Our Star, the Sun - Solar Physics and Space Weather
... the solar wind of the Sun’s atmosphere • Corona is made of very high-temperature gases at extremely low density • It extends to several million Km • Because of hot temperature, it expands into the outer space forming solar wind ...
... the solar wind of the Sun’s atmosphere • Corona is made of very high-temperature gases at extremely low density • It extends to several million Km • Because of hot temperature, it expands into the outer space forming solar wind ...
Chapter 2 History
... Aristotelian theory of motion, and only managed to account for the observed planetary positions by a combination of deferents and epicycles centred on the stationary sun. It was the moving earth that annoyed his peers. Tycho Brahe, the great astronomer of the next generation clearly appreciated the ...
... Aristotelian theory of motion, and only managed to account for the observed planetary positions by a combination of deferents and epicycles centred on the stationary sun. It was the moving earth that annoyed his peers. Tycho Brahe, the great astronomer of the next generation clearly appreciated the ...
November 2005 - Otterbein University
... – get the luminosity. This is your y-coordinate. – Then take the spectral type as your x-coordinate. This may look strange, e.g. K5III for Aldebaran. Ignore the roman numbers ( III means a giant star, V means dwarf star, etc). First letter is the spectral type: K (one of OBAFGKM), the arab number (5 ...
... – get the luminosity. This is your y-coordinate. – Then take the spectral type as your x-coordinate. This may look strange, e.g. K5III for Aldebaran. Ignore the roman numbers ( III means a giant star, V means dwarf star, etc). First letter is the spectral type: K (one of OBAFGKM), the arab number (5 ...
Goals of the day Clickers Order of Magnitude Astronomy
... C. The image of the supernova dispersing will not reach us for another 2 million years. D. We will never see the supernova remnant because it has already dispersed. ...
... C. The image of the supernova dispersing will not reach us for another 2 million years. D. We will never see the supernova remnant because it has already dispersed. ...
ppt
... planets have slightly different properties than nontransiting planets. • Most likely explanation: Transit searches are not as biased as radial velocity searches. One looks for transits around all stars in a field, these are not preselected. The only bias comes with which ones are followed up with Do ...
... planets have slightly different properties than nontransiting planets. • Most likely explanation: Transit searches are not as biased as radial velocity searches. One looks for transits around all stars in a field, these are not preselected. The only bias comes with which ones are followed up with Do ...
a MS Word version.
... 6. List the major planets in order from the Sun. Give the approx. semimajor axis lengths in AU and their approx. planetary diameters in "Earth diameters". ...
... 6. List the major planets in order from the Sun. Give the approx. semimajor axis lengths in AU and their approx. planetary diameters in "Earth diameters". ...
This graph is typical of a - Indiana University Astronomy
... Ceres, Pallas, Juno, and Vesta are names for four of what type of objects? ...
... Ceres, Pallas, Juno, and Vesta are names for four of what type of objects? ...
Welcome to Astro 10! - UC Berkeley Astronomy w
... of gas that prevents collapse due to nuclear reactions in its core. The Sun is a typical star. • Planet: A body of substantial size (>1000 km in diameter), but not massive enough for nuclear reactions to begin, typically orbiting a star. ...
... of gas that prevents collapse due to nuclear reactions in its core. The Sun is a typical star. • Planet: A body of substantial size (>1000 km in diameter), but not massive enough for nuclear reactions to begin, typically orbiting a star. ...
16 The topographic map below shows the location of a stream
... surface at the same distance from the ocean, at the same elevation above sea level, and at the same latitude. ...
... surface at the same distance from the ocean, at the same elevation above sea level, and at the same latitude. ...
Uranus and Neptune
... is a good insulator (holding heat), this has little effect on seasonal temperature variations ...
... is a good insulator (holding heat), this has little effect on seasonal temperature variations ...
a list of Planetarium Shows currently available.
