PHYS 175 Fall 2014 Final Recitation Ch. 16 The Sun
... These stars have a known relationship between period and luminosity. They are one of the standard candles used on the cosmic distance ladder. Since they are found at distances that overlap other techniques on the ladder, we know that the estimates of distance are valid (we have calibrated the techni ...
... These stars have a known relationship between period and luminosity. They are one of the standard candles used on the cosmic distance ladder. Since they are found at distances that overlap other techniques on the ladder, we know that the estimates of distance are valid (we have calibrated the techni ...
RMH_Stellar_Evolution_Ast2001_09_29_09
... Indirect: -- must know distance Luminosity – depends on surface area (size) and temperature (Stefan-Boltzman Law) Mass -- with luminosity + physics , mass – luminosity relation ...
... Indirect: -- must know distance Luminosity – depends on surface area (size) and temperature (Stefan-Boltzman Law) Mass -- with luminosity + physics , mass – luminosity relation ...
Lecture 6: Properties of Stars The Constellations The Constellations
... o Stellar distances are measured using parallax. o Distant stars used as reference points. Closer star appears to move relative to distant stars during Earth’s orbit about Sun. o Parallax angle: p ~ 1 AU / d => d = ~ 1 AU / p ...
... o Stellar distances are measured using parallax. o Distant stars used as reference points. Closer star appears to move relative to distant stars during Earth’s orbit about Sun. o Parallax angle: p ~ 1 AU / d => d = ~ 1 AU / p ...
Lecture 5: Light as a tool
... 1) What do you think the surface temperature of a red star would be? 2) A blue star has a wavelength of maximum emission at 434 nm. What is the surface temperature of this star? ...
... 1) What do you think the surface temperature of a red star would be? 2) A blue star has a wavelength of maximum emission at 434 nm. What is the surface temperature of this star? ...
Pretest
... measures how far light travels through space in one year. 12. The distance that a star so far away would appear to move when seen from opposite sides of Earth’s orbit would be too small to measure accurately. 13. A star is born when nuclear fusion begins. 14. Most star formation takes place in the s ...
... measures how far light travels through space in one year. 12. The distance that a star so far away would appear to move when seen from opposite sides of Earth’s orbit would be too small to measure accurately. 13. A star is born when nuclear fusion begins. 14. Most star formation takes place in the s ...
Stars-Chapter 18
... Life Cycle of Stars • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it ...
... Life Cycle of Stars • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it ...
The Sun and Other Stars - Tuslaw Local School District
... • All main sequence stars eventually become red ...
... • All main sequence stars eventually become red ...
Session Two - A Sidewalk Astronomer in Charlottetown
... difference is that a star is a point of light, whereas a galaxy has a larger apparent surface area. The entire luminosity of the object is summed over it's area. The magnitude is then the same as a point source like a star emitting the luminosity. Therefore, large objects appear dimmer than stars th ...
... difference is that a star is a point of light, whereas a galaxy has a larger apparent surface area. The entire luminosity of the object is summed over it's area. The magnitude is then the same as a point source like a star emitting the luminosity. Therefore, large objects appear dimmer than stars th ...
Star in a Box Worksheet - Beginning
... ✰ Launch Star in a Box and open the lid. The main plot is a Hertzsprung-Russell diagram. On the right, the information panel allows comparisons between the radius, surface temperature, luminosity and mass of the star relative to the Sun. The starting parameters are for a star like the Sun. ...
... ✰ Launch Star in a Box and open the lid. The main plot is a Hertzsprung-Russell diagram. On the right, the information panel allows comparisons between the radius, surface temperature, luminosity and mass of the star relative to the Sun. The starting parameters are for a star like the Sun. ...
Solar Nebula Theory
... 1) Mars’ sized object struck Earth early on in its history. 2) Crust material is vaporized. ...
... 1) Mars’ sized object struck Earth early on in its history. 2) Crust material is vaporized. ...
E1 Introduction to the Universe NEW
... • Dwarf galaxies might have only a few million stars, many galaxies have hundreds of billions. • The Universe has around 100 billion galaxies ...
... • Dwarf galaxies might have only a few million stars, many galaxies have hundreds of billions. • The Universe has around 100 billion galaxies ...
ref H-R Spectral types
... It is also the brightest star seen from Earth. One of the two stars that make up what we call “Sirius”,Sirius A is a type A star. ...
... It is also the brightest star seen from Earth. One of the two stars that make up what we call “Sirius”,Sirius A is a type A star. ...
Earth Science, 10th edition Chapter 23: Beyond Our Solar System I
... 2. Negative numbers are also used 2. Absolute magnitude a. "True" or intrinsic brightness of a star b. Brightness at a standard distance of 32.6 light-years c. Most stars' absolute magnitudes are between -5 and +15 C. Color and temperature 1. Hot star a. Temperature above 30,000 K b. Emits short-wav ...
