Death of Low Mass Stars 8 Solar Masses or less
... have a mass of 1 ton… that’s like the mass of an elephant!!!). • Shines from stored heat, no fusion occurs in the core… the star is officially dead :( • Usually, but not always, seen in the center of planetary nebulae. ...
... have a mass of 1 ton… that’s like the mass of an elephant!!!). • Shines from stored heat, no fusion occurs in the core… the star is officially dead :( • Usually, but not always, seen in the center of planetary nebulae. ...
Life Cycle of a Star
... The star’s mass is lost until it collapses into a _____________ dwarf, which will lose energy and become a ______________ dwarf. ...
... The star’s mass is lost until it collapses into a _____________ dwarf, which will lose energy and become a ______________ dwarf. ...
Practice Midterm 1
... 28. When we say that a planet has a highly eccentric orbit, we mean that: A) It is almost in a perfect circular orbit B) its orbit is an ellipse with the Sun at the center. C) in some parts of its orbit it is much closer to the Sun than in other parts. D) it has high escape velocity E) it is spirali ...
... 28. When we say that a planet has a highly eccentric orbit, we mean that: A) It is almost in a perfect circular orbit B) its orbit is an ellipse with the Sun at the center. C) in some parts of its orbit it is much closer to the Sun than in other parts. D) it has high escape velocity E) it is spirali ...
Chapter 8, Lesson 4, 2nd Packet, pdf
... Compare the development of a less-massive star with that of a more-massive star. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _______________ ...
... Compare the development of a less-massive star with that of a more-massive star. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _______________ ...
contents
... which consists of the crust and uppermost mantle of the planet. Earth’s lithosphere is broken up into many tectonic plates, which float on the soft, constantly moving rocks of the mantle. Beneath the mantle is Earth’s liquid outer core, which is made of iron and nickel. At the centre of Earth is the ...
... which consists of the crust and uppermost mantle of the planet. Earth’s lithosphere is broken up into many tectonic plates, which float on the soft, constantly moving rocks of the mantle. Beneath the mantle is Earth’s liquid outer core, which is made of iron and nickel. At the centre of Earth is the ...
PLANETARY MOTIONS
... were seven known planets in ancient times: Mercury, Venus, Mars, Jupiter, Saturn, the Sun, and the Moon. All other celestial objects were fixed stars and moved together - their positions with respect to one another did not change. Planetary motions seen against the fixed stars The Shadow Orrery take ...
... were seven known planets in ancient times: Mercury, Venus, Mars, Jupiter, Saturn, the Sun, and the Moon. All other celestial objects were fixed stars and moved together - their positions with respect to one another did not change. Planetary motions seen against the fixed stars The Shadow Orrery take ...
The Sun`s Energy Supply (PowerPoint version)
... Very Important Early On! This is indeed exactly how the stars form (relatively quickly!) from distended clouds of interstellar gas, heating up as they do so. But once a star becomes dense enough to be opaque (that is, heat and light inside it cannot readily escape), the contraction slows down enorm ...
... Very Important Early On! This is indeed exactly how the stars form (relatively quickly!) from distended clouds of interstellar gas, heating up as they do so. But once a star becomes dense enough to be opaque (that is, heat and light inside it cannot readily escape), the contraction slows down enorm ...
Mercury - High Point University
... Start by sketching it and then determining where it is after a sidereal day, etc. Note that you won’t be able to get an exact day using this method, but you can pin it down to a very small range of possible answers. Solution: See Figure 3. Venus moves 360◦ in 225 Earth days. This means it moves 360◦ ...
... Start by sketching it and then determining where it is after a sidereal day, etc. Note that you won’t be able to get an exact day using this method, but you can pin it down to a very small range of possible answers. Solution: See Figure 3. Venus moves 360◦ in 225 Earth days. This means it moves 360◦ ...
a. What do we mean by a light year?
... they represent are in the sky. We can imagine shrinking ourselves to a point at the center of the sphere and then marking the stars on the sphere as they are seen through the sphere. Could you do it all in one night? One month? How long would it take? No it takes at least one year to see all the sta ...
... they represent are in the sky. We can imagine shrinking ourselves to a point at the center of the sphere and then marking the stars on the sphere as they are seen through the sphere. Could you do it all in one night? One month? How long would it take? No it takes at least one year to see all the sta ...
