Goals of the day Clickers Order of Magnitude Astronomy
... C. The image of the supernova dispersing will not reach us for another 2 million years. D. We will never see the supernova remnant because it has already dispersed. ...
... C. The image of the supernova dispersing will not reach us for another 2 million years. D. We will never see the supernova remnant because it has already dispersed. ...
Sections F and G
... called equipotential surfaces. For a single non-rotating star, equipotentials are spherical. For a single rotating star, centripetal acceleration causes the equipotentials to be ellipsoids (e.g. the shape of the Sun). For two stars in a binary system, there is also the gravitational attraction due t ...
... called equipotential surfaces. For a single non-rotating star, equipotentials are spherical. For a single rotating star, centripetal acceleration causes the equipotentials to be ellipsoids (e.g. the shape of the Sun). For two stars in a binary system, there is also the gravitational attraction due t ...
THE BIG BANG THEORY
... • Astronomers observe galaxies are all red shifted from Earth – What does this say about the galaxies in relation to Earth? • Therefore, all galaxies are moving away from earth • Therefore, the universe is expanding ...
... • Astronomers observe galaxies are all red shifted from Earth – What does this say about the galaxies in relation to Earth? • Therefore, all galaxies are moving away from earth • Therefore, the universe is expanding ...
astro 001.101 summer 2002 exam 2
... This effect is not observed (using only the naked eye); consequently the Greeks concluded that Earth does not orbit the Sun. However, the Greeks failed to realize that stars lie at very great distances. For the nearest star to the Sun, the angle is only ~ 1/1800o. The smallest angular separation t ...
... This effect is not observed (using only the naked eye); consequently the Greeks concluded that Earth does not orbit the Sun. However, the Greeks failed to realize that stars lie at very great distances. For the nearest star to the Sun, the angle is only ~ 1/1800o. The smallest angular separation t ...
The Origin of the Earth What`s New?
... the early Archean. Furthermore, the average Pb isotope compositions of the crust and mantle (or the combined bulk silicate Earth) plot close to the geochron determined by Patterson (1956) for the solar system. The geochron represents the line of equal age, corresponding to Pb isotope compositions of ...
... the early Archean. Furthermore, the average Pb isotope compositions of the crust and mantle (or the combined bulk silicate Earth) plot close to the geochron determined by Patterson (1956) for the solar system. The geochron represents the line of equal age, corresponding to Pb isotope compositions of ...
Asteroids and Comets
... because they are too faint to be seen directly and because their stable orbits do not bring them closer to the Sun The total number of comets within the sphere of influence of our Sun could therefore be on the order of ten trillion (1013)! Their total mass would be similar to that of 1000 Earths Com ...
... because they are too faint to be seen directly and because their stable orbits do not bring them closer to the Sun The total number of comets within the sphere of influence of our Sun could therefore be on the order of ten trillion (1013)! Their total mass would be similar to that of 1000 Earths Com ...
The Prospective Aspect of the Cosmogonic Models in Laozi and T
... gradually flattened, until it finally formed a stable system including a star with planets. ...
... gradually flattened, until it finally formed a stable system including a star with planets. ...
ASTR-100 - Jiri Brezina Teaching
... resisted by internal friction, which causes heating. This way, the rotational (and, if applicable orbiting) energy is consumed and the driving motions become slower. ...
... resisted by internal friction, which causes heating. This way, the rotational (and, if applicable orbiting) energy is consumed and the driving motions become slower. ...
The Early Evolution of the Atmospheres of Earth, Venus, and Mars
... Many of the most critical processes took place within the first 100-200 Myr of solar-system formation and were highly intertwined. Initial H/He envelopes (protoatmospheres) may have remained on planets from their formation during the protoplanetary disk phase, preventing rapid cooling and the format ...
... Many of the most critical processes took place within the first 100-200 Myr of solar-system formation and were highly intertwined. Initial H/He envelopes (protoatmospheres) may have remained on planets from their formation during the protoplanetary disk phase, preventing rapid cooling and the format ...
Space Systems - RPS Cloud Server
... appear to move across the night sky because of Earth’s rotation. They will construct and support an argument regarding why we see differences in the brightness of the sun compared to other stars. Finally, students will use evidence, data, and/or models to describe the gravitational force exerted by ...
... appear to move across the night sky because of Earth’s rotation. They will construct and support an argument regarding why we see differences in the brightness of the sun compared to other stars. Finally, students will use evidence, data, and/or models to describe the gravitational force exerted by ...
STONEHENGE
... WHEN AND HOW DID STONEHENGE BEGIN? For some 400 years beginning about 2950 BCE the site was little more than a simple circular earthwork, inside of which was a space about 85 metres or some 90 yards in diameter but at the centre of which there appears to have been a simple wooden structure or timber ...
