The Hertzsprung-Russell diagram and the nature of stars
... • A statistical argument (no physics) • Physical argument 1: what holds stars up? • Physical argument 2: what powers the stars (where do they get their energy supply?) ...
... • A statistical argument (no physics) • Physical argument 1: what holds stars up? • Physical argument 2: what powers the stars (where do they get their energy supply?) ...
Earth Is Not the Center of the Universe
... the moon moves around Earth in an orbit. If the moon moved more slowly, Earthʼs gravity would pull it into Earth. If the moon moved more rapidly, it would escape into space. Since the sun is the largest mass in our solar system, it creates the gravitational force needed to hold Earth and other plane ...
... the moon moves around Earth in an orbit. If the moon moved more slowly, Earthʼs gravity would pull it into Earth. If the moon moved more rapidly, it would escape into space. Since the sun is the largest mass in our solar system, it creates the gravitational force needed to hold Earth and other plane ...
Solar System TrackStar Packet - Mr. Ruggiero`s Science 8-2
... 3. Name the now-recognized 8 planets in our solar system in order, starting with the planet closest to the sun. Identifying one interesting fact about each. Planet ...
... 3. Name the now-recognized 8 planets in our solar system in order, starting with the planet closest to the sun. Identifying one interesting fact about each. Planet ...
–1– AST104 Sp04: WELCOME TO EXAM 1 Multiple Choice
... c. there is more turbulent air in space than 33. A telescope with a 5 meter objective mir- in the Earth’s atmosphere ror diameter gathers −−−− times more light and d. all optical light is completely absorbed can resolve objects of −−−− the angular diameter by the Earth’s atmosphere when compared to ...
... c. there is more turbulent air in space than 33. A telescope with a 5 meter objective mir- in the Earth’s atmosphere ror diameter gathers −−−− times more light and d. all optical light is completely absorbed can resolve objects of −−−− the angular diameter by the Earth’s atmosphere when compared to ...
Return both exam and scantron sheet when you
... 25. Which of these stars spends the longest time as a main sequence star? (a) 0.5 solar mass star. (b) 1 solar mass star. (c) 15 solar mass star. (d) [No statement can be made.] 26. The pressure of degenerate electrons increases with temperature. (a) True. (b) False. 27. Which of these fusion reacti ...
... 25. Which of these stars spends the longest time as a main sequence star? (a) 0.5 solar mass star. (b) 1 solar mass star. (c) 15 solar mass star. (d) [No statement can be made.] 26. The pressure of degenerate electrons increases with temperature. (a) True. (b) False. 27. Which of these fusion reacti ...
Rotation and Revolution
... A planet is a large body that shines by reflected light and travels in a stable path around a star. The sun is the star of our solar system and controls the motion of all the planets that travel around it. The planets are illuminated, or lit up, by sunlight. Some planets may be mistaken as bright st ...
... A planet is a large body that shines by reflected light and travels in a stable path around a star. The sun is the star of our solar system and controls the motion of all the planets that travel around it. The planets are illuminated, or lit up, by sunlight. Some planets may be mistaken as bright st ...
Tycho: The most accurate pre
... • Copernican model of orbital periods • Synodic period is the apparent orbital period of a planet, viewed from the earth, when the earth-planet-sun are in successive conjunction or opposition • Sidereal (with respect to stars) period is the real orbital period around the Sun • Synodic periods of out ...
... • Copernican model of orbital periods • Synodic period is the apparent orbital period of a planet, viewed from the earth, when the earth-planet-sun are in successive conjunction or opposition • Sidereal (with respect to stars) period is the real orbital period around the Sun • Synodic periods of out ...
gravity
... a. The Moon has a smaller mass than the Earth. b. The Moon is farther from the Sun. c. The Earth less dense than the Moon. d. The Moon’s radius is greater than that of Earth’s. C1 ...
... a. The Moon has a smaller mass than the Earth. b. The Moon is farther from the Sun. c. The Earth less dense than the Moon. d. The Moon’s radius is greater than that of Earth’s. C1 ...
Old Final
... A) the closer you are to a black hole the slower time passes for you to an outside observer B) light can not escape them C) because of their immense density they can always suck in anything D) light is redshifted while leaving the potential well E) we have no knowledge of what happens beyond the Sch ...
... A) the closer you are to a black hole the slower time passes for you to an outside observer B) light can not escape them C) because of their immense density they can always suck in anything D) light is redshifted while leaving the potential well E) we have no knowledge of what happens beyond the Sch ...
the solar system and the universe
... Dark ring system similar to that of Uranus. Due to Pluto’s eccentric orbit, Neptune is sometimes the furthest planet from the Sun. Cloud belts, zones and turbulent storms similar to Jupiter. Storms have fastest winds in Solar System at 670 m per second. Great Dark Spot observed by Voyager 2 in 1989, ...
