October - Sonoma County Astronomical Society
... core, it swelled into a red giant. When this happened it expanded to about the size of Earth’s orbit. Then, an unusual series of events occurred. V391 Pegasi blew away its outer envelope of gas, losing half its mass, keeping just a thin skin of atmosphere around its core. When the star lost that mas ...
... core, it swelled into a red giant. When this happened it expanded to about the size of Earth’s orbit. Then, an unusual series of events occurred. V391 Pegasi blew away its outer envelope of gas, losing half its mass, keeping just a thin skin of atmosphere around its core. When the star lost that mas ...
Name: Date Assigned: 3/25/13 Period: This scavenger hunt will
... 11) a) Define “comet.” b) draw a picture of a comet with the parts labeled. (8-4.1) 12) a) Explain what an asteroid is. B) Include a picture of the asteroid belt. (8-4.1) 13) a) make a chart explaining the differences between a meteor, a meteoroid, and a meteorite. B) find and label a picture of a m ...
... 11) a) Define “comet.” b) draw a picture of a comet with the parts labeled. (8-4.1) 12) a) Explain what an asteroid is. B) Include a picture of the asteroid belt. (8-4.1) 13) a) make a chart explaining the differences between a meteor, a meteoroid, and a meteorite. B) find and label a picture of a m ...
A brief history of extra-solar planets - X
... Aims to find an Earth around a Sun-like star in a one year orbit Need three transits to confirm So mission lasts at least three years… ...
... Aims to find an Earth around a Sun-like star in a one year orbit Need three transits to confirm So mission lasts at least three years… ...
30.2 PowerPoint Stellar Evolution
... Made mostly of hydrogen and helium with small amounts of ...
... Made mostly of hydrogen and helium with small amounts of ...
The Milky Way
... We can figure out the luminosity of a pulsating star by timing the pulsations. Since, we can measure its flux, we can then find the distance to the star. ...
... We can figure out the luminosity of a pulsating star by timing the pulsations. Since, we can measure its flux, we can then find the distance to the star. ...
Word, 160 k
... (Observatory of Geneva, Switzerland), more than 120 extrasolar planets have been detected. Most of these discoveries were made by using techniques exploiting the effects of gravity, which are significant in the case of large planets. The transit of smaller Earth-sized planets in front of a star, sim ...
... (Observatory of Geneva, Switzerland), more than 120 extrasolar planets have been detected. Most of these discoveries were made by using techniques exploiting the effects of gravity, which are significant in the case of large planets. The transit of smaller Earth-sized planets in front of a star, sim ...
Planeterella 02 - QUB Astrophysics Research Centre
... electrical grids, burning out transformers and causing blackouts. Radio and satellite communications can be disrupted, and astronauts are put at risk by high-energy particle streams. Understanding and predicting space weather allows us to prepare for solar ‘storms’ and minimise damage. Solar physici ...
... electrical grids, burning out transformers and causing blackouts. Radio and satellite communications can be disrupted, and astronauts are put at risk by high-energy particle streams. Understanding and predicting space weather allows us to prepare for solar ‘storms’ and minimise damage. Solar physici ...
Handout from Allaire Star Party
... Earth would be about the size of a pea. If you placed the beach ball on one goal line of a football field, the Earth would be at about the fifty-yard line. Pluto would be about 20 football fields away from the Sun. How far away are the closest stars? Imagine now that the Sun is shrunk even further, ...
... Earth would be about the size of a pea. If you placed the beach ball on one goal line of a football field, the Earth would be at about the fifty-yard line. Pluto would be about 20 football fields away from the Sun. How far away are the closest stars? Imagine now that the Sun is shrunk even further, ...
History
... Bode’s Rule (1851). Its orbit was between Mars and Jupiter. – Named it Ceres. – Many others were discovered (110 by 1900), and the “missing planets” formed a ring of “minor planets”. – Now over 650,000 minor planets. ...
... Bode’s Rule (1851). Its orbit was between Mars and Jupiter. – Named it Ceres. – Many others were discovered (110 by 1900), and the “missing planets” formed a ring of “minor planets”. – Now over 650,000 minor planets. ...
The Sun - Our Star
... with helium comprising most of the remainder and a few percent consisting of several elements found on Earth. From our knowledge of nuclear fusion, we know the Sun’s core must hold more helium. Calculations show that the hydrogen makes up only 34% of the center. ...
... with helium comprising most of the remainder and a few percent consisting of several elements found on Earth. From our knowledge of nuclear fusion, we know the Sun’s core must hold more helium. Calculations show that the hydrogen makes up only 34% of the center. ...
ppt
... million years. Disturbance shifts the orbits of many distant comets, making them plunge into the inner solar system. A small number of those comets hit the Earth, causing the mass extinctions. ...
... million years. Disturbance shifts the orbits of many distant comets, making them plunge into the inner solar system. A small number of those comets hit the Earth, causing the mass extinctions. ...
Brownies + Earth Day
... Did you know that the sun is not a planet but a star? Just like the stars you see at night. Though it is more than 100 times larger than earth it is just average size for a star. The Moon The moon is another body in our solar system. It is covered with deep pockets called craters. One side of the mo ...
... Did you know that the sun is not a planet but a star? Just like the stars you see at night. Though it is more than 100 times larger than earth it is just average size for a star. The Moon The moon is another body in our solar system. It is covered with deep pockets called craters. One side of the mo ...
Lecture 1
... A. Decay of radioactive materials in Jupiter's core B. Tidal forces from Jupiter's moons C. Jupiter is still contracting, and the contraction releases energy D. Jupiter's rotation is slowing down dramatically, and this slowdown releases energy E. All of the above are the energy sources ...
