Lecture 19: Planet Formation I. Clues from the Solar System
... 2. In a turbulent nebula, growth continues via simple two-body collisions. The growth of solid bodies from mm to km size must occur very quickly, but the related physics is poorly understood. ...
... 2. In a turbulent nebula, growth continues via simple two-body collisions. The growth of solid bodies from mm to km size must occur very quickly, but the related physics is poorly understood. ...
The Universe in a Day - UC Berkeley Astronomy w
... The Universe in a Day The Solar System does not form until 3pm. The first life (bacterial) appears on the Earth by 4pm. Our atmosphere begins to have free oxygen at 7 or 8 pm, and this promotes the development of creatures which can move more aggressively and eat each other. Life does not begin to ...
... The Universe in a Day The Solar System does not form until 3pm. The first life (bacterial) appears on the Earth by 4pm. Our atmosphere begins to have free oxygen at 7 or 8 pm, and this promotes the development of creatures which can move more aggressively and eat each other. Life does not begin to ...
The Solar System
... Neptune is the 8th planet from the sun and it is an outer planet. Neptune orbits the Sun at a distance of 30.1 AU. Temperatures at the planet's center are approximately 5,400 K (5,000 °C). Neptune revolves around the sun once every 165 years. Neptune makes a full rotation in 16 hours. The diameter o ...
... Neptune is the 8th planet from the sun and it is an outer planet. Neptune orbits the Sun at a distance of 30.1 AU. Temperatures at the planet's center are approximately 5,400 K (5,000 °C). Neptune revolves around the sun once every 165 years. Neptune makes a full rotation in 16 hours. The diameter o ...
Solar System Science
... gaseous giants and their moons Study Jupiter In-situ , its atmosphere and internal structure. Obtain direct laboratory information of the building blocks of the Solar System by analysing samples from a Near-Earth Object. Giant planets with their rings,diverse satellites and complex environments, con ...
... gaseous giants and their moons Study Jupiter In-situ , its atmosphere and internal structure. Obtain direct laboratory information of the building blocks of the Solar System by analysing samples from a Near-Earth Object. Giant planets with their rings,diverse satellites and complex environments, con ...
Comets, Asteroids, Meteors and the things beyond Neptune!
... Dust tail is opposite the motion of the comet. Trail of debris left behind. Ion tail is ALWAYS on the opposite side of the Sun. Solar wind (charged particles, electron and protons, shot outward from the Sun). The charged particles excite the gases emitted from comet and give off light (usually blue) ...
... Dust tail is opposite the motion of the comet. Trail of debris left behind. Ion tail is ALWAYS on the opposite side of the Sun. Solar wind (charged particles, electron and protons, shot outward from the Sun). The charged particles excite the gases emitted from comet and give off light (usually blue) ...
The Sun - Millersville Meteorology
... ο Chromosphere Rarified (low density) layer A couple of thousand km thick. ο Corona Very rarified Very high temperature (up to 5 million K) ο Above the corona is the magnetosphere. ο The solar wind is a flow of atomic particles into space from the sun ...
... ο Chromosphere Rarified (low density) layer A couple of thousand km thick. ο Corona Very rarified Very high temperature (up to 5 million K) ο Above the corona is the magnetosphere. ο The solar wind is a flow of atomic particles into space from the sun ...
Chapter15_New
... 15. Their orbits are altered by the gravity of passing stars. 16. From a disk of comets that orbit between Neptune’s orbit and about 1000 AU 17. They strike planets, are eroded by many passages near the Sun, or are fragmented by passing too near the Sun or a planet. 18. Meteor showers are produced b ...
... 15. Their orbits are altered by the gravity of passing stars. 16. From a disk of comets that orbit between Neptune’s orbit and about 1000 AU 17. They strike planets, are eroded by many passages near the Sun, or are fragmented by passing too near the Sun or a planet. 18. Meteor showers are produced b ...
Year 5 Fantasy Corridor
... We learnt that humidity, temperatures and light help plants to survive in harsh environments. However, in rainforests plants don’t get much light so they have adapted to this by using the other factors like humidity and temperatures more efficiently compared to plants in arid zones. Plants like cact ...
... We learnt that humidity, temperatures and light help plants to survive in harsh environments. However, in rainforests plants don’t get much light so they have adapted to this by using the other factors like humidity and temperatures more efficiently compared to plants in arid zones. Plants like cact ...
