Next: Planetary Geology Entering A New Phase of the Course Today
... • Requires that ALL material in the core/ mantle was once ...
... • Requires that ALL material in the core/ mantle was once ...
Unit 7: Astronomy
... planets orbit the Earth to one • in which the Earth and planets orbit the sun. • The “Big Bang” is a theory of how the universe began. • The sun is a medium-sized star located near the edge of a disk-shaped galaxy of stars (Milky Way), part of which can be seen as a glowing band of light that spans ...
... planets orbit the Earth to one • in which the Earth and planets orbit the sun. • The “Big Bang” is a theory of how the universe began. • The sun is a medium-sized star located near the edge of a disk-shaped galaxy of stars (Milky Way), part of which can be seen as a glowing band of light that spans ...
Ellipses, Parallax, and Retrograde Motion
... 2. How can you determine the latitude of Anchorage (or any place on Earth) using just your hands and a clear night sky? 3. Discuss the difference between what we see (apparent) and what is real (actual) with relation to retrograde motion or parallax. 4. Draw or describe a shape with an eccentricity ...
... 2. How can you determine the latitude of Anchorage (or any place on Earth) using just your hands and a clear night sky? 3. Discuss the difference between what we see (apparent) and what is real (actual) with relation to retrograde motion or parallax. 4. Draw or describe a shape with an eccentricity ...
Astronomy_Syllabus
... Late work: Late work will not be accepted. It is your responsibility to know when something is due, and to have it done by that time. Anyone who comes to me the day before the main lesson book is due and asks for an extension will not get it, barring exceptional circumstances. Exceptional circumstan ...
... Late work: Late work will not be accepted. It is your responsibility to know when something is due, and to have it done by that time. Anyone who comes to me the day before the main lesson book is due and asks for an extension will not get it, barring exceptional circumstances. Exceptional circumstan ...
Reader`s Theater Our Closest Star
... Is it any wonder the system is named after me? I am a star, your closest star. I may be millions of times closer to you than other stars, but I am still very far away. It would take a jet plane nineteen years to reach me. But, of course, no one can visit me. I am not solid like the Earth, so there i ...
... Is it any wonder the system is named after me? I am a star, your closest star. I may be millions of times closer to you than other stars, but I am still very far away. It would take a jet plane nineteen years to reach me. But, of course, no one can visit me. I am not solid like the Earth, so there i ...
neutron star - Adams State University
... A) the mass of the Sun B) 2 times the mass of the Sun C) 4 times the mass of the Sun D) 8 times the mass of the Sun E) 16 times the mass of the Sun ...
... A) the mass of the Sun B) 2 times the mass of the Sun C) 4 times the mass of the Sun D) 8 times the mass of the Sun E) 16 times the mass of the Sun ...
Size and Scale of the Universe
... 93,000,000,000 years. On the Oreo scale, this would equal about 1,020,000,000,000,000 miles (or a diameter of about 168 light years!). ...
... 93,000,000,000 years. On the Oreo scale, this would equal about 1,020,000,000,000,000 miles (or a diameter of about 168 light years!). ...
Day 3
... planetary positions. • Still could not detect stellar parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun). • Hired Kepler, who used Tycho's observations to discover the truth about planetary motion. Tycho Brahe (1546-1601) ...
... planetary positions. • Still could not detect stellar parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun). • Hired Kepler, who used Tycho's observations to discover the truth about planetary motion. Tycho Brahe (1546-1601) ...
A Short History of Astronomy
... supernatural explanations in preference to natural explanations. • The ability to mathematically predict a Cosmic event of such magnitude, propelled astronomers into the industry of astrology, where they were employed by the rich to cast horoscopes. (and the desire to keep the job or ones head , pro ...
... supernatural explanations in preference to natural explanations. • The ability to mathematically predict a Cosmic event of such magnitude, propelled astronomers into the industry of astrology, where they were employed by the rich to cast horoscopes. (and the desire to keep the job or ones head , pro ...
