Neptune - Peterborough Astronomical Association
... retrograde motion, this peculiarity is one of the reasons astronomers think that it is a member of the Kuiper Belt which was gravitationally captured by Neptune. Like Earth’s Moon, Triton is tidally locked to Neptune. What that means is that the gravitational pull of Neptune has gradually slowed Tr ...
... retrograde motion, this peculiarity is one of the reasons astronomers think that it is a member of the Kuiper Belt which was gravitationally captured by Neptune. Like Earth’s Moon, Triton is tidally locked to Neptune. What that means is that the gravitational pull of Neptune has gradually slowed Tr ...
File
... Minor Members of the Solar System Today you will learn: 1. What other objects, besides the planets, orbit around the sun. ...
... Minor Members of the Solar System Today you will learn: 1. What other objects, besides the planets, orbit around the sun. ...
Outer Planets
... is tipped 47 degrees. •Its wind speeds up to 2200 kilometers per hour. •Neptune gives off 2.7 times more energy than it obtains from the sun. •Its temperature was once o measured at –214 C. ...
... is tipped 47 degrees. •Its wind speeds up to 2200 kilometers per hour. •Neptune gives off 2.7 times more energy than it obtains from the sun. •Its temperature was once o measured at –214 C. ...
Name: Notes – #30 Jupiter and Its Amazing Moons 1. Jupiter is
... 2. Jupiter is ______ AU from the Sun and it takes ______ years to complete one orbit. 3. Jupiter is ______ times more massive than all of the other planets put together. 4. Jupiter rotates about its axis in ________ hours. 5. Jupiter consists mostly of ________________ and _________________. 6. True ...
... 2. Jupiter is ______ AU from the Sun and it takes ______ years to complete one orbit. 3. Jupiter is ______ times more massive than all of the other planets put together. 4. Jupiter rotates about its axis in ________ hours. 5. Jupiter consists mostly of ________________ and _________________. 6. True ...
Lecture Summary (11/22)
... core temperature of 15 million K. Eventually the Sun will lose its ability to sustain itself by hydrogen fusion as helium nuclei build up in the core. With a drop in energy, the outward force cannot balance the inward force. Gravity causes collapse that heats the interior, and in a shell surrounding ...
... core temperature of 15 million K. Eventually the Sun will lose its ability to sustain itself by hydrogen fusion as helium nuclei build up in the core. With a drop in energy, the outward force cannot balance the inward force. Gravity causes collapse that heats the interior, and in a shell surrounding ...
The Sun*s
... The star is kept in a delicate balance between gravity trying to collapse it and radiation pushing it outwards. As the hydrogen runs out, the energy released from fusion decreases and the gravity causes the star to collapse. If the star is massive enough the core temperature increases until heli ...
... The star is kept in a delicate balance between gravity trying to collapse it and radiation pushing it outwards. As the hydrogen runs out, the energy released from fusion decreases and the gravity causes the star to collapse. If the star is massive enough the core temperature increases until heli ...
The Sun: Home Star
... • Key to solar-stellar connection • Close-up model for other stars • Local “lab” for testing ideas about the physics of stars • Energy source for most life on earth ...
... • Key to solar-stellar connection • Close-up model for other stars • Local “lab” for testing ideas about the physics of stars • Energy source for most life on earth ...
friends of the planetarium newsletter
... among astronomers for many years. It is one of the largest asteroids in the solar system and has a strange spectrum of reflected light that doesn't look quite like any other asteroid. This photo was taken at closest approach, just over 3000 km. When the opportunity presented itself for Rosetta to pa ...
... among astronomers for many years. It is one of the largest asteroids in the solar system and has a strange spectrum of reflected light that doesn't look quite like any other asteroid. This photo was taken at closest approach, just over 3000 km. When the opportunity presented itself for Rosetta to pa ...
Astronomy 1020 Exam 1 Review Questions
... use a telescope to study the cosmos? Why did these observations get this person in trouble with church authorities? 21. List and describe all of Newton’s contributions to astronomy and physics. 22. If two stars have the same diameter, yet one is twice as hot as the other, which one is brighter or ar ...
... use a telescope to study the cosmos? Why did these observations get this person in trouble with church authorities? 21. List and describe all of Newton’s contributions to astronomy and physics. 22. If two stars have the same diameter, yet one is twice as hot as the other, which one is brighter or ar ...
Document
... • “Three billion years ago, the Sun which lights our solar system was thirty percent less luminous than it is today. Mant people believe that if the Earth's atmosphere was the same then as it is today, the oceans would be frozen. But recently, Jeffrey Bada of the Scripps Institution of Oceanography ...
... • “Three billion years ago, the Sun which lights our solar system was thirty percent less luminous than it is today. Mant people believe that if the Earth's atmosphere was the same then as it is today, the oceans would be frozen. But recently, Jeffrey Bada of the Scripps Institution of Oceanography ...
Chapter Test A
... period is 72.4 hours. The new planet would not have seasons because its axis is not tilted. The planet has a retrograde rotation, so the sun would rise in the west instead of in the east, because the planet rotates west to east. Because most of these bodies have only a thin atmosphere to slow object ...
... period is 72.4 hours. The new planet would not have seasons because its axis is not tilted. The planet has a retrograde rotation, so the sun would rise in the west instead of in the east, because the planet rotates west to east. Because most of these bodies have only a thin atmosphere to slow object ...
The Origin of Our Solar System
... of the angular momentum in the solar system. – Angular momentum (re-stated in easier to understand form): the tendency of a rotating object to continue to rotate. – In fact, the sun rotates relatively slowly – having little angular momentum. – The planets rotate much faster and have greater angular ...