Huge Quantum Gravity Effects in the Solar System
... seem to suggest that quantum effects are very small for the motion of planets in the Solar System. Nevertheless, there are other effects that can make quantum effects become enormous. In particular, classical chaos in the Solar System [1, 2, 3, 4, 5, 6, 7, 8, 9] can exponentially amplify quantum un ...
... seem to suggest that quantum effects are very small for the motion of planets in the Solar System. Nevertheless, there are other effects that can make quantum effects become enormous. In particular, classical chaos in the Solar System [1, 2, 3, 4, 5, 6, 7, 8, 9] can exponentially amplify quantum un ...
Lecture11-ASTA01 - University of Toronto
... • There is clear evidence that disks of gas and dust are common around young stars. • The idea is so comprehensive and explains so many observations that it can be considered to have ‘graduated’ from being just a hypothesis to being properly called a theory. • Bipolar flows from protostars were the ...
... • There is clear evidence that disks of gas and dust are common around young stars. • The idea is so comprehensive and explains so many observations that it can be considered to have ‘graduated’ from being just a hypothesis to being properly called a theory. • Bipolar flows from protostars were the ...
(PS) Descriptive Astronomy (2) - Wayne State University Physics
... of the Earth at 4.5 billion years. •Know there are other solar systems, and understand at a basic level the methods used by astronomers to detect them. Stars: •Understand the Sun is a medium size star among several billion others in our galaxy, the Milky Way •Understand the basic classification of s ...
... of the Earth at 4.5 billion years. •Know there are other solar systems, and understand at a basic level the methods used by astronomers to detect them. Stars: •Understand the Sun is a medium size star among several billion others in our galaxy, the Milky Way •Understand the basic classification of s ...
Guide to the Sun Poster PDF
... A solar eclipse occurs when the Sun, Moon and Earth are very nearly in a straight line. A total solar eclipse is seen at places where the umbra of the Moon’s shadow cone falls on and moves over the Earth’s surface; at the same time the eclipse will appear partial to observers on either side of the c ...
... A solar eclipse occurs when the Sun, Moon and Earth are very nearly in a straight line. A total solar eclipse is seen at places where the umbra of the Moon’s shadow cone falls on and moves over the Earth’s surface; at the same time the eclipse will appear partial to observers on either side of the c ...
Table of contents Overview of the Solar System
... Mercury is the closest planet to the Sun and is also the smallest among all of the eight ones. According to physics, a body close to a bigger one accelerates faster around it. This is the same for Mercury; it has the fastest orbital period around the Sun. It takes 175,97 Earth days for one orbit. Si ...
... Mercury is the closest planet to the Sun and is also the smallest among all of the eight ones. According to physics, a body close to a bigger one accelerates faster around it. This is the same for Mercury; it has the fastest orbital period around the Sun. It takes 175,97 Earth days for one orbit. Si ...
The booklet - Cosmos
... Mercury is the closest planet to the Sun and is also the smallest among all of the eight ones. According to physics, a body close to a bigger one accelerates faster around it. This is the same for Mercury; it has the fastest orbital period around the Sun. It takes 175,97 Earth days for one orbit. Si ...
... Mercury is the closest planet to the Sun and is also the smallest among all of the eight ones. According to physics, a body close to a bigger one accelerates faster around it. This is the same for Mercury; it has the fastest orbital period around the Sun. It takes 175,97 Earth days for one orbit. Si ...
Meteorites
... o Can meteorites cause extinctions? We study meteorites directly by collecting them and measuring their chemical composition and structure. The simplest classification scheme separates meteorites into three groups---stony, iron, and stony-iron---based on the relative amounts of iron and silicates. A ...
... o Can meteorites cause extinctions? We study meteorites directly by collecting them and measuring their chemical composition and structure. The simplest classification scheme separates meteorites into three groups---stony, iron, and stony-iron---based on the relative amounts of iron and silicates. A ...
The Solar System comprises the Sun and the objects that orbit it
... satellites,[e] usually termed "moons" after Earth's Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects. The solar wind, plasma flowing outwards from the Sun, creates a bubble in the interstellar medium known as the heliosphere. The heliopause is the point ...