Apparent size (apparent diameter)
... 1) The sun is an average star. 2) The Earth is just one small planet orbiting a typical star among billions in the universe. 3) Sunspots: a) are visible from earth. b) are cool, dark patches on the sun’s surface. c) occur when the sun’s magnetic field loops up and out of the solar surface cooling do ...
... 1) The sun is an average star. 2) The Earth is just one small planet orbiting a typical star among billions in the universe. 3) Sunspots: a) are visible from earth. b) are cool, dark patches on the sun’s surface. c) occur when the sun’s magnetic field loops up and out of the solar surface cooling do ...
nightwatch sheet june 2017 - National Museums Liverpool
... The longest day of the year, the Summer Solstice, occurs this month. It is a day of maximum daylight for us in the northern hemisphere but the shortest day of the year down-under. After today the nights will start to lengthen again! Only a few planets are visible this month. We start with the hellis ...
... The longest day of the year, the Summer Solstice, occurs this month. It is a day of maximum daylight for us in the northern hemisphere but the shortest day of the year down-under. After today the nights will start to lengthen again! Only a few planets are visible this month. We start with the hellis ...
Questions for this book (Word format)
... Use your own words. Copying directly from the book is illegal (plagiarism) and will be penalised. 1. When Eddington suggested in 1926 that stars were powered by hydrogen fusion, why did most physicists quite reasonably reject this suggestion? Explain the phenomenon, unknown in 1926, that allows hydr ...
... Use your own words. Copying directly from the book is illegal (plagiarism) and will be penalised. 1. When Eddington suggested in 1926 that stars were powered by hydrogen fusion, why did most physicists quite reasonably reject this suggestion? Explain the phenomenon, unknown in 1926, that allows hydr ...
Origins of the Universe
... • Planets are mostly round due to the effects of gravity • Over time, as the nebula spins, it flattens into a disk-like shape • Planets and other objects (e.g., asteroids) form in the flat plane of the disk – hence why the orbits of planets in our solar system are largely in the same plane – all rev ...
... • Planets are mostly round due to the effects of gravity • Over time, as the nebula spins, it flattens into a disk-like shape • Planets and other objects (e.g., asteroids) form in the flat plane of the disk – hence why the orbits of planets in our solar system are largely in the same plane – all rev ...
Powerpoint
... • random walk - photons (the packets of energy released during fusion) bounce around bumping into atoms and nuclei for 30,000-1,000,000* years until they finally wander out ...
... • random walk - photons (the packets of energy released during fusion) bounce around bumping into atoms and nuclei for 30,000-1,000,000* years until they finally wander out ...
Chapter 10
... – The shape of the Oort cloud is determined from observations of comet orbits • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends from Neptune’s orbit out to some unknown distance ...
... – The shape of the Oort cloud is determined from observations of comet orbits • Some comet orbits seem to come from a flatter, less remote region – the Kuiper belt, which extends from Neptune’s orbit out to some unknown distance ...
What do we see? Stars Sun Moon Planets How do we organize
... they change speed they exhibit retrograde motion ...
... they change speed they exhibit retrograde motion ...
Properties of the Planets
... The next series of slides are meant to help you visualize the effect of the vast distances of the Solar System by simulating, in a simple way, what sunrise would look like from each planet, taking into account its distance from the Sun. At the bottom of each slide appears the amount of solar energy ...
... The next series of slides are meant to help you visualize the effect of the vast distances of the Solar System by simulating, in a simple way, what sunrise would look like from each planet, taking into account its distance from the Sun. At the bottom of each slide appears the amount of solar energy ...
Space (Part 1)
... has cleared the area around its orbit of objects.” This photograph shows Pluto and its moon, Charon. Pluto’s orbit is surrounded by smaller objects which have not been cleared by its gravitational field. Pluto and the other ‘smaller’ planet-like objects such as Eris and Ceres have now been reclassif ...
... has cleared the area around its orbit of objects.” This photograph shows Pluto and its moon, Charon. Pluto’s orbit is surrounded by smaller objects which have not been cleared by its gravitational field. Pluto and the other ‘smaller’ planet-like objects such as Eris and Ceres have now been reclassif ...
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.