... Dark ring system similar to that of Uranus. Due to Pluto’s eccentric orbit, Neptune is sometimes the furthest planet from the Sun. Cloud belts, zones and turbulent storms similar to Jupiter. Storms have fastest winds in Solar System at 670 m per second. Great Dark Spot observed by Voyager 2 in 1989, ...
6.3 Gravity and Orbits
... bump on the Earth’s surface. o The affect is slight on the earth’s land. o The affect can be seen in the movement of the ocean’s surface in the form of tides As the moon orbits the Earth each day, its gravity pulls on the ocean surface closest to it. o Low tide occurs when the moon passes over an ...
... bump on the Earth’s surface. o The affect is slight on the earth’s land. o The affect can be seen in the movement of the ocean’s surface in the form of tides As the moon orbits the Earth each day, its gravity pulls on the ocean surface closest to it. o Low tide occurs when the moon passes over an ...
Inner and Outer Planets
... * The atmosphere of Mars is more than 95% carbon dioxide. It is similar in composition to Venus’s atmosphere but much thinner. ...
... * The atmosphere of Mars is more than 95% carbon dioxide. It is similar in composition to Venus’s atmosphere but much thinner. ...
UCCS PES 1050 Astronomy 1 WK Spring 2012 Assignment 1 name
... What do we call the line that the Sun traces across the celestial sphere? The celestial equator. The Mason-Dixon Line. The extension of the Earth's equator on the celestial sphere. The ecliptic. ...
... What do we call the line that the Sun traces across the celestial sphere? The celestial equator. The Mason-Dixon Line. The extension of the Earth's equator on the celestial sphere. The ecliptic. ...
EXPLORE: Where do meteorites come from
... but every other planet, moon and rock has it’s own gravity which does it’s best to pull anything smaller in. When there’s two objects with a decent sized gravity (such as the Earth and the moon), they don’t crash into each other, they keep each other at arms length because they’re also caught up in ...
... but every other planet, moon and rock has it’s own gravity which does it’s best to pull anything smaller in. When there’s two objects with a decent sized gravity (such as the Earth and the moon), they don’t crash into each other, they keep each other at arms length because they’re also caught up in ...
Sample exam 2
... (choose one): a. move from luminosity class V to class III b. move from luminosity class I to class V c. move from spectral type G to spectral type O d. move from spectral type M to spectral type G e. not change luminosity class or spectral type Essay questions — choose three of the following questi ...
... (choose one): a. move from luminosity class V to class III b. move from luminosity class I to class V c. move from spectral type G to spectral type O d. move from spectral type M to spectral type G e. not change luminosity class or spectral type Essay questions — choose three of the following questi ...
Powerpoint 2003
... the perfect shape, the circle Greek also had no reason to believe that the Earth was not the center of the ...
... the perfect shape, the circle Greek also had no reason to believe that the Earth was not the center of the ...
Elements and Isotopes - University of California, Berkeley
... Inside the Sun The temperature and pressure in the core are extreme enough for fusion (and the Sun’s gravity keeps them that way). Most energy is produced in the inner 20%. Convection carries the energy in the outer 30%. Most of the mass is in the inner 50% because the density is much higher. ...
... Inside the Sun The temperature and pressure in the core are extreme enough for fusion (and the Sun’s gravity keeps them that way). Most energy is produced in the inner 20%. Convection carries the energy in the outer 30%. Most of the mass is in the inner 50% because the density is much higher. ...
ppt
... Irregular (sometimes spherical) lumps of rock and metal that had never formed into planets during the formation of the solar system Several hundred thousand asteroids have been observed in the 10km to 100km size range, there maybe millions more of about 1km in size 26 are larger than 200km, the bigg ...
... Irregular (sometimes spherical) lumps of rock and metal that had never formed into planets during the formation of the solar system Several hundred thousand asteroids have been observed in the 10km to 100km size range, there maybe millions more of about 1km in size 26 are larger than 200km, the bigg ...
The Solar System - Dr. Hooda 6th Grade Earth Science
... to other planets in the solar system? S6E1c. Compare and contrast planets in terms of: size relative to earth; surface and atmospheric features; relative distance from the sun; ability to support life ...
... to other planets in the solar system? S6E1c. Compare and contrast planets in terms of: size relative to earth; surface and atmospheric features; relative distance from the sun; ability to support life ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.