... satellites,[e] usually termed "moons" after Earth's Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects. The solar wind, plasma flowing outwards from the Sun, creates a bubble in the interstellar medium known as the heliosphere. The heliopause is the point ...
The Sun - Centra
... Sun, travel through the main body called it interior interior.. They travel a zigzag path on their way out, as they are scattered back and forth by particles (mostly electrons). So many interactions occur that it literally takes occur, hundreds of thousands of years for a typical photon to travel fr ...
... Sun, travel through the main body called it interior interior.. They travel a zigzag path on their way out, as they are scattered back and forth by particles (mostly electrons). So many interactions occur that it literally takes occur, hundreds of thousands of years for a typical photon to travel fr ...
Meteorites
... o Can meteorites cause extinctions? We study meteorites directly by collecting them and measuring their chemical composition and structure. The simplest classification scheme separates meteorites into three groups---stony, iron, and stony-iron---based on the relative amounts of iron and silicates. A ...
... o Can meteorites cause extinctions? We study meteorites directly by collecting them and measuring their chemical composition and structure. The simplest classification scheme separates meteorites into three groups---stony, iron, and stony-iron---based on the relative amounts of iron and silicates. A ...
Supernovae
... Neutrinos carry energy out of the star and provide momentum through collisions to throw off material. Or they heat the material so that it expands. They have no mass (like photons) and can traverse large depths without being absorbed. ...
... Neutrinos carry energy out of the star and provide momentum through collisions to throw off material. Or they heat the material so that it expands. They have no mass (like photons) and can traverse large depths without being absorbed. ...
Lecture12
... A graphite-like carbonaceous compound formed. This compound is found (spectroscopically) on the surfaces of many asteroids in the outer belt and in the Kuiper belt. This material is the source of the carbonaceous chondrites ...
... A graphite-like carbonaceous compound formed. This compound is found (spectroscopically) on the surfaces of many asteroids in the outer belt and in the Kuiper belt. This material is the source of the carbonaceous chondrites ...
Frequency Converters in ESA Stations
... Point mass and relativistic perturbative accelerations in the solar-system barycentric frame of reference according to Moyer [1971, 2000]. Coordinate time is expressed in TDB time scale. Considered Bodies: Sun, Planets, Pluto, the Moon, Phobos & Deimos and the big three asteroids DE405 planetary eph ...
... Point mass and relativistic perturbative accelerations in the solar-system barycentric frame of reference according to Moyer [1971, 2000]. Coordinate time is expressed in TDB time scale. Considered Bodies: Sun, Planets, Pluto, the Moon, Phobos & Deimos and the big three asteroids DE405 planetary eph ...
Public star parties are a great way to promote astronomy
... Individual stars usually don’t look too terribly impressive through a telescope. They do tend to sparkle a bit and show some color, but to make them really astounding, tell your observers about the true scale of a star. Here’s one interesting way to do it: Our own star, the sun, is a pretty average ...
... Individual stars usually don’t look too terribly impressive through a telescope. They do tend to sparkle a bit and show some color, but to make them really astounding, tell your observers about the true scale of a star. Here’s one interesting way to do it: Our own star, the sun, is a pretty average ...
Heliosphere
The heliosphere is the bubble-like region of space dominated by the Sun, which extends far beyond the orbit of Pluto. Plasma ""blown"" out from the Sun, known as the solar wind, creates and maintains this bubble against the outside pressure of the interstellar medium, the hydrogen and helium gas that permeates the Milky Way Galaxy. The solar wind flows outward from the Sun until encountering the termination shock, where motion slows abruptly. The Voyager spacecraft have actively explored the outer reaches of the heliosphere, passing through the shock and entering the heliosheath, a transitional region which is in turn bounded by the outermost edge of the heliosphere, called the heliopause. The overall shape of the heliosphere is controlled by the interstellar medium, through which it is traveling, as well as the Sun, and does not appear to be perfectly spherical. The limited data available and unexplored nature of these structures have resulted in many theories.On September 12, 2013, NASA announced that Voyager 1 had exited the heliosphere on August 25, 2012, when it measured a sudden increase in plasma density of about forty times. Because the heliopause marks one boundary between the Sun's solar wind and the rest of the galaxy, a spacecraft such as Voyager 1 which has departed the heliosphere can be said to have reached interstellar space.