... of the angular momentum in the solar system. – Angular momentum (re-stated in easier to understand form): the tendency of a rotating object to continue to rotate. – In fact, the sun rotates relatively slowly – having little angular momentum. – The planets rotate much faster and have greater angular ...
STUDY QUESTIONS #10 The MILKY WAY GALAXY diameter face
... 9. Using the rotation curve above, astronomers have calculated a mass for the whole Galaxy, out to about 50,000 light-year radius where there are no more stars, to be about 2 × 1011 M , yet by measuring light at all wavelengths, they only measure one sixth of that mass (3 × 1010 M ). Using the orbit ...
... 9. Using the rotation curve above, astronomers have calculated a mass for the whole Galaxy, out to about 50,000 light-year radius where there are no more stars, to be about 2 × 1011 M , yet by measuring light at all wavelengths, they only measure one sixth of that mass (3 × 1010 M ). Using the orbit ...
science - TCDSB.org
... Each time the Earth rotates we have one day and one night. When we are on the sun side of the earth, we have daylight. When we rotate away from the sun, we have night. ...
... Each time the Earth rotates we have one day and one night. When we are on the sun side of the earth, we have daylight. When we rotate away from the sun, we have night. ...
Life Cycle of Our Sun
... About 4.6 billion years ago a great swirl of gas and dust some 15 billion miles across in this location in space and began to condense forming our Sun. Virtually 99.9 percent of the mass of our Solar System is the Sun. Our Sun has lived almost 5 billion years of its life and will lived approximat ...
... About 4.6 billion years ago a great swirl of gas and dust some 15 billion miles across in this location in space and began to condense forming our Sun. Virtually 99.9 percent of the mass of our Solar System is the Sun. Our Sun has lived almost 5 billion years of its life and will lived approximat ...
Extrasolar Planets, Lebo, 8-1
... Pegasi • They had lots of archival data from searches for Jupiter-type planets (periods >10 years, so they were still “in progress”) • No one even thought to look for short-period MASSIVE planets (why would they be easier?) • Found many “Hot Jupiters” – most extra-solar planets known today are Hot J ...
... Pegasi • They had lots of archival data from searches for Jupiter-type planets (periods >10 years, so they were still “in progress”) • No one even thought to look for short-period MASSIVE planets (why would they be easier?) • Found many “Hot Jupiters” – most extra-solar planets known today are Hot J ...
hw1
... What is the difference between our solar system, our galaxy and the universe? Our solar system consists of the sun (a star), nine planets and various other heavenly bodies like satellites (e.g. moon), comets and asteroids. We are part of the Milky Way galaxy. It is a spiral galaxy, about 75,000 ligh ...
... What is the difference between our solar system, our galaxy and the universe? Our solar system consists of the sun (a star), nine planets and various other heavenly bodies like satellites (e.g. moon), comets and asteroids. We are part of the Milky Way galaxy. It is a spiral galaxy, about 75,000 ligh ...
Some Moons of Gas Giants
... Each giant planet has a system of moons. Six of the moons are larger than Pluto. Their features are formed by the same processes that shape the terrestrial planets. Saturn’s largest moon, Titan, has a dense atmosphere of nitrogen, as Earth does, although a haze hides Titan’s surface. Neptune’s large ...
... Each giant planet has a system of moons. Six of the moons are larger than Pluto. Their features are formed by the same processes that shape the terrestrial planets. Saturn’s largest moon, Titan, has a dense atmosphere of nitrogen, as Earth does, although a haze hides Titan’s surface. Neptune’s large ...
Understanding the Sun
... Understanding the Sun Our life here on Earth is entirely dependent on the Sun. But although we have been observing the Sun’s passage across the sky for millennia, there are many things about it we still don’t understand. Amongst the hundreds of billions of stars that make up the Milky Way Galaxy, th ...
... Understanding the Sun Our life here on Earth is entirely dependent on the Sun. But although we have been observing the Sun’s passage across the sky for millennia, there are many things about it we still don’t understand. Amongst the hundreds of billions of stars that make up the Milky Way Galaxy, th ...
s*t*a*r chart - Ontario Science Centre
... shifts the entire sky. This is the same motion that swings the Sun on its daily eastto-west trek. The rotational hub is Polaris, the North Star, located almost exactly above the Earth’s North Pole. Everything majestically marches counter-clockwise around it, a motion that becomes evident after about ...
... shifts the entire sky. This is the same motion that swings the Sun on its daily eastto-west trek. The rotational hub is Polaris, the North Star, located almost exactly above the Earth’s North Pole. Everything majestically marches counter-clockwise around it, a motion that becomes evident after about ...
![geol_311_solar_system[1].](http://s1.studyres.com/store/data/008593220_1-b17fe7815e59e24abc5328dac28d28d9-300x300.png)
geol_311_solar_system[1].
... 13.7 billion years ago (13,700,000,000 yrs) Explosion so powerful that space itself was propelled outwards almost instantaneously 200 Million years later, the first stars formed Universe is still expanding today ...
... 13.7 billion years ago (13,700,000,000 yrs) Explosion so powerful that space itself was propelled outwards almost instantaneously 200 Million years later, the first stars formed Universe is still expanding today ...
Age of the Earth III - PowerPoint Lecture Notes
... Radiometric Dating of Meteorites Meteorites have been found to be about 4.4 to 4.6 billion years old. Since these meteorites are thought to be representative samples of material that formed the early solar system, the earth is now believed to be about 4.4 to 4.6 billion years old. ...
... Radiometric Dating of Meteorites Meteorites have been found to be about 4.4 to 4.6 billion years old. Since these meteorites are thought to be representative samples of material that formed the early solar system, the earth is now believed to be about 4.4 to 4.6 billion years old. ...
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.