Theories of Cosmic Evolution - DigitalCommons@University of
... that all their orbits were centred at the sun. The second great name is that of Copernicus, with whom again we must associate others, such as Galileo; but I doubt whether they deserve our praise quite as much as the men who, centuries earlier, made the Copernican theory possible. Let us not make the ...
... that all their orbits were centred at the sun. The second great name is that of Copernicus, with whom again we must associate others, such as Galileo; but I doubt whether they deserve our praise quite as much as the men who, centuries earlier, made the Copernican theory possible. Let us not make the ...
July 2013 - Joliet Junior College
... below Arcturus and to the left of another bright star -Spica. On July 16th the moon will be close below Saturn. Mercury, Jupiter and Mars all rise before the sun and are in the early morning sky. On July 22nd, Jupiter will be within one degree of Mars. The pair will rise at 3:45 am. Earth will be at ...
... below Arcturus and to the left of another bright star -Spica. On July 16th the moon will be close below Saturn. Mercury, Jupiter and Mars all rise before the sun and are in the early morning sky. On July 22nd, Jupiter will be within one degree of Mars. The pair will rise at 3:45 am. Earth will be at ...
Integrative Studies 410 Our Place in the Universe
... the stars by sketching the position and the shape of the moon and the bright stars in the sky. Document changes as the days go by. • Time: Once you know how to do it, this takes several minutes per observation. • Commitment: Do this over several, not necessarily consecutive days, exact time does not ...
... the stars by sketching the position and the shape of the moon and the bright stars in the sky. Document changes as the days go by. • Time: Once you know how to do it, this takes several minutes per observation. • Commitment: Do this over several, not necessarily consecutive days, exact time does not ...
Star and Sun Properties
... Day 1: What Are Stars? A star is a large celestial body that is composed of hot gas and that emits light; the sun is a typical star • The Sun, our closest star, is 93 million miles from Earth. • The next closest star is 4.3 lighter years away. • By mass, the Sun is 71 % Hydrogen, 27% helium and t ...
... Day 1: What Are Stars? A star is a large celestial body that is composed of hot gas and that emits light; the sun is a typical star • The Sun, our closest star, is 93 million miles from Earth. • The next closest star is 4.3 lighter years away. • By mass, the Sun is 71 % Hydrogen, 27% helium and t ...
Planets Beyond the Solar System
... Questions to consider… •A planet transits in front of a star. As it does, the observed brightness of the star dims by a factor of 0.002. Approximating the planet and the star as circles, and given that the radius of the star is 400,000 km, what is the radius of the planet (in km)? Compare this to t ...
... Questions to consider… •A planet transits in front of a star. As it does, the observed brightness of the star dims by a factor of 0.002. Approximating the planet and the star as circles, and given that the radius of the star is 400,000 km, what is the radius of the planet (in km)? Compare this to t ...
The Gravitational Assist
... When a spacecraft flies past a much more massive body—for example a planet (but it can be a moon as well), the planet acts on the spacecraft via its gravitational force and changes the spacecraft’s velocity relative to the Sun. The velocity is a vector so the change can be in direction and also in m ...
... When a spacecraft flies past a much more massive body—for example a planet (but it can be a moon as well), the planet acts on the spacecraft via its gravitational force and changes the spacecraft’s velocity relative to the Sun. The velocity is a vector so the change can be in direction and also in m ...
Astro 18 - Planets and Planetary Systems
... This Homework is largely based on Chapter 4 of Bennett. Organization of this homework assignment: Part 1 – Questions and problems that should be answered by everyone. Part 2 – Each student should choose to answer either an algebra-based question or a calculusbased question. Both will be valued equal ...
... This Homework is largely based on Chapter 4 of Bennett. Organization of this homework assignment: Part 1 – Questions and problems that should be answered by everyone. Part 2 – Each student should choose to answer either an algebra-based question or a calculusbased question. Both will be valued equal ...
