a number of names- Big Bear, Dipper, Plow - Double star, Alcore and Mizar, middle star in dipper handle used by Roman Army as a test of eyesight. - American Indian story, the changing of leaves in fall - Used to find North Star. The North Star is about six times the distance bet ...
... - The Big Dipper has a number of names- Big Bear, Dipper, Plow - Double star, Alcore and Mizar, middle star in dipper handle used by Roman Army as a test of eyesight. - American Indian story, the changing of leaves in fall - Used to find North Star. The North Star is about six times the distance bet ...
The Stellar Luminosity Function
... Th e absolute magnitudes were then rounded to the nearest whole magnitude and then plotted. (See fig.1 .) The sun's absolute magnitude is 4.8. It can be seen readily that there are only 3 stars within the 16 light year radius that are in trinsically brighter than the sun. They are Sirius A (1.45), ...
... Th e absolute magnitudes were then rounded to the nearest whole magnitude and then plotted. (See fig.1 .) The sun's absolute magnitude is 4.8. It can be seen readily that there are only 3 stars within the 16 light year radius that are in trinsically brighter than the sun. They are Sirius A (1.45), ...
Notes on Sun-Earth-Moon (pg. 119)
... The moon’s gravity pulls on Earth. This pull creates a bulge of water on the side of the Earth that faces the Moon. Earth’s rotation and inertia creates a bulge of water on the opposite side of the Earth. The two bulges create high tides and between the two bulges are low tides. 7. Explain the diffe ...
... The moon’s gravity pulls on Earth. This pull creates a bulge of water on the side of the Earth that faces the Moon. Earth’s rotation and inertia creates a bulge of water on the opposite side of the Earth. The two bulges create high tides and between the two bulges are low tides. 7. Explain the diffe ...
LEO - nina`s Senior project
... November 17-18 every year and have a radiant near the bright star Gamma Leonis. The January Leonids are a minor shower that peaks between January 1 and 7. • Leo belongs to the Zodiac family of constellations, along with Aries, Taurus, Gemini, ...
... November 17-18 every year and have a radiant near the bright star Gamma Leonis. The January Leonids are a minor shower that peaks between January 1 and 7. • Leo belongs to the Zodiac family of constellations, along with Aries, Taurus, Gemini, ...
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.