Small Bodies of the Solar System Transcript
... within the vast cocoon of dust and gas that gathered around the newly-formed Sun 5 billion years ago. Most of the material in the original cloud will have fallen to the centre, collapsing under its own gravity, where the gravitational energy released will have heated up the core until it reached suf ...
... within the vast cocoon of dust and gas that gathered around the newly-formed Sun 5 billion years ago. Most of the material in the original cloud will have fallen to the centre, collapsing under its own gravity, where the gravitational energy released will have heated up the core until it reached suf ...
CHAPTER 1
... 4. Phases of the Moon—the changing appearance of the Moon during its cycle—are caused by the relative positions of the Earth, Moon, and Sun. 5. The phases follow the sequence of waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third (or last) quarter, waning crescent, new M ...
... 4. Phases of the Moon—the changing appearance of the Moon during its cycle—are caused by the relative positions of the Earth, Moon, and Sun. 5. The phases follow the sequence of waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third (or last) quarter, waning crescent, new M ...
A stars
... The size and location of the HZ depends on the nature of the star The situation becomes even more extreme in the case of a red dwarf, such as Barnard's Star (M4: about 2,000 times less luminous than the Sun), the HZ of which would extend only between about 750,000 and 2 million km (0.02 to 0.06 AU) ...
... The size and location of the HZ depends on the nature of the star The situation becomes even more extreme in the case of a red dwarf, such as Barnard's Star (M4: about 2,000 times less luminous than the Sun), the HZ of which would extend only between about 750,000 and 2 million km (0.02 to 0.06 AU) ...
The Sky and its Motions
... celestial north pole traces out on the celestial sphere in the course of a precession cycle? ...
... celestial north pole traces out on the celestial sphere in the course of a precession cycle? ...
Chapter 10
... back to when they first condensed from the solar nebula • Some chondrules contain ancient dust grains that have survived from before the Solar System’s birth! ...
... back to when they first condensed from the solar nebula • Some chondrules contain ancient dust grains that have survived from before the Solar System’s birth! ...
the life cycle of stars
... • A main sequence star with a mass of more than about 10 Suns experiences a spectacular end. • It swells into a red supergiant with cooling, expanding outer layers. • Eventually its core collapses, causing a huge explosion known as a ...
... • A main sequence star with a mass of more than about 10 Suns experiences a spectacular end. • It swells into a red supergiant with cooling, expanding outer layers. • Eventually its core collapses, causing a huge explosion known as a ...
Solar
... • The Sun has enough fuel to last for another 5 billion years • At the end of it’s life it will have used up all its hydrogen • When there is no longer any source of heat to balance gravity its core will then collapse ...
... • The Sun has enough fuel to last for another 5 billion years • At the end of it’s life it will have used up all its hydrogen • When there is no longer any source of heat to balance gravity its core will then collapse ...
Geosystems-7th-Edition-Christopherson-Solution
... each chapter of Geosystems and the Geosystems Student Study Guide. The student is told: “after reading the chapter you should be able to”: • Distinguish among galaxies, stars, and planets, and locate Earth. • Overview the origin, formation, and development of Earth and the atmosphere and construct E ...
... each chapter of Geosystems and the Geosystems Student Study Guide. The student is told: “after reading the chapter you should be able to”: • Distinguish among galaxies, stars, and planets, and locate Earth. • Overview the origin, formation, and development of Earth and the atmosphere and construct E ...
Volume 2 (Issue 7), July 2013
... that quasars are among the most ancient objects known in the universe. The most distant quasars observed so far are over 10 billion light-years away. This means we are seeing them as they appeared 10 billion years ago. It is entirely possible that some or all of the quasars we see today may not even ...
... that quasars are among the most ancient objects known in the universe. The most distant quasars observed so far are over 10 billion light-years away. This means we are seeing them as they appeared 10 billion years ago. It is entirely possible that some or all of the quasars we see today may not even ...
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.