Slide 1
... The Planetary Nebula (show) Glowing gaseous shrouds shed by dying sun-like stars trying to stabilize as they run out of nuclear fuel.. Typically 1,000 times the size of our solar system These Ten have names like Owl, the Cat's Eye, the Ghost of Jupiter, Ring. This glorious final phase in the life of ...
... The Planetary Nebula (show) Glowing gaseous shrouds shed by dying sun-like stars trying to stabilize as they run out of nuclear fuel.. Typically 1,000 times the size of our solar system These Ten have names like Owl, the Cat's Eye, the Ghost of Jupiter, Ring. This glorious final phase in the life of ...
Astro 18-- Planets and Planetary Systems – Fall 2014 Homework 2
... This Homework is largely based on Chapter 4 of Bennett. Organization of this homework assignment: Part 1 – Questions and problems that should be answered by everyone. Part 2 – Each student should choose to answer either an algebra-based question or a calculusbased question. Both will be valued equal ...
... This Homework is largely based on Chapter 4 of Bennett. Organization of this homework assignment: Part 1 – Questions and problems that should be answered by everyone. Part 2 – Each student should choose to answer either an algebra-based question or a calculusbased question. Both will be valued equal ...
The Sun, Goodman
... the inner core, atoms can retain some electrons. This causes the gas to become more and more opaque to radiation. The energy must still get out, but since the radiation is blocked, convection begins and carries the energy away to the surface. This takes about 10 days to reach the photosphere. • Conv ...
... the inner core, atoms can retain some electrons. This causes the gas to become more and more opaque to radiation. The energy must still get out, but since the radiation is blocked, convection begins and carries the energy away to the surface. This takes about 10 days to reach the photosphere. • Conv ...
ASTR 200 : Lecture 15 Ensemble Properties of Stars
... Gas Cloud → Main Sequence → ??? • So, a large cloud (1000s to ~million solar masses) gets cold enough that many cores collapse into stars, giving a cluster • Each star clears gas disk away, but the cluster as a whole also blows out all the remaining interstellar gas, shutting down star formation • ...
... Gas Cloud → Main Sequence → ??? • So, a large cloud (1000s to ~million solar masses) gets cold enough that many cores collapse into stars, giving a cluster • Each star clears gas disk away, but the cluster as a whole also blows out all the remaining interstellar gas, shutting down star formation • ...
Uniqueness of the Earth, Lebo, 7-30
... Must be near, but not in, a spiral arm. We are at a corotation point far from our galactic center. Note: At the co-rotation point the Sun remains stationary and out of a spiral arm. Most all stars in the Milky Way are in the central bulge, a globular cluster or a spiral arm. In each of these locatio ...
... Must be near, but not in, a spiral arm. We are at a corotation point far from our galactic center. Note: At the co-rotation point the Sun remains stationary and out of a spiral arm. Most all stars in the Milky Way are in the central bulge, a globular cluster or a spiral arm. In each of these locatio ...
Lesson 37 questions – Gravitational Field - science
... Explain why the stars must be diametrically opposite to travel in the circular orbit. ……For circular motion there must be centripetal force ……This force is toward the centre of the circle – in this case the attraction due to gravity and so must be along the diameter of the circle making the planets ...
... Explain why the stars must be diametrically opposite to travel in the circular orbit. ……For circular motion there must be centripetal force ……This force is toward the centre of the circle – in this case the attraction due to gravity and so must be along the diameter of the circle making the planets ...
File
... Galaxies will collide, creating a high-energy, high-density mass – the opposite of the big bang. ...
... Galaxies will collide, creating a high-energy, high-density mass – the opposite of the big bang. ...
What is a terrestrial planet?
... possible example, which formed close to our Sun and has a metallic core equal to 60–70% of its planetary mass. Coreless planets are another theoretical type of terrestrial planet, one that consists of silicate rock but has no metallic core. In other words, coreless planets are the opposite of an iro ...
