New Worlds on the Horizon: Earth-Sized Planets Close to Other
... instruments, on the ground and in space, will discover still smaller planets. These worlds will also be on close orbits, many will be much hotter than Earth, and some may have very different compositions. All will help us understand how planets form and the propensity for that process to yield plane ...
... instruments, on the ground and in space, will discover still smaller planets. These worlds will also be on close orbits, many will be much hotter than Earth, and some may have very different compositions. All will help us understand how planets form and the propensity for that process to yield plane ...
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. ...
SOLAR PHYSICS
... Since hydrogen atoms have been ionized only the heavier trace elements like iron and calcium are able to retain a few of their electrons in this intense heat It is emission from these elements that produce the color associated with the emission line corona http://science.msfc.nasa.gov/ssl/pad/so ...
... Since hydrogen atoms have been ionized only the heavier trace elements like iron and calcium are able to retain a few of their electrons in this intense heat It is emission from these elements that produce the color associated with the emission line corona http://science.msfc.nasa.gov/ssl/pad/so ...
Law of Universal Gravitation
... follows an inverse-square law • The greater the distance from Earth’s center, the less an object will weigh • You may weigh 300N at sea level, but only 299N at the top of Mount Everest ...
... follows an inverse-square law • The greater the distance from Earth’s center, the less an object will weigh • You may weigh 300N at sea level, but only 299N at the top of Mount Everest ...
Complete the “Assess Your Understanding” including
... Since the numbers astronomers use can be very _________________ or very _________________, they use ________________________________ to describe sizes and distances in the universe. They use a unit called the _________________ to measure distances between the __________________. Complete the “summar ...
... Since the numbers astronomers use can be very _________________ or very _________________, they use ________________________________ to describe sizes and distances in the universe. They use a unit called the _________________ to measure distances between the __________________. Complete the “summar ...
ISM and star formation
... Given a cloud that will collapse, goes through several stages before stars form. Remember, the cloud's mass is 103 - 106 MSun, and is 10's of pc across. Will form clusters of stars, in different places at different times. ...
... Given a cloud that will collapse, goes through several stages before stars form. Remember, the cloud's mass is 103 - 106 MSun, and is 10's of pc across. Will form clusters of stars, in different places at different times. ...
Friday, Oct. 10
... You judge the distance to objects (depth perception) from the fact that your two eyes view an object from two different locations, so have to look in different directions to look at an object. The different direction to an object from different positions is called parallax. Astronomers use the chang ...
... You judge the distance to objects (depth perception) from the fact that your two eyes view an object from two different locations, so have to look in different directions to look at an object. The different direction to an object from different positions is called parallax. Astronomers use the chang ...
document
... C) most of Jupiter's mass is gas and we cannot see gas. D) Jupiter is so far from Earth and Venus is much closer. 2) Stars appear as small points of light in the sky because A) they are so much dimmer than the sun. B) they are so much smaller than the sun. C) their light is lessened by our atmospher ...
... C) most of Jupiter's mass is gas and we cannot see gas. D) Jupiter is so far from Earth and Venus is much closer. 2) Stars appear as small points of light in the sky because A) they are so much dimmer than the sun. B) they are so much smaller than the sun. C) their light is lessened by our atmospher ...
Models of dynamical phenomena for certain moons in the solar
... close, satellites rotate with the same angular velocity, and far rotation is gravitational according to Kepler’s law. In between, there are regions, e.g. a so-called Rocheregion, where other forces act, that may cause objects to disintegrate, and create gaps in planetary rings. Outside the Roche lim ...
... close, satellites rotate with the same angular velocity, and far rotation is gravitational according to Kepler’s law. In between, there are regions, e.g. a so-called Rocheregion, where other forces act, that may cause objects to disintegrate, and create gaps in planetary rings. Outside the Roche lim ...
12 Comets, Kuiper Belt Objects, and Pluto
... 68.4 kms−1 . The position of the nucleus using Earth-based observations was known to no better than ±400 km, and so instead of relying on Earth-based observations for lastminute corrections to Giotto’s trajectory, a very successful collaboration between the Vega and Giotto missions, called the “Path ...
... 68.4 kms−1 . The position of the nucleus using Earth-based observations was known to no better than ±400 km, and so instead of relying on Earth-based observations for lastminute corrections to Giotto’s trajectory, a very successful collaboration between the Vega and Giotto missions, called the “Path ...
Gravity Kepler`s Laws - historical remarks - UW
... Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astronomy. They also provided one of the foundations for Isaac Newton's theory of universal gravitation. During his career, Kepler was a mathematics teacher at a seminary school in Graz, Austria, an assistant to astronomer Tycho Brahe, the ...
... Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astronomy. They also provided one of the foundations for Isaac Newton's theory of universal gravitation. During his career, Kepler was a mathematics teacher at a seminary school in Graz, Austria, an assistant to astronomer Tycho Brahe, the ...
Understanding Planetary Motion
... around the Sun a near star will seem to shift back and forth across a backdrop of distant stars. For example in July the near star seems to align with the right-most distant star while in December it is aligned with the left-most ...
... around the Sun a near star will seem to shift back and forth across a backdrop of distant stars. For example in July the near star seems to align with the right-most distant star while in December it is aligned with the left-most ...
Lecture17-ASTA01
... • The sizes of the newly discovered planets range from 1.5 times the size of Earth to large Jupiter-sized worlds. • Spectral analyses of trails of smaller planets show traces of silicates (building blocks of rocks), ice, and water. • The Spitzer infrared telescope, which prior to the Kepler mission ...
... • The sizes of the newly discovered planets range from 1.5 times the size of Earth to large Jupiter-sized worlds. • Spectral analyses of trails of smaller planets show traces of silicates (building blocks of rocks), ice, and water. • The Spitzer infrared telescope, which prior to the Kepler mission ...
Lecture (Powerpoint)
... when they have burned all the way to iron in the core. New ash from burning continues to pile onto iron core until pressure cannot support it any more ...
... when they have burned all the way to iron in the core. New ash from burning continues to pile onto iron core until pressure cannot support it any more ...
ISP 205: Visions of the Universe
... in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice ...
... in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice ...
Women`s Club Hockey team > places second at NEWCHA finals
... however, is that Sedna is in a other force as they were behighly unusual orbit a long el- ing flung out of the solar syslipse that, at its furthest, is tem. Sedna's odd orbit and inmore than 900 times as far credible distance from the sun from the sun as Earth. The supports the possibility that it a ...
... however, is that Sedna is in a other force as they were behighly unusual orbit a long el- ing flung out of the solar syslipse that, at its furthest, is tem. Sedna's odd orbit and inmore than 900 times as far credible distance from the sun from the sun as Earth. The supports the possibility that it a ...
More on Stars and the Sky
... objects appear stationary. Why? What is the typical parallax of a nearby star? Why is it not possible to measure the parallax better than 0.01” from ground based instruments, but can be done from space? What is the precession of the Earth. Which of the following would change due to precession celest ...
... objects appear stationary. Why? What is the typical parallax of a nearby star? Why is it not possible to measure the parallax better than 0.01” from ground based instruments, but can be done from space? What is the precession of the Earth. Which of the following would change due to precession celest ...
12_Testbank
... wavelengths. A highly reflective asteroid does not absorb much sunlight and is cooler than a darker asteroid. It will therefore shine less brightly at infrared wavelengths, relative to its visible brightness, than the dark asteroid. Once the reflectivity and size are known, the size can be determine ...
... wavelengths. A highly reflective asteroid does not absorb much sunlight and is cooler than a darker asteroid. It will therefore shine less brightly at infrared wavelengths, relative to its visible brightness, than the dark asteroid. Once the reflectivity and size are known, the size can be determine ...
File
... Identify the celestial object in our solar system that has a period of rotation that is most similar to the period of rotation of Earth's Moon. Base your answers to questions 76 through 78 on the data table below and on your knowledge of Earth science. The data table shows five galaxies, A through E ...
... Identify the celestial object in our solar system that has a period of rotation that is most similar to the period of rotation of Earth's Moon. Base your answers to questions 76 through 78 on the data table below and on your knowledge of Earth science. The data table shows five galaxies, A through E ...
international year of astronomy the turbulent sun
... condenses into the regions of higher density and lower temperature, and flow gradually downward towards the chromosphere along the magnetic field lines, in a very graceful shape and this activity is referred as Prominence and appears as dark filaments on the solar disc (Fig.4). This high-density mat ...
... condenses into the regions of higher density and lower temperature, and flow gradually downward towards the chromosphere along the magnetic field lines, in a very graceful shape and this activity is referred as Prominence and appears as dark filaments on the solar disc (Fig.4). This high-density mat ...
Distant future of the Sun and Earth revisited
... for details, see e.g. Cox et al. 2004, Betts et al. 2004) which suggest that, on the century timescale, the inclusion of biospheric processes in climate models actually leads to an increase in carbon dioxide emissions, partly through a feedback that starts to dominate as vegetation dies back. In any ...
... for details, see e.g. Cox et al. 2004, Betts et al. 2004) which suggest that, on the century timescale, the inclusion of biospheric processes in climate models actually leads to an increase in carbon dioxide emissions, partly through a feedback that starts to dominate as vegetation dies back. In any ...
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.