CH27.2 Stellar Evolution
... NONE are yet known to exist…..our universe isn’t thought to be old enough for this to happen yet! ...
... NONE are yet known to exist…..our universe isn’t thought to be old enough for this to happen yet! ...
PHYS 215 - First Major Exam MULTIPLE CHOICE
... 5) The first visibility of a celestial object in the pre-down sky is called: a) primum mobile ...
... 5) The first visibility of a celestial object in the pre-down sky is called: a) primum mobile ...
THE SOLAR SYSTEM
... may be only a few hundred feet wide or it may be several hundred miles wide. They are considered to be debris left over from the formation of the Solar System. Many asteroids orbit the Sun between the planets Mars and Jupiter. ...
... may be only a few hundred feet wide or it may be several hundred miles wide. They are considered to be debris left over from the formation of the Solar System. Many asteroids orbit the Sun between the planets Mars and Jupiter. ...
Geocentric vs. Heliocentric
... The planet moves along its epicycle as the epicycle moves along the deferent around the Earth. To make the observations as accurate as possible, it was necessary to place the Earth slightly off center of the orbits, but to preserve symmetry that meant that there was an equal place (“Equant”) opposit ...
... The planet moves along its epicycle as the epicycle moves along the deferent around the Earth. To make the observations as accurate as possible, it was necessary to place the Earth slightly off center of the orbits, but to preserve symmetry that meant that there was an equal place (“Equant”) opposit ...
How long does it take sunlight to reach the Earth?
... If the Sun suddenly disappeared from the Universe (not that this could actually happen, don't And so, if the light from the nearest star (Alpha Centauri) takes more than 4 years to reach us, panic), it would take a little more than 8 minutes before you realized it was time to put on a sweater. we're ...
... If the Sun suddenly disappeared from the Universe (not that this could actually happen, don't And so, if the light from the nearest star (Alpha Centauri) takes more than 4 years to reach us, panic), it would take a little more than 8 minutes before you realized it was time to put on a sweater. we're ...
Use this form to take notes in class about stars
... 2. What is the initial reason why the particles within the nebula begin to ...
... 2. What is the initial reason why the particles within the nebula begin to ...
Stars are classified according to their color
... • Stars are classified according to their color temperature: ...
... • Stars are classified according to their color temperature: ...
Wrongway Planets_Do Gymnastics
... larger object — another star, or a giant planet, perhaps — may have come along. Gravity is a force that comes with mass, so planets or stars with more mass have more gravity, and thus a stronger pull on other objects. Large objects have strong gravitational forces, and these strong forces may have a ...
... larger object — another star, or a giant planet, perhaps — may have come along. Gravity is a force that comes with mass, so planets or stars with more mass have more gravity, and thus a stronger pull on other objects. Large objects have strong gravitational forces, and these strong forces may have a ...
Round 1
... An ’HR diagram’ is a plot of which two quantities. (T (or spectral type) vs. L (or absolute magnitude)) $1200 More luminous stars tend to live this. (shorter lives) $1600 This tells you how much energy is released in the fusion of hydrogen to helium. (E = ∆mc2 where ∆m is the mass difference between ...
... An ’HR diagram’ is a plot of which two quantities. (T (or spectral type) vs. L (or absolute magnitude)) $1200 More luminous stars tend to live this. (shorter lives) $1600 This tells you how much energy is released in the fusion of hydrogen to helium. (E = ∆mc2 where ∆m is the mass difference between ...
CopernicanRev1
... Leading up to the Copernican Revolution - More Detail ~700 BCE Early astronomy was about time keeping (when to sow and reap crops)* Needed better observations to keep the various calendars synchronized Hesiad, Works and Days …when the Pleiades rise it is time to use the sickle, but the plough when t ...
... Leading up to the Copernican Revolution - More Detail ~700 BCE Early astronomy was about time keeping (when to sow and reap crops)* Needed better observations to keep the various calendars synchronized Hesiad, Works and Days …when the Pleiades rise it is time to use the sickle, but the plough when t ...
Lecture 1
... that Venus exhibits phases like those of the Moon • Galileo also noticed that the apparent size of Venus as seen through his telescope was related to the planet’s phase • Venus appears small at gibbous phase and largest at crescent ...
... that Venus exhibits phases like those of the Moon • Galileo also noticed that the apparent size of Venus as seen through his telescope was related to the planet’s phase • Venus appears small at gibbous phase and largest at crescent ...
STUDY GUIDE Multiple Choice Identify the choice that best
... The Earth seemed to move on its axis. b. Earth’s motions are only recently known because of high-powered telescopes. c. Objects in the sky appear to circle around Earth. d. Ancient observers believed the universe was stationary. ...