... 2. Negative numbers are also used 2. Absolute magnitude a. "True" or intrinsic brightness of a star b. Brightness at a standard distance of 32.6 light-years c. Most stars' absolute magnitudes are between -5 and +15 C. Color and temperature 1. Hot star a. Temperature above 30,000 K b. Emits short-wav ...
Star Questions 2008 - Fort Thomas Independent Schools
... c. absolute and apparent brightness Absolute brightness or magnitude is the true brightness of the star as seen from 10 parsecs from the Earth, the apparent brightness or magnitude is the brightness of the star as seen from the Earth. 7. What is the H-R Diagram? A graph showing the relationship of s ...
... c. absolute and apparent brightness Absolute brightness or magnitude is the true brightness of the star as seen from 10 parsecs from the Earth, the apparent brightness or magnitude is the brightness of the star as seen from the Earth. 7. What is the H-R Diagram? A graph showing the relationship of s ...
Lecture Summary (11/22)
... nebulae, dusty disks, and infrared stars to support our theories of star formation. As gravity compressed the gas, our protosun formed. Eventually the Sun began to fuse hydrogen into helium and was able to reach equilibrium. All main sequence stars achieve stability by fusing hydrogen to helium in t ...
... nebulae, dusty disks, and infrared stars to support our theories of star formation. As gravity compressed the gas, our protosun formed. Eventually the Sun began to fuse hydrogen into helium and was able to reach equilibrium. All main sequence stars achieve stability by fusing hydrogen to helium in t ...
Astr 40 Final Exam Review ()
... 44. If two stars are on the main sequence, and one is more luminous than the other, we can be sure that the more luminous star is the more massive. 45. Giant stars are more rare than main sequence stars because the giant stage is very short compared to the main sequence stage. 46. The event that mar ...
... 44. If two stars are on the main sequence, and one is more luminous than the other, we can be sure that the more luminous star is the more massive. 45. Giant stars are more rare than main sequence stars because the giant stage is very short compared to the main sequence stage. 46. The event that mar ...
01 - Ionia Public Schools
... c. the main-sequence stage d. the nebula stage _____ 16. A star that has the same mass as the sun’s mass a. stays on the main sequence for about 10 million years. b. stays on the main sequence for about 10 billion years. c. stays on the main sequence for about 14 billion years. d. stays on the main ...
... c. the main-sequence stage d. the nebula stage _____ 16. A star that has the same mass as the sun’s mass a. stays on the main sequence for about 10 million years. b. stays on the main sequence for about 10 billion years. c. stays on the main sequence for about 14 billion years. d. stays on the main ...
How do stars form?
... Oldest Earth rock: 3.98 Ga Acasta Gneiss Oldest Earth minerals: 4.4 Ga Chemistry of the Sun and rate of fusion Age of oldest Moon Rocks: 3.3 - 4.2 Ga Age of Meteorites: 4.5 Ga ...
... Oldest Earth rock: 3.98 Ga Acasta Gneiss Oldest Earth minerals: 4.4 Ga Chemistry of the Sun and rate of fusion Age of oldest Moon Rocks: 3.3 - 4.2 Ga Age of Meteorites: 4.5 Ga ...
Slide 1
... • Dwarf galaxies might have only a few million stars, many galaxies have hundreds of billions. • The Universe has around 100 billion galaxies ...
... • Dwarf galaxies might have only a few million stars, many galaxies have hundreds of billions. • The Universe has around 100 billion galaxies ...
Galactic Address/Stars/Constellations
... What is a star? • A star is an object in space that produces its own light and heat through nuclear ...
... What is a star? • A star is an object in space that produces its own light and heat through nuclear ...
Death of Stars - Astronomy @ Walton High School
... A supernova is the brightest event in space. There are two types of supernova: 1 Similar to a nova where a dwarf takes material from a giant. This time the explosion destroys the dwarf. Typically this takes place when the mass of the white dwarf is over 1.4 solar masses. 2 When a star has a mass gre ...
... A supernova is the brightest event in space. There are two types of supernova: 1 Similar to a nova where a dwarf takes material from a giant. This time the explosion destroys the dwarf. Typically this takes place when the mass of the white dwarf is over 1.4 solar masses. 2 When a star has a mass gre ...
File
... Little dipper – they are actually asterisms - prominent patterns or groups of stars, typically having a popular name but smaller than a constellation 12. Explain precession and what it means in the future - slow movement of the axis of a spinning body around another axis due to a torque (such as gra ...
... Little dipper – they are actually asterisms - prominent patterns or groups of stars, typically having a popular name but smaller than a constellation 12. Explain precession and what it means in the future - slow movement of the axis of a spinning body around another axis due to a torque (such as gra ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.