Slide 1
... information is written at all levels of understanding. I recommend to read them all, a lot. Our universe is a very complicated and very huge place. We are a very, very, very small part in the grand scope of things. You need to have a very solid understanding of the major principles of our universe t ...
... information is written at all levels of understanding. I recommend to read them all, a lot. Our universe is a very complicated and very huge place. We are a very, very, very small part in the grand scope of things. You need to have a very solid understanding of the major principles of our universe t ...
A R T I C L E S
... sun, nine planets and their thirty-five satellites, numerous comets, thousands of asteroids, plus countless meteoroids. Ninety-seven percent of the solar system’s mass is located in the sun, a seething caldron of largely ionized hydrogen. Nearest to the sun revolve the four small “inner” or “terrest ...
... sun, nine planets and their thirty-five satellites, numerous comets, thousands of asteroids, plus countless meteoroids. Ninety-seven percent of the solar system’s mass is located in the sun, a seething caldron of largely ionized hydrogen. Nearest to the sun revolve the four small “inner” or “terrest ...
14 Things You Didn`t Know About How the Sun Will Die
... 6. The dying star isn't completely dead yet, however. Gravity pushes shells of hydrogen and helium to densities where nuclear fusion can begin, and they are ignited, albeit for a short time. When this happens with the Sun, it will briefly be 2,100 times brighter than we see it now. 7. Some 7 or 8 bi ...
... 6. The dying star isn't completely dead yet, however. Gravity pushes shells of hydrogen and helium to densities where nuclear fusion can begin, and they are ignited, albeit for a short time. When this happens with the Sun, it will briefly be 2,100 times brighter than we see it now. 7. Some 7 or 8 bi ...
End of the line for a star like ours
... end of the Sun’s life, carbon will be brought to the surface by the more energetic convection currents. This will be expelled with the solar wind; as the gases drift away from the Sun, they will begin to cool and condense into carbon dust grains.) 3. What do you think will happen to the Earth and ot ...
... end of the Sun’s life, carbon will be brought to the surface by the more energetic convection currents. This will be expelled with the solar wind; as the gases drift away from the Sun, they will begin to cool and condense into carbon dust grains.) 3. What do you think will happen to the Earth and ot ...
Life on hot Jupiters
... spectra were available belonged in our own solar system. The planets in the Spitzer studies orbit stars that are so far away, they are too faint to be seen with the naked eye. That means both planets are at least about a million times farther away from us than Jupiter. In the future, astronomers hop ...
... spectra were available belonged in our own solar system. The planets in the Spitzer studies orbit stars that are so far away, they are too faint to be seen with the naked eye. That means both planets are at least about a million times farther away from us than Jupiter. In the future, astronomers hop ...
pptx
... travel through the entire Milky Way. They also require the least energy to transmit because they have low energy. The atmosphere is transparent to radio waves. As a result, we can easily receive radio signals from space, and our transmissions escape into space as well. ...
... travel through the entire Milky Way. They also require the least energy to transmit because they have low energy. The atmosphere is transparent to radio waves. As a result, we can easily receive radio signals from space, and our transmissions escape into space as well. ...
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 ...
Comets
... Early in the solar system’s history, there were far more comets in the inner solar system than there are today, perhaps 1000 Hale-Bopps would have been present at any given time. During this era, the Earth was struck by large ...
... Early in the solar system’s history, there were far more comets in the inner solar system than there are today, perhaps 1000 Hale-Bopps would have been present at any given time. During this era, the Earth was struck by large ...
Test 3
... 23) Suppose you have two stars tugging on each other with a force of 10 38 Newtons of force. Now you double the distance between them. What is the new force? a) ¼ × 1038 b) ½ × 1038 c) 2 × 1038 d) 4 × 1038 24) A planet moves faster along its orbit a) when near the sun b) when far from the sun c) at ...
... 23) Suppose you have two stars tugging on each other with a force of 10 38 Newtons of force. Now you double the distance between them. What is the new force? a) ¼ × 1038 b) ½ × 1038 c) 2 × 1038 d) 4 × 1038 24) A planet moves faster along its orbit a) when near the sun b) when far from the sun c) at ...
Indirect Observation Method - Portal do Professor
... What is the Sun? If it is a star, why is it so much brighter than those we see during the night? If the Sun is so much brighter than the Moon, why do these two bodies seem to be the same size when observed from the Earth (this fact is even more evident during total solar eclipses when the new Moon c ...
... What is the Sun? If it is a star, why is it so much brighter than those we see during the night? If the Sun is so much brighter than the Moon, why do these two bodies seem to be the same size when observed from the Earth (this fact is even more evident during total solar eclipses when the new Moon c ...
Solutions
... (a) Will the rate at which the Sun converts some of its mass to energy be higher or lower when it is a red giant as compared to now? Why? (b) Do you expect that the pressure near the surface, but inside the Sun, will be higher when the Sun is a red giant than it is now? Why? (c) Do you expect the so ...
... (a) Will the rate at which the Sun converts some of its mass to energy be higher or lower when it is a red giant as compared to now? Why? (b) Do you expect that the pressure near the surface, but inside the Sun, will be higher when the Sun is a red giant than it is now? Why? (c) Do you expect the so ...