... The Earth seemed to move on its axis. b. Earth’s motions are only recently known because of high-powered telescopes. c. Objects in the sky appear to circle around Earth. d. Ancient observers believed the universe was stationary. ...
Slides
... same plane. They spin in a “direct sense” – that is, they spin in the same direction as they orbit the sun. (The gravity of the sun keeps the planets in their orbits) The two exceptions are Venus and Uranus. These differences are believed to stem from collisions early in their formation. ...
... same plane. They spin in a “direct sense” – that is, they spin in the same direction as they orbit the sun. (The gravity of the sun keeps the planets in their orbits) The two exceptions are Venus and Uranus. These differences are believed to stem from collisions early in their formation. ...
Structure of the Universe
... by combining smaller elements to form a larger one, specifically two hydrogen atoms form a helium atom, ...
... by combining smaller elements to form a larger one, specifically two hydrogen atoms form a helium atom, ...
Pluto(2274km)- Pluto is a dwarf planet, and was classified as such in
... Sun(1.39x10^6km)The Sun is a G-type main sequence star based on its spectral class. The temperature of the photosphere (the outer shell of a star) is about 10,000°F. It is composed mostly of hydrogen, some helium, and smaller quantities of heavier elements including oxygen. It is the most important ...
... Sun(1.39x10^6km)The Sun is a G-type main sequence star based on its spectral class. The temperature of the photosphere (the outer shell of a star) is about 10,000°F. It is composed mostly of hydrogen, some helium, and smaller quantities of heavier elements including oxygen. It is the most important ...
Lecture L24 ASTB21
... ("lithopanspermia"), thus affording them better protection from high-energy radiation in space. Whether events violent enough to hurl rocks from the surface of a biologically active planet into interstellar space ever occur is not clear. But there is now overwhelming evidence that ballistic pansperm ...
... ("lithopanspermia"), thus affording them better protection from high-energy radiation in space. Whether events violent enough to hurl rocks from the surface of a biologically active planet into interstellar space ever occur is not clear. But there is now overwhelming evidence that ballistic pansperm ...
“The Big Bang”- The Life Cycle of the Sun
... This is can be used as a KWL. Go over some thoughts about what we do know already about space? Ex: The sun is a star. Discuss why the sun is important to us. Discuss why the sun looks so much larger and brighter than other stars. Use models to explain relative size and distance. ( some examples in h ...
... This is can be used as a KWL. Go over some thoughts about what we do know already about space? Ex: The sun is a star. Discuss why the sun is important to us. Discuss why the sun looks so much larger and brighter than other stars. Use models to explain relative size and distance. ( some examples in h ...
Extra-Solar Planets
... (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. (1)A "dwarf planet" is a celestial body that: (a) is in orbit around th ...
... (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. (1)A "dwarf planet" is a celestial body that: (a) is in orbit around th ...
NASA discovers Earth`s bigger, older cousin, Kepler 452b
... Known as Kepler-452b, the planet was detected by the US space agency’s Kepler Space Telescope, which has been hunting for other worlds like ours since 2009. “Kepler-452b is orbiting a close cousin of our Sun, but one that is 1.5 billion years older,” NASA said in a statement. Kepler-452b orbits a pa ...
... Known as Kepler-452b, the planet was detected by the US space agency’s Kepler Space Telescope, which has been hunting for other worlds like ours since 2009. “Kepler-452b is orbiting a close cousin of our Sun, but one that is 1.5 billion years older,” NASA said in a statement. Kepler-452b orbits a pa ...
Astronomy Campus Assessment
... A. The other stars have a smaller diameter than the sun. B. The sun is the largest and brightest star in the Milky Way galaxy. C. The sun is many times closer to Earth than any other star. D. The sun will one day become a supergiant. ...
... A. The other stars have a smaller diameter than the sun. B. The sun is the largest and brightest star in the Milky Way galaxy. C. The sun is many times closer to Earth than any other star. D. The sun will one day become a supergiant. ...
Fusion in the Sun
... During the MAIN SEQUENCE stage hydrogen is fused and creates a helium core. The main fuel for the sun is hydrogen gas. During the Red Giant stage helium is fused and creates a carbon core. The main fuel for a Red Giant is helium gas. When fusion is done in a red giant the core of the White Dwarf wil ...
... During the MAIN SEQUENCE stage hydrogen is fused and creates a helium core. The main fuel for the sun is hydrogen gas. During the Red Giant stage helium is fused and creates a carbon core. The main fuel for a Red Giant is helium gas. When fusion is done in a red giant the core of the White Dwarf wil ...