Recap: High Mass Stars
... • Mass of star determines location on main sequence • Ranges in size from ½ Sun to 20 times the Sun’s size • Color depends on the surface temperature ...
... • Mass of star determines location on main sequence • Ranges in size from ½ Sun to 20 times the Sun’s size • Color depends on the surface temperature ...
The new europian project ROPACS (Rocky Planets Around …
... Feedback to the network. assessments. ...
... Feedback to the network. assessments. ...
Chapter 27 Stars and Galaxies
... stars and galaxies – Distance that light travels in one year – 300,000 km/s = speed of light – 9.5 trillion km in one year – Sun in 8 light minutes from Earth – Proxima Centauri: closest star to Earth (other than the sun) is 4.2 light years away Sirius (brightest star): 9 ly Polaris: 700 ly ...
... stars and galaxies – Distance that light travels in one year – 300,000 km/s = speed of light – 9.5 trillion km in one year – Sun in 8 light minutes from Earth – Proxima Centauri: closest star to Earth (other than the sun) is 4.2 light years away Sirius (brightest star): 9 ly Polaris: 700 ly ...
01.05.10 Centuries-Old Star Mystery Coming to a Close For almost
... For almost two centuries, humans have looked up at a bright star called Epsilon Aurigae and watched with their own eyes as it seemed to disappear into the night sky, slowly fading before coming back to life again. Today, as another dimming of the system is underway, mysteries about the star persist ...
... For almost two centuries, humans have looked up at a bright star called Epsilon Aurigae and watched with their own eyes as it seemed to disappear into the night sky, slowly fading before coming back to life again. Today, as another dimming of the system is underway, mysteries about the star persist ...
PH109 Exploring the Universe, Test 3, Fall 2001 Please indicate the
... 31. All stars with masses equal to or greater than the sun expand to become a) red giants, b) super novae, c) white dwarfs, d) blue giants 32. About how old do astronomers think the sun is a) 10 billion years, b) 5 billion years, c) 10 million years, d) 5 millions years 33. A measurement of the para ...
... 31. All stars with masses equal to or greater than the sun expand to become a) red giants, b) super novae, c) white dwarfs, d) blue giants 32. About how old do astronomers think the sun is a) 10 billion years, b) 5 billion years, c) 10 million years, d) 5 millions years 33. A measurement of the para ...
Section 3: Evolution of Stars pages 114-119
... Obj: Describe how stars are classified Stars are classified by their size, temperature, color and brightness Obj: Compare the sun to other types of stars on the H-R diagram Our sun is average in terms of size, temperature, brightness, and color. It is a main sequence star. Describe how star ...
... Obj: Describe how stars are classified Stars are classified by their size, temperature, color and brightness Obj: Compare the sun to other types of stars on the H-R diagram Our sun is average in terms of size, temperature, brightness, and color. It is a main sequence star. Describe how star ...
LEO - nina`s Senior project
... orbital period of 500 years. A planet was discovered in the orbit of the primary star in November 2009.The Gamma Leonis system has a combined apparent visual magnitude of 1.98 and is approximately 130 light years distant from the Sun. It is easy to observe in a small telescope under good conditions ...
... orbital period of 500 years. A planet was discovered in the orbit of the primary star in November 2009.The Gamma Leonis system has a combined apparent visual magnitude of 1.98 and is approximately 130 light years distant from the Sun. It is easy to observe in a small telescope under good conditions ...
The Life Cycle of the Stars
... The star-filled sky is in many ways like a large crowd of people. Within that group you may find babies, children, teenagers, adults and even senior citizens. Like humans, stars pass through different stages in their lives. They are born, they mature and, eventually, they die. However, unlike humans ...
... The star-filled sky is in many ways like a large crowd of people. Within that group you may find babies, children, teenagers, adults and even senior citizens. Like humans, stars pass through different stages in their lives. They are born, they mature and, eventually, they die. However, unlike humans ...
Lecture 21
... (e) Now what will be the period of the star's Doppler shift pattern for its spectral lines? (f) What is the orbital speed of the star in its orbit around the center of mass? (g) What will be the wavelength shift for a visible line (say with wavelength 500 nm)? ...