... possible example, which formed close to our Sun and has a metallic core equal to 60–70% of its planetary mass. Coreless planets are another theoretical type of terrestrial planet, one that consists of silicate rock but has no metallic core. In other words, coreless planets are the opposite of an iro ...
Uniqueness of the Earth, Lebo, 7-30
... Must be near, but not in, a spiral arm. We are at a corotation point far from our galactic center. Note: At the co-rotation point the Sun remains stationary and out of a spiral arm. Most all stars in the Milky Way are in the central bulge, a globular cluster or a spiral arm. In each of these locatio ...
... Must be near, but not in, a spiral arm. We are at a corotation point far from our galactic center. Note: At the co-rotation point the Sun remains stationary and out of a spiral arm. Most all stars in the Milky Way are in the central bulge, a globular cluster or a spiral arm. In each of these locatio ...
Where is the Solar System in the Universe?
... • The distance from the sun to the center is about 30,000 light years. • All objects in the Milky Way rotate around the center, and it would take the sun and our solar system about 240 million years to make one trip around the center of the galaxy. ...
... • The distance from the sun to the center is about 30,000 light years. • All objects in the Milky Way rotate around the center, and it would take the sun and our solar system about 240 million years to make one trip around the center of the galaxy. ...
1 month - Otterbein
... (you should be able to get to within a second or so) • Need 4–6 measurements, best if spread out with a few days between each measurement • Ask if you have questions about the error analysis! ...
... (you should be able to get to within a second or so) • Need 4–6 measurements, best if spread out with a few days between each measurement • Ask if you have questions about the error analysis! ...
Lesson Plan
... solar system they will use pencil, paper, and calculators to calculate the radius, diameter, and circumference of the planets’ orbits. The students will create a scale model on the paper provided. (They will have to tape paper together to create a layout that is large enough.) ...
... solar system they will use pencil, paper, and calculators to calculate the radius, diameter, and circumference of the planets’ orbits. The students will create a scale model on the paper provided. (They will have to tape paper together to create a layout that is large enough.) ...
Star Life Cycle - GSHS Mrs. Francomb
... • After millions to billions of years, depending on their initial masses, stars run out of their main fuel - hydrogen. • Without the outward pressure generated from these reactions to counteract the force of gravity, the outer layers of the star begin to collapse inward toward the core. • Just as du ...
... • After millions to billions of years, depending on their initial masses, stars run out of their main fuel - hydrogen. • Without the outward pressure generated from these reactions to counteract the force of gravity, the outer layers of the star begin to collapse inward toward the core. • Just as du ...
My planet project
... orbits in. Except for Mercury's inclination of 7 degrees, all the other planets orbit more closely to the ecliptic. Pluto’s average orbital speed is a slow 4.7kms per second. ...
... orbits in. Except for Mercury's inclination of 7 degrees, all the other planets orbit more closely to the ecliptic. Pluto’s average orbital speed is a slow 4.7kms per second. ...
Ramin Javadi and Felix Schrader
... irrational ratios of the angular velocities in phase space the orbits stay stable. ...
... irrational ratios of the angular velocities in phase space the orbits stay stable. ...
CHAPTER 2 NOTES (STARS AND GALAXIES)
... where hydrogen changes to helium in nuclear fusion 3 atmosphere layers- 1. corona- outer most 2. chromosphere- middle layer 3. photosphere- inner most layer Solar storms: prominences- arches or loops of gas solar flares- bright bursts of light on the sun’s surface solar wind- continuous stream of hi ...
... where hydrogen changes to helium in nuclear fusion 3 atmosphere layers- 1. corona- outer most 2. chromosphere- middle layer 3. photosphere- inner most layer Solar storms: prominences- arches or loops of gas solar flares- bright bursts of light on the sun’s surface solar wind- continuous stream of hi ...
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.