Comets - Cloudfront.net
... The Origin of Comets Occasionally the gravity of a passing star changes the orbit of some of these icy planetismals so that they go closer to the Sun. When the icy planetismal, a comet nucleus, usually about 10 km in diameter reaches Jupiter’s orbit it begins to melt and a cloud of gas and dust cal ...
... The Origin of Comets Occasionally the gravity of a passing star changes the orbit of some of these icy planetismals so that they go closer to the Sun. When the icy planetismal, a comet nucleus, usually about 10 km in diameter reaches Jupiter’s orbit it begins to melt and a cloud of gas and dust cal ...
Physics 306
... o HI clouds – clouds of neutral gas, 50-150 pc in diameter, few solar masses, 100K temp (low), 10- few hundred atom/cubic cm (high density) not ionized! *make up about 25% of interstellar mass o Intercloud medium – few thousand K, .1 atom/cubic cm (low density), IONIZED hydrogen (HII), in approx. e ...
... o HI clouds – clouds of neutral gas, 50-150 pc in diameter, few solar masses, 100K temp (low), 10- few hundred atom/cubic cm (high density) not ionized! *make up about 25% of interstellar mass o Intercloud medium – few thousand K, .1 atom/cubic cm (low density), IONIZED hydrogen (HII), in approx. e ...
Astrobiology: young science, old questions
... planets orbiting distant stars. Although no such and the next? What factors help determine about 70% of its present luminosity when it planets have yet been discovered, the first will which planets are most suited to the develop- was very young. Consequently, the HZ around be found within the next c ...
... planets orbiting distant stars. Although no such and the next? What factors help determine about 70% of its present luminosity when it planets have yet been discovered, the first will which planets are most suited to the develop- was very young. Consequently, the HZ around be found within the next c ...
Topic 4 Assignment - Science 9 Portfolio
... ground-based astronomical telescope by counteracting the effects of the atmosphere on the image. A deforming mirror in the light path of the telescope maintains a pointlike image of the celestial body using either a real star or a laser beam as a reference. Triangulation- the process of determining ...
... ground-based astronomical telescope by counteracting the effects of the atmosphere on the image. A deforming mirror in the light path of the telescope maintains a pointlike image of the celestial body using either a real star or a laser beam as a reference. Triangulation- the process of determining ...
cocoon - Adams State University
... A) Because the universe was smaller then, the gas was much denser everywhere. B) The universe was much hotter in the first billion years, so the gas clouds had to be more massive to overcome the warmer temperature. C) Hydrogen can’t radiate away heat below about 100 K, so the gas clouds had to be mo ...
... A) Because the universe was smaller then, the gas was much denser everywhere. B) The universe was much hotter in the first billion years, so the gas clouds had to be more massive to overcome the warmer temperature. C) Hydrogen can’t radiate away heat below about 100 K, so the gas clouds had to be mo ...
Peer Instruction/Active Learning
... I’ve selected some ConcepTests from my Gen Ed 100-‐level astronomy class as most of you will not know the answers straight off, but maybe can work them out. ...
... I’ve selected some ConcepTests from my Gen Ed 100-‐level astronomy class as most of you will not know the answers straight off, but maybe can work them out. ...
Universe and Solar System
... the President. The probe will study our solar system. Because the scientists who study those images will be from your generation, the President plans to announce the probe at a middle school. Your school is one of three being considered. To be chosen, students must use a variety of media to illustra ...
... the President. The probe will study our solar system. Because the scientists who study those images will be from your generation, the President plans to announce the probe at a middle school. Your school is one of three being considered. To be chosen, students must use a variety of media to illustra ...
Meteors, Asteroids, and Comets (Powerpoint)
... coma of Comet 17P/Holmes both expanding and fading. This spectacular composite image shows how the coma and tail of Comet Holmes have changed. Due to Earth's changing vantage point, Comet Holmes, out beyond the orbit of Mars, was seen in November nearly head-on, but in recent months is seen more fro ...
... coma of Comet 17P/Holmes both expanding and fading. This spectacular composite image shows how the coma and tail of Comet Holmes have changed. Due to Earth's changing vantage point, Comet Holmes, out beyond the orbit of Mars, was seen in November nearly head-on, but in recent months is seen more fro ...
15.2 Characteristics of Stars
... Microwaves in space are used by astronomers to learn about the structure of nearby galaxies, and our own Milky Way! ...