... 9. Fire Fall Throughout Earth's violent history, impacts from comets and asteroids have mercilessly shaped its surface. The ancient barrage continues today; from harmless meteors - those brilliant streaks in the night sky, to mountain sized boulders wandering perilously close to Earth. Terrifying an ...
... 9. Fire Fall Throughout Earth's violent history, impacts from comets and asteroids have mercilessly shaped its surface. The ancient barrage continues today; from harmless meteors - those brilliant streaks in the night sky, to mountain sized boulders wandering perilously close to Earth. Terrifying an ...
THE SUN AND THE MOON
... of protons and electrons moving almost 1 million miles per hour. Earth’s atmosphere and magnetic field protect us from most of the solar wind, but at the poles, the solar wind often comes into contact with the air and glows, producing a beautiful effect called an aurora. The Sun balances its huge gr ...
... of protons and electrons moving almost 1 million miles per hour. Earth’s atmosphere and magnetic field protect us from most of the solar wind, but at the poles, the solar wind often comes into contact with the air and glows, producing a beautiful effect called an aurora. The Sun balances its huge gr ...
Document
... • Second largest planet – with rings • Atmosphere composition similar to Jupiter, but less metallic H2 • Density ~ 0.69 g/cc (could float on water!) • Twice as far from the Sun as Jupiter • Surface Temp = 95 K • Deep clouds, strong winds (1700 Km/hr) • Intrinsic magnetic field is 1000 x Earth’s (but ...
... • Second largest planet – with rings • Atmosphere composition similar to Jupiter, but less metallic H2 • Density ~ 0.69 g/cc (could float on water!) • Twice as far from the Sun as Jupiter • Surface Temp = 95 K • Deep clouds, strong winds (1700 Km/hr) • Intrinsic magnetic field is 1000 x Earth’s (but ...
Chapter 18 Notes - Valdosta State University
... As the material in the nebula begins to accrete, the temperature begins to increase and a protostar is formed. This process continues until fusion begins and at this point the star is born and takes its place on the main sequence depending on its temperature and brightness. When the hydrogen is use ...
... As the material in the nebula begins to accrete, the temperature begins to increase and a protostar is formed. This process continues until fusion begins and at this point the star is born and takes its place on the main sequence depending on its temperature and brightness. When the hydrogen is use ...
Notes 1 - cloudfront.net
... 7 milimeters is usually the size range in an adult’s pupil charged couple device (CCD) are more sensitive than film Messier 13 (M13): ~ great globular cluster ~ 25, 100 light years away ...
... 7 milimeters is usually the size range in an adult’s pupil charged couple device (CCD) are more sensitive than film Messier 13 (M13): ~ great globular cluster ~ 25, 100 light years away ...
The Sun
... Our Sun is a star, and a fairly average star at that, but with one unique feature: it is very close to us It is 300,000 times closer than our next nearest neighbor, Alpha Centauri. Alpha Centauri is 4.3 light years from us the Sun is only 8 light minutes away from us. ...
... Our Sun is a star, and a fairly average star at that, but with one unique feature: it is very close to us It is 300,000 times closer than our next nearest neighbor, Alpha Centauri. Alpha Centauri is 4.3 light years from us the Sun is only 8 light minutes away from us. ...
Unit 5 -
... Conduction cannot travel through a vacuum because in a vacuum there are no atoms or molecules…something made of atoms or molecules has to touch something else made of atoms or molecules in order for there to be conduction. ◦ Ex: If you touch a hot object the heat is conducted by physical contact wit ...
... Conduction cannot travel through a vacuum because in a vacuum there are no atoms or molecules…something made of atoms or molecules has to touch something else made of atoms or molecules in order for there to be conduction. ◦ Ex: If you touch a hot object the heat is conducted by physical contact wit ...
The Sun
... The average solar density is approximately 1400 kg/m3, and is quite similar to that of the jovian planets and about one-quarter the average density of ...
... The average solar density is approximately 1400 kg/m3, and is quite similar to that of the jovian planets and about one-quarter the average density of ...
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.