... (e) Now what will be the period of the star's Doppler shift pattern for its spectral lines? (f) What is the orbital speed of the star in its orbit around the center of mass? (g) What will be the wavelength shift for a visible line (say with wavelength 500 nm)? ...
Lesson 3 Power Notes Outline
... White dwarfs shine for billions of years, becoming fainter as they cool. This is the final stage in the life cycle of low-mass stars. ...
... White dwarfs shine for billions of years, becoming fainter as they cool. This is the final stage in the life cycle of low-mass stars. ...
d 2
... which will be in units “parsecs” • By definition, d=1pc if p=1”, so convert d to A.U. by using trigonometry • To calculate p for star with d given in lightyears, use d=1/p but convert ly to pc. • Remember: 1 degree = 3600” • Note: p is half the angle the star moves in half a year ...
... which will be in units “parsecs” • By definition, d=1pc if p=1”, so convert d to A.U. by using trigonometry • To calculate p for star with d given in lightyears, use d=1/p but convert ly to pc. • Remember: 1 degree = 3600” • Note: p is half the angle the star moves in half a year ...
Red Giants
... Eventually, the layer just outside the core called the ``shell layer'' gets hot and dense enough for fusion to start. The fusion in the layer just outside the core is called shell burning. This fusion is very rapid because the shell layer is still compressing and increasing in temperature. The lumin ...
... Eventually, the layer just outside the core called the ``shell layer'' gets hot and dense enough for fusion to start. The fusion in the layer just outside the core is called shell burning. This fusion is very rapid because the shell layer is still compressing and increasing in temperature. The lumin ...
Life Cycle of a Star - Intervention Worksheet
... dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a supernova. After the star explodes, some of the materials from the star are left behind. This material may form a n ...
... dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a supernova. After the star explodes, some of the materials from the star are left behind. This material may form a n ...
Module G - U1_ L3 - Life Cycle of Stars
... • Over time, a giant’s outer gases drift away, and the remaining core collapses, becoming denser and very hot. • A white dwarf is the hot, dense core of matter that remains from the collapse of a low-mass star. It is about the size of Earth. • White dwarfs shine for billions of years, becoming faint ...
... • Over time, a giant’s outer gases drift away, and the remaining core collapses, becoming denser and very hot. • A white dwarf is the hot, dense core of matter that remains from the collapse of a low-mass star. It is about the size of Earth. • White dwarfs shine for billions of years, becoming faint ...
Why Is the Sun a Star
... atoms and radiating some energy, but not in the fantastic amounts like true stars. These stars are known as brown dwarfs since they emit some light but are not as bright as the smallest true stars. They are dimly glowing like a cooling campfire ember. When you look out into the night sky across vast ...
... atoms and radiating some energy, but not in the fantastic amounts like true stars. These stars are known as brown dwarfs since they emit some light but are not as bright as the smallest true stars. They are dimly glowing like a cooling campfire ember. When you look out into the night sky across vast ...
Stars
... When we look up into the night sky, it is easy to imagine, as did the ancient Greeks, that all the stars are the same distance, stuck to some sort of Celestial Sphere that rotates through the heavens as the Earth stands still. This conclusion would be very wrong, however. It has taken astronomers th ...
... When we look up into the night sky, it is easy to imagine, as did the ancient Greeks, that all the stars are the same distance, stuck to some sort of Celestial Sphere that rotates through the heavens as the Earth stands still. This conclusion would be very wrong, however. It has taken astronomers th ...
Lab 2: The Planisphere
... and direction of the Milky Way across the sky. Looking north from Cygnus, there are other constellations that appear to lie in, or partially in, the plane of the Milky Way. Name two of these constellations. ...
... and direction of the Milky Way across the sky. Looking north from Cygnus, there are other constellations that appear to lie in, or partially in, the plane of the Milky Way. Name two of these constellations. ...
Birth and Life of a Star
... used and the star starts to ‘burn’ Helium this has greater radiant forces and so the outer layers expand to form a red giant. One and a half billion years later, the surface of the star is 3.3 times the size it is now, and its temperature about 4300 degrees. ...
... used and the star starts to ‘burn’ Helium this has greater radiant forces and so the outer layers expand to form a red giant. One and a half billion years later, the surface of the star is 3.3 times the size it is now, and its temperature about 4300 degrees. ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.