... Microwaves in space are used by astronomers to learn about the structure of nearby galaxies, and our own Milky Way! ...
Methods Of Discovering Extra solar Planets.
... method, but it is vital and can be used if needed. ...
... method, but it is vital and can be used if needed. ...
How is energy stored in atoms? Energy Level Transitions A Simple
... • Orbit and spin directions should be mostly the same • Planets should have roughly the same age as their star ...
... • Orbit and spin directions should be mostly the same • Planets should have roughly the same age as their star ...
1 3 Formation of the Solar System
... Earth’s atmosphere. However, most of these objects burn up in Earth’s atmosphere. Many of the large rocks from space that survive the trip through Earth’s atmosphere come from asteroids. Rocks that reach Earth’s surface are called meteorites. There are three major types of meteorites: stony, iron, a ...
... Earth’s atmosphere. However, most of these objects burn up in Earth’s atmosphere. Many of the large rocks from space that survive the trip through Earth’s atmosphere come from asteroids. Rocks that reach Earth’s surface are called meteorites. There are three major types of meteorites: stony, iron, a ...
Exoplanets - Mid-Pacific Institute
... the star drops by a small amount • The amount as to how much the star dims depends on the size of the planet among others • Second most productive method ...
... the star drops by a small amount • The amount as to how much the star dims depends on the size of the planet among others • Second most productive method ...
Part 2: Solar System Formation
... • Within the disk, material is constantly colliding with one another. If the collisions are not too violent material may stick together. • In the outer parts of the Solar Nebula the planets become large enough to have a significant gravitational pull and collect gas around them. • Planets in the inn ...
... • Within the disk, material is constantly colliding with one another. If the collisions are not too violent material may stick together. • In the outer parts of the Solar Nebula the planets become large enough to have a significant gravitational pull and collect gas around them. • Planets in the inn ...
Theme 7.2 -- The Complete Solar System
... you to a very nice brief animation in which we see how Kepler can detect multi-planet systems, where the flickering of the star tells us about the presence of 5 or 6 planets in a single system. The discovery of so many planetary systems is very strong evidence that the nebular hypothesis is correct, ...
... you to a very nice brief animation in which we see how Kepler can detect multi-planet systems, where the flickering of the star tells us about the presence of 5 or 6 planets in a single system. The discovery of so many planetary systems is very strong evidence that the nebular hypothesis is correct, ...
Scale Model of the Solar System
... • Material from the solar nebula was still condensing slowly after Sun was formed • Gradually, the gas in the nebula began to condense into planetesimals through process called accretion – Temperature highest in the inner regions of the nebula (radiation from Sun) • Prevented light gases from conden ...
... • Material from the solar nebula was still condensing slowly after Sun was formed • Gradually, the gas in the nebula began to condense into planetesimals through process called accretion – Temperature highest in the inner regions of the nebula (radiation from Sun) • Prevented light gases from conden ...
Bill Nye – Outer Space Worksheet
... 1. We have learned about the universe the same way people have always learned about the universe – by people looking up and saying … c. whoa! 2. By looking at the stars, we have learned about… c. outer space. 3. Things in space are very far apart. a. True 4. If the Earth were the size Bill Nye shows ...
... 1. We have learned about the universe the same way people have always learned about the universe – by people looking up and saying … c. whoa! 2. By looking at the stars, we have learned about… c. outer space. 3. Things in space are very far apart. a. True 4. If the Earth were the size Bill Nye shows ...
ASTRO OTTER (for secondary students)
... This lesson covers many important topics including the Copernican Heliocentric model of the solar system. Details are given about observations that Galileo made that supported this scientific model of the solar system. This presentation also discusses the Sun's orbit around the center of the Milky W ...
... This lesson covers many important topics including the Copernican Heliocentric model of the solar system. Details are given about observations that Galileo made that supported this scientific model of the solar system. This presentation also discusses the Sun's orbit around the center of the Milky W ...
Chapter 13: Interstellar Matter and Star Formation
... (b) Interstellar gas causes absorption lines in stellar spectra. These lines can be distinguished from absorption lines of a stellar atmosphere in three ways. (i) Absorption lines due to interstellar gas tend to be narrower than those produced by a star’s atmosphere. (ii) Lines caused by a stellar a ...