Class 8 - ruf.rice.edu
... a = semi-major axis b = semi-minor axis c = distance from center to focus ...
... a = semi-major axis b = semi-minor axis c = distance from center to focus ...
Prominences in H alpha and He II Spectrum of the Sun
... but typically possess temperature hundreds of times lower and densities hundreds to thousands of times higher than the corona. They are created for about a day but can last for weeks and even months. During this time they constantly change its length, thickness and shape. Prominences may reach hundr ...
... but typically possess temperature hundreds of times lower and densities hundreds to thousands of times higher than the corona. They are created for about a day but can last for weeks and even months. During this time they constantly change its length, thickness and shape. Prominences may reach hundr ...
Chapter 25 PowerPoint
... The light hitting the earth right now is 30 thousand years old. The energy in the sunlight we see today started out in the core of the Sun 30,000 years ago – it spent most of this time passing through the dense atoms that make the sun and just 8 minutes to reach us once it had left the Sun! The temp ...
... The light hitting the earth right now is 30 thousand years old. The energy in the sunlight we see today started out in the core of the Sun 30,000 years ago – it spent most of this time passing through the dense atoms that make the sun and just 8 minutes to reach us once it had left the Sun! The temp ...
PLANET VISIBILITY Appearance of the planets
... appearance. Twinkling is caused by turbulence in the atmosphere which has a greater effect on the light coming from point sources (stars) than on the light from much closer planets which are not point sources. Another pointer to identifying planets is that they are usually one of the brightest of th ...
... appearance. Twinkling is caused by turbulence in the atmosphere which has a greater effect on the light coming from point sources (stars) than on the light from much closer planets which are not point sources. Another pointer to identifying planets is that they are usually one of the brightest of th ...
Our Star, the Sun - Solar Physics and Space Weather
... Active Sun: Coronal Mass Ejections • A large scale eruption of coronal material and magnetic field. It is ejected into space at high speed. It impacts the Earth a few days later if at the right direction. ...
... Active Sun: Coronal Mass Ejections • A large scale eruption of coronal material and magnetic field. It is ejected into space at high speed. It impacts the Earth a few days later if at the right direction. ...
Testing
... • How do we define the day, month, year, and planetary time periods? – Sidereal day (Earth’s rotation with respect to stars) is 4 minutes shorter than a solar day. – Sidereal month (27.3 day orbit of moon) is shorter then synodic month (29.5 day cycle of phases). – Tropical year (cycle of seasons) i ...
... • How do we define the day, month, year, and planetary time periods? – Sidereal day (Earth’s rotation with respect to stars) is 4 minutes shorter than a solar day. – Sidereal month (27.3 day orbit of moon) is shorter then synodic month (29.5 day cycle of phases). – Tropical year (cycle of seasons) i ...
The Sun: Our Star
... A star is a ball of gas held in hydrostatic equilibrium against its own self-gravity by the thermal pressure of the hot gas, cooling from center to the surface This energy comes from nuclear fusion reactions at the center of the Sun (we will expand on this in the next lecture) ...
... A star is a ball of gas held in hydrostatic equilibrium against its own self-gravity by the thermal pressure of the hot gas, cooling from center to the surface This energy comes from nuclear fusion reactions at the center of the Sun (we will expand on this in the next lecture) ...
cards for each vacation stop - Morehead Planetarium and Science
... 1. Welcome everyone and introduce your theme for the Solar System Walk: We’ll take a whirlwind vacation through our solar system. 2. Ask your visitors, “What’s the longest distance you’ve ever walked or hiked at once?” 3. Today, we’ll hike 3.6 billion miles (6 billion kilometers) from the Sun to Plu ...
... 1. Welcome everyone and introduce your theme for the Solar System Walk: We’ll take a whirlwind vacation through our solar system. 2. Ask your visitors, “What’s the longest distance you’ve ever walked or hiked at once?” 3. Today, we’ll hike 3.6 billion miles (6 billion kilometers) from the Sun to Plu ...
Astro 001 Spring 2002
... (24) The Sun appears to move among the stars. The Copernican model accounts for this as being due to A. the Earth’s rotation on its axis. B. the Earth’s revolution around the Sun. C. the actual motion of the Sun against distant stars. D. the Earth changing speed in its orbit. E. different planets mo ...
... (24) The Sun appears to move among the stars. The Copernican model accounts for this as being due to A. the Earth’s rotation on its axis. B. the Earth’s revolution around the Sun. C. the actual motion of the Sun against distant stars. D. the Earth changing speed in its orbit. E. different planets mo ...
Pluto_Friends
... (1) A “planet” is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. (2) A “dwarf planet” is a cele ...
... (1) A “planet” is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. (2) A “dwarf planet” is a cele ...
Solar System
The Solar System comprises the Sun and the planetary system that orbits it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies such as comets and asteroids. Of those that orbit the Sun indirectly, two are larger than the smallest planet.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed largely of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.The Solar System also contains smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, populations of trans-Neptunian objects composed mostly of ices, and beyond them a newly discovered population of sednoids. Within these populations are several dozen to possibly tens of thousands of objects large enough to have been rounded by their own gravity. Such objects are categorized as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed ""moons"" after the Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind; it extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located in the Orion Arm, 26,000 light-years from the center of the Milky Way.