... WHEN AND HOW DID STONEHENGE BEGIN? For some 400 years beginning about 2950 BCE the site was little more than a simple circular earthwork, inside of which was a space about 85 metres or some 90 yards in diameter but at the centre of which there appears to have been a simple wooden structure or timber ...
Starry Night Lab
... (including Earth), the sun, and the moon all lie roughly in this plane. From Earth, we see the ecliptic as an arcing line across the sky, along which the sun, moon, and planets travel. 1. Set the clock for tonight at 10 pm. What planets are visible, and where are they? [The "Find" option may help or ...
... (including Earth), the sun, and the moon all lie roughly in this plane. From Earth, we see the ecliptic as an arcing line across the sky, along which the sun, moon, and planets travel. 1. Set the clock for tonight at 10 pm. What planets are visible, and where are they? [The "Find" option may help or ...
The Sun, Moon, & Earth
... http://www.forcedgreen.com/wp-content/uploads/2009/11/sun.jpg http://media-cdn.tripadvisor.com/media/photos/00/1d/f3/53/sunrise-in-gulfshores.jpg http://www.kidzoneweather.com/images/seasons-1.png http://rlccbpl.files.wordpress.com/2008/02/feb29.jpg http://spiritualoasis.files.wordpress.com/2006/10/ ...
... http://www.forcedgreen.com/wp-content/uploads/2009/11/sun.jpg http://media-cdn.tripadvisor.com/media/photos/00/1d/f3/53/sunrise-in-gulfshores.jpg http://www.kidzoneweather.com/images/seasons-1.png http://rlccbpl.files.wordpress.com/2008/02/feb29.jpg http://spiritualoasis.files.wordpress.com/2006/10/ ...
Origin of Mountains and Primary Initiation of Submarine Canyons
... evidence towards unveiling the state of our planet in earlier times, and that the truth of the matter can only be reached by combining all of this evidence”. Equally important, I submit, is the necessity to discover mistaken understanding and to rethink considerations that were based upon erroneous ...
... evidence towards unveiling the state of our planet in earlier times, and that the truth of the matter can only be reached by combining all of this evidence”. Equally important, I submit, is the necessity to discover mistaken understanding and to rethink considerations that were based upon erroneous ...
Astronomy Jeopardy Astronomy jeopardy
... When massively large stars die with a great explosion and such great a force of gravity that anything falling into it, including e-m waves becomes trapped and light cannot ...
... When massively large stars die with a great explosion and such great a force of gravity that anything falling into it, including e-m waves becomes trapped and light cannot ...
V1003.HW5.2014 - Earth and Environmental Sciences
... is a variable star, with regular sunspot cycles roughly every 11 years and longer term cycles that were (partly) responsible for the Little Ice Age cool period between 1500-1900 AD. Using satellites, we’ve been able to measure solar variability for the last three solar cycles. a) If we consider the ...
... is a variable star, with regular sunspot cycles roughly every 11 years and longer term cycles that were (partly) responsible for the Little Ice Age cool period between 1500-1900 AD. Using satellites, we’ve been able to measure solar variability for the last three solar cycles. a) If we consider the ...
2014-2015 SCIENCE Instructional Curriculum Plan Grade: K
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
Chapter19
... the cycle begins anew. AGB stars have thick, cool dust shells around them that absorb their visible light and re-emit it in the infrared. The gas in the planetary nebula was shed from the star while it was an AGB star. The star must be hot in order to produce ultraviolet radiation, which can ionize ...
... the cycle begins anew. AGB stars have thick, cool dust shells around them that absorb their visible light and re-emit it in the infrared. The gas in the planetary nebula was shed from the star while it was an AGB star. The star must be hot in order to produce ultraviolet radiation, which can ionize ...
The hierarchical structure of the Universe (go from little to large)
... • Planetary nebulae (dying stars) • Supernova remnants (stars that blew up) • Diffuse nebulae (glowing interstellar gas) ...
... • Planetary nebulae (dying stars) • Supernova remnants (stars that blew up) • Diffuse nebulae (glowing interstellar gas) ...
PDF version - Caltech Astronomy
... What about understanding? What good was it to discover quasars or gamma-ray bursts if you didn’t understand the physical processes at work? Genuine astrophysical understanding required a completely different set of tools: theoretical tools. Isaac Newton’s discoveries of the laws of motion and gravit ...
... What about understanding? What good was it to discover quasars or gamma-ray bursts if you didn’t understand the physical processes at work? Genuine astrophysical understanding required a completely different set of tools: theoretical tools. Isaac Newton’s discoveries of the laws of motion and gravit ...
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.