... (b) Interstellar gas causes absorption lines in stellar spectra. These lines can be distinguished from absorption lines of a stellar atmosphere in three ways. (i) Absorption lines due to interstellar gas tend to be narrower than those produced by a star’s atmosphere. (ii) Lines caused by a stellar a ...
Comets
... Minor Members of the Solar System Meteoroids Most meteoroids originate from any one of the following three sources: (1)interplanetary debris that was not gravitationally swept up by the planets during the formation of the solar system, (2) material from the asteroid belt, or (3) the solid remains ...
... Minor Members of the Solar System Meteoroids Most meteoroids originate from any one of the following three sources: (1)interplanetary debris that was not gravitationally swept up by the planets during the formation of the solar system, (2) material from the asteroid belt, or (3) the solid remains ...
Distances in space
... earth to the sun 149,597,870km.Ther are different ways to measure the distances in space Au's are one of them the other one is light-years. How far is the closest star in light-years? The closest star is called Proxima it is about 40,000,000,000,000 km and in light-years it is about 4.24 light-years ...
... earth to the sun 149,597,870km.Ther are different ways to measure the distances in space Au's are one of them the other one is light-years. How far is the closest star in light-years? The closest star is called Proxima it is about 40,000,000,000,000 km and in light-years it is about 4.24 light-years ...
Chapter 1 - Colorado Mesa University
... • Our earth orbits our sun at a distance of ~ 150 million km, what we call an Astronomical Unit or AU and is tilted 23.6 degrees to its orbital plane. • Our sun orbits the center of the Milky Way about 8.5 kPc out. ...
... • Our earth orbits our sun at a distance of ~ 150 million km, what we call an Astronomical Unit or AU and is tilted 23.6 degrees to its orbital plane. • Our sun orbits the center of the Milky Way about 8.5 kPc out. ...
PSC101-lecture12
... • Within the disk, material is constantly colliding with one another. If the collisions are not too violent material may stick together. • In the outer parts of the Solar Nebula the planets become large enough to have a significant gravitational pull and collect gas around them. • Planets in the inn ...
... • Within the disk, material is constantly colliding with one another. If the collisions are not too violent material may stick together. • In the outer parts of the Solar Nebula the planets become large enough to have a significant gravitational pull and collect gas around them. • Planets in the inn ...
Formation of the Solar System Chapter 8
... The idea that the solar system was born from the collapse of a cloud of dust and gas for proposed by Immanuel Kant (1755) and by Pierre Simon Laplace 40 years later. During the first part of the 20th century, some proposed that the solar system was the result of a near collision of the Sun with anot ...
... The idea that the solar system was born from the collapse of a cloud of dust and gas for proposed by Immanuel Kant (1755) and by Pierre Simon Laplace 40 years later. During the first part of the 20th century, some proposed that the solar system was the result of a near collision of the Sun with anot ...
Panspermia
Panspermia (from Greek πᾶν (pan), meaning ""all"", and σπέρμα (sperma), meaning ""seed"") is the hypothesis that life exists throughout the Universe, distributed by meteoroids, asteroids, comets, planetoids and, also, by spacecraft in the form of unintended contamination by microorganisms.Panspermia is a hypothesis proposing that microscopic life forms that can survive the effects of space, such as extremophiles, become trapped in debris that is ejected into space after collisions between planets and small Solar System bodies that harbor life. Some organisms may travel dormant for an extended amount of time before colliding randomly with other planets or intermingling with protoplanetary disks. If met with ideal conditions on a new planet's surfaces, the organisms become active and the process of evolution begins. Panspermia is not meant to address how life began, just the method that may cause its distribution in the Universe.Pseudo-panspermia (sometimes called ""soft panspermia"" or ""molecular panspermia"") argues that the pre-biotic organic building blocks of life originated in space and were incorporated in the solar nebula from which the planets condensed and were further —and continuously— distributed to planetary surfaces where life then emerged (abiogenesis). From the early 1970s it was becoming evident that interstellar dust consisted of a large component of organic molecules. Interstellar molecules are formed by chemical reactions within very sparse interstellar or circumstellar clouds of dust and gas. The dust plays a critical role of shielding the molecules from the ionizing effect of ultraviolet radiation emitted by stars.Several simulations in laboratories and in low Earth orbit suggest that ejection, entry and impact is survivable for some simple organisms.