... A. Decay of radioactive materials in Jupiter's core B. Tidal forces from Jupiter's moons C. Jupiter is still contracting, and the contraction releases energy D. Jupiter's rotation is slowing down dramatically, and this slowdown releases energy E. All of the above are the energy sources ...
Chapter 19 Star Formation
... • The protostar continues to collapse; when the core is dense and hot enough, fusion begins • The star continues to collapse until the inward force of gravity is balanced by the outward pressure from the core. The star is now on the Main Sequence • More massive stars follow the same process, but mor ...
... • The protostar continues to collapse; when the core is dense and hot enough, fusion begins • The star continues to collapse until the inward force of gravity is balanced by the outward pressure from the core. The star is now on the Main Sequence • More massive stars follow the same process, but mor ...
satellite formation : spreading of rings beyond the roche radius
... Planets form in proto-planetary discs of gas and dust around young stars. Giant planets open gaps in this disc, and are then surrounded by a circum-planetary disc. It is generally thought that their satellites form inside this disc, like a miniature Solar System, although the delivery and growth of ...
... Planets form in proto-planetary discs of gas and dust around young stars. Giant planets open gaps in this disc, and are then surrounded by a circum-planetary disc. It is generally thought that their satellites form inside this disc, like a miniature Solar System, although the delivery and growth of ...
Vedic Cosmography and Astronomy 1
... that Vaiñëavas have traditionally made use of the astronomical siddhäntas and that both Çréla Prabhupäda and Çréla Bhaktisiddhänta Sarasvaté Öhäkura have referred to them. At the same time, we have pointed out that the authors of the astronomical siddhäntas, such as Bhäskaräcärya, have been unable t ...
... that Vaiñëavas have traditionally made use of the astronomical siddhäntas and that both Çréla Prabhupäda and Çréla Bhaktisiddhänta Sarasvaté Öhäkura have referred to them. At the same time, we have pointed out that the authors of the astronomical siddhäntas, such as Bhäskaräcärya, have been unable t ...
View/Open - SUNY DSpace
... force. Then in between Mars and Jupiter, separating the inner planets from the outer is the asteroid belt. It’s said that it’s the remains of planets that failed to form, there are about 200 asteroids larger than 60 miles in diameter, about 200 asteroids larger than 6 miles and 500,000 larger than . ...
... force. Then in between Mars and Jupiter, separating the inner planets from the outer is the asteroid belt. It’s said that it’s the remains of planets that failed to form, there are about 200 asteroids larger than 60 miles in diameter, about 200 asteroids larger than 6 miles and 500,000 larger than . ...
A PowerPoint on Lunar Grazing Occultations
... distant stars or planets. This essentially casts a shadow on the Earth and from within this shadow, you can watch the star approach the moon and wink off when it disappears, and / or wink on when it reappears • Here are some bright star lunar occultation shadow paths in 2014 visible from Santa Cruz… ...
... distant stars or planets. This essentially casts a shadow on the Earth and from within this shadow, you can watch the star approach the moon and wink off when it disappears, and / or wink on when it reappears • Here are some bright star lunar occultation shadow paths in 2014 visible from Santa Cruz… ...
Chapter 2 - personal.kent.edu
... • Predicted the order of the planets – Mercury, Venus, Earth, Mars, Jupiter, Saturn – The only six visible with the naked eye – The Th telescope l had h d not yet been b invented i d ...
... • Predicted the order of the planets – Mercury, Venus, Earth, Mars, Jupiter, Saturn – The only six visible with the naked eye – The Th telescope l had h d not yet been b invented i d ...
Lecture 5: Stars
... We only know the absolute luminosity if we know the distance, but we only know the parallax distances out to about 100 pc (further to some bright stars). The problem is that if we see a star with a surface temperature of 3000K – is it a nearby red dwarf, or a distant red giant? Without more informat ...
... We only know the absolute luminosity if we know the distance, but we only know the parallax distances out to about 100 pc (further to some bright stars). The problem is that if we see a star with a surface temperature of 3000K – is it a nearby red dwarf, or a distant red giant? Without more informat ...
Earth Science, 10th edition Chapter 23: Beyond Our Solar System I
... 2. Surface becomes red c. Core is collapsing as helium is converted to carbon d. Eventually all nuclear fuel is used e. Gravity squeezes the star 5. Burnout and death a. Final stage depends on mass b. Possibilities 1. Low-mass star a. 0.5 solar mass b. Red giant collapses c. Becomes a white dwarf 2. ...
... 2. Surface becomes red c. Core is collapsing as helium is converted to carbon d. Eventually all nuclear fuel is used e. Gravity squeezes the star 5. Burnout and death a. Final stage depends on mass b. Possibilities 1. Low-mass star a. 0.5 solar mass b. Red giant collapses c. Becomes a white dwarf 2. ...
Journey to the Stars Educator`s Guide
... How do stars differ? Though stars may look like similar points of light from our perspective on Earth, they actually differ from each other in many ways. Stars vary in their mass, size, temperature, color, luminosity, and age. They differ in their distance from Earth, and some orbit one or more othe ...
... How do stars differ? Though stars may look like similar points of light from our perspective on Earth, they actually differ from each other in many ways. Stars vary in their mass, size, temperature, color, luminosity, and age. They differ in their distance from Earth, and some orbit one or more othe ...
New light on our Sun`s fate - Space Telescope Science Institute
... began to wonder how stars evolve and thought that perhaps they “move” across the H-R diagram. Over decades, we’ve learned that a star’s mass controls its life; along the way, that property also determines its brightness and temperature. We now summarize all stages of stellar evolution on this import ...
... began to wonder how stars evolve and thought that perhaps they “move” across the H-R diagram. Over decades, we’ve learned that a star’s mass controls its life; along the way, that property also determines its brightness and temperature. We now summarize all stages of stellar evolution on this import ...
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.