The Milky Way - Montgomery College
... Many absorption lines also from heavier elements (metals): Population ...
... Many absorption lines also from heavier elements (metals): Population ...
Jupiter - Mestre a casa
... Jupiter has its own 'mini solar system' of 49 moons. Scientists are most interested in the Galilean satellites the four largest moons discovered by Galileo Galilei in 1610. Europa, may have an ocean under its frozen surface. Calisto's crater-pocked landscape may be the oldest in the solar system. Ga ...
... Jupiter has its own 'mini solar system' of 49 moons. Scientists are most interested in the Galilean satellites the four largest moons discovered by Galileo Galilei in 1610. Europa, may have an ocean under its frozen surface. Calisto's crater-pocked landscape may be the oldest in the solar system. Ga ...
Introduction to the sky
... Betelgeuse (α Ori) from Oct. 21, 1979, to Nov. 11, 1996. It is a slowly pulsating star that will eventually explode as a Type II supernova. ...
... Betelgeuse (α Ori) from Oct. 21, 1979, to Nov. 11, 1996. It is a slowly pulsating star that will eventually explode as a Type II supernova. ...
life cycle of stars notes
... Stars live on average from a few million years to 10 or more billion years. ...
... Stars live on average from a few million years to 10 or more billion years. ...
No Slide Title
... http://www.astro.washington.edu/larson/Astro150b/Lectures/Comet s/comets.html ...
... http://www.astro.washington.edu/larson/Astro150b/Lectures/Comet s/comets.html ...
Revolution Rotation
... Fragments of material which vaporize when they have a close encounter with a space body which has an ...
... Fragments of material which vaporize when they have a close encounter with a space body which has an ...
Due: January 3, 2014 Name
... The celestial equator is the great circle on the celestial sphere that is midway between the celestial poles. The plane of the celestial equator is the same as the plane of the Earth’s equator. The north and south celestial poles are at the intersection of the celestial sphere with the extension of ...
... The celestial equator is the great circle on the celestial sphere that is midway between the celestial poles. The plane of the celestial equator is the same as the plane of the Earth’s equator. The north and south celestial poles are at the intersection of the celestial sphere with the extension of ...
ASTR2050 Spring 2005 •
... Binary star systems provide most of what we know about the structure and properties of stars! ...
... Binary star systems provide most of what we know about the structure and properties of stars! ...
TAKS objective 5 Earth and Space Systems
... dust) and ice crystals. When their orbits take them close to the sun, dust and ice heat up to produce a “tail” behind the comet. Larger comets may even become visible without the aid of a telescope. ...
... dust) and ice crystals. When their orbits take them close to the sun, dust and ice heat up to produce a “tail” behind the comet. Larger comets may even become visible without the aid of a telescope. ...
2011 Solar Walk Media Kit | Contents
... Alexandria, Virginia, November 18th - Vito Technology today is pleased to announce Solar Walk - 3D Solar System 1.9 for iOS, an update to their award-winning Education app that allows users to play with an interactive model of the Solar System and the Milky Way galaxy. The 360-degree, touch control ...
... Alexandria, Virginia, November 18th - Vito Technology today is pleased to announce Solar Walk - 3D Solar System 1.9 for iOS, an update to their award-winning Education app that allows users to play with an interactive model of the Solar System and the Milky Way galaxy. The 360-degree, touch control ...
ppt
... But, 3:2 orbital resonance => won’t collide with Neptune The closest distance to Neptune is 17 AU, but only 11 AU to Uranus. ...
... But, 3:2 orbital resonance => won’t collide with Neptune The closest distance to Neptune is 17 AU, but only 11 AU to Uranus. ...
Comets
... source of short period (P<200yr) comets • Oort Cloud, 10,000 AU from Sun, reservoir of long period comets, stored there billions of years • Small objects much more abundant • Cometary activity is triggered by sunlight • Comet tails: dust, shaped by solar radiation; ion or plasma tail shaped by solar ...
... source of short period (P<200yr) comets • Oort Cloud, 10,000 AU from Sun, reservoir of long period comets, stored there billions of years • Small objects much more abundant • Cometary activity is triggered by sunlight • Comet tails: dust, shaped by solar radiation; ion or plasma tail shaped by solar ...
ASTRONOMY 120
... By the time the helium core of a red giant has collapsed for millions of years, the core has a high density of electrons that produce a pressure unlike that of normal gas. This electron pressure is not influenced by temperature. When the core temperature finally reaches about 100 million K, helium b ...
... By the time the helium core of a red giant has collapsed for millions of years, the core has a high density of electrons that produce a pressure unlike that of normal gas. This electron pressure is not influenced by temperature. When the core temperature finally reaches about 100 million K, helium b ...
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.