Notes (PowerPoint)
... • Star – source of light (gravity has crushed atoms to start nuclear reactions) • Planet – large, opaque, nonluminous, circles a star (Pluto is on the smallish side) • Moon – a natural satellite of a planet • Asteroid – Small planet, size from 1 km (.6 mi) to ...
... • Star – source of light (gravity has crushed atoms to start nuclear reactions) • Planet – large, opaque, nonluminous, circles a star (Pluto is on the smallish side) • Moon – a natural satellite of a planet • Asteroid – Small planet, size from 1 km (.6 mi) to ...
Comets vs. Asteroids
... Asteroids have not change much in billions of years. They can tell us a lot about what the early Solar System was like. NASA’s Dawn mission is studying the two most massive asteroids up close. It orbited Vesta for 13 months and is on its way to orbit Ceres. Another asteroid mission, NEAR Shoemaker, ...
... Asteroids have not change much in billions of years. They can tell us a lot about what the early Solar System was like. NASA’s Dawn mission is studying the two most massive asteroids up close. It orbited Vesta for 13 months and is on its way to orbit Ceres. Another asteroid mission, NEAR Shoemaker, ...
FREE Sample Here
... looking farther away means looking further back in time. The observable universe is the portion of the entire universe that we can, in principle, see. It is presumably about 14 billion light-years in radius because light from more than 14 billion light-years away could not yet have reached us during ...
... looking farther away means looking further back in time. The observable universe is the portion of the entire universe that we can, in principle, see. It is presumably about 14 billion light-years in radius because light from more than 14 billion light-years away could not yet have reached us during ...
Planets, Moons, and Stars
... Celsius). This is hot enough to melt Earth! The Sun is about 150 million kilometers (93 million miles) away from Earth. If you could travel there by car on a highway, it would take more than 160 years. Even though the Sun is that far away, it provides Earth with light and heat. Life on Earth could n ...
... Celsius). This is hot enough to melt Earth! The Sun is about 150 million kilometers (93 million miles) away from Earth. If you could travel there by car on a highway, it would take more than 160 years. Even though the Sun is that far away, it provides Earth with light and heat. Life on Earth could n ...
Science and the Universe
... Sun at its center and nine planets orbiting the Sun – The Earth is one of the nine planets • The Sun is a star – Its diameter is 1.5 million km • A planet is a body of significant size that orbits a star and does not produce its own light • A star is large body which (at some point during its life) ...
... Sun at its center and nine planets orbiting the Sun – The Earth is one of the nine planets • The Sun is a star – Its diameter is 1.5 million km • A planet is a body of significant size that orbits a star and does not produce its own light • A star is large body which (at some point during its life) ...
EM review
... Measuring the brightness of stars (and NEAS) The observed brightness of a star is given by its apparent magnitude. (First devised by Hipparchus who made a catalogue of about 850) The brightest stars: m=1. Dimmest stars (visible to the naked eye) m=6. The magnitude scale has been shown to be loga ...
... Measuring the brightness of stars (and NEAS) The observed brightness of a star is given by its apparent magnitude. (First devised by Hipparchus who made a catalogue of about 850) The brightest stars: m=1. Dimmest stars (visible to the naked eye) m=6. The magnitude scale has been shown to be loga ...
THE SUN - OoCities
... the future of the Earth is the fact that tidal friction will slow down the Earth's rotation until, in four billion years, its rotation will match that of the Moon, turning once in 30 of our present days. The evolution of the Sun should continue on the same path as that taken by most stars. As the co ...
... the future of the Earth is the fact that tidal friction will slow down the Earth's rotation until, in four billion years, its rotation will match that of the Moon, turning once in 30 of our present days. The evolution of the Sun should continue on the same path as that taken by most stars. As the co ...
Light and shadow from distant worlds
... was a startling discovery1. This gas-giant planet of half a Jupiter mass orbits its star at a distance six times closer than the radius of Mercury’s orbit in our own Solar System. The exoplanet, 51 Peg b, was discovered by measuring the line-of-sight (radial) velocity of the star as it orbited the c ...
... was a startling discovery1. This gas-giant planet of half a Jupiter mass orbits its star at a distance six times closer than the radius of Mercury’s orbit in our own Solar System. The exoplanet, 51 Peg b, was discovered by measuring the line-of-sight (radial) velocity of the star as it orbited the c ...
black holes activity
... the time it get to 200,000 km out it is turned into energy and through convection transferred towards the surface C.What is Granulation? -Looking at the surface of the Sun it looks highly ________________ -Each granule is about 1000 km across, has a lifetime of __________________ and depending on it ...
... the time it get to 200,000 km out it is turned into energy and through convection transferred towards the surface C.What is Granulation? -Looking at the surface of the Sun it looks highly ________________ -Each granule is about 1000 km across, has a lifetime of __________________ and depending on it ...
slides
... The gas also starts out hot, and initially is kept hot by the white dwarf, but it will also cool off over time. So the lifetime of a PN is relatively short, just a few 10s of thousands of years. ...
... The gas also starts out hot, and initially is kept hot by the white dwarf, but it will also cool off over time. So the lifetime of a PN is relatively short, just a few 10s of thousands of years. ...
PH607lec12
... QSOs, we have speculated on whether the centre of our galaxy might contain a black hole "Galactic Centre" here will mean the central ~10 parsecs of the Galaxy. It contains: 1. Young stars: the stellar population including evidence for star formation there in the last 50 million years or even less 2 ...
... QSOs, we have speculated on whether the centre of our galaxy might contain a black hole "Galactic Centre" here will mean the central ~10 parsecs of the Galaxy. It contains: 1. Young stars: the stellar population including evidence for star formation there in the last 50 million years or even less 2 ...
The Sun and How to Observe It For further volumes: www.springer.com/series/5338
... is a star, a sphere of glowing hot gases, one star in a massive collection called the Milky Way galaxy. Enormous pressures exist inside the Sun, creating an environment unlike anything we could possibly experience on Earth. Nuclear forces that influence conditions on our Earth and the other planets ...
... is a star, a sphere of glowing hot gases, one star in a massive collection called the Milky Way galaxy. Enormous pressures exist inside the Sun, creating an environment unlike anything we could possibly experience on Earth. Nuclear forces that influence conditions on our Earth and the other planets ...
Lecture 13
... • Off the main sequence stellar properties depend on both mass and age. • These stars have finished fusing H to He in their cores are no longer on the main sequence. • They may be fusing He to Carbon in their core or fusing H to He in shell outside the core … but there is no H to He fusion in the co ...
... • Off the main sequence stellar properties depend on both mass and age. • These stars have finished fusing H to He in their cores are no longer on the main sequence. • They may be fusing He to Carbon in their core or fusing H to He in shell outside the core … but there is no H to He fusion in the co ...
Ch 28-31
... The Law of Orbits: All planets move in elliptical orbits, with the sun at 1 focus. a. An ellipse is … oval shape centered on 2 points instead of 1 point. b. The orbital period of a planet is … how long it takes for it to travel a complete orbit around the Sun. c. We call this a year! ...
... The Law of Orbits: All planets move in elliptical orbits, with the sun at 1 focus. a. An ellipse is … oval shape centered on 2 points instead of 1 point. b. The orbital period of a planet is … how long it takes for it to travel a complete orbit around the Sun. c. We call this a year! ...
File
... of hot gas with atomic nuclei and electrons whizzing around. • Nuclei collide and sometimes they “stick” together to form a heavier nucleus (and heavier element). • Fusion- the process by which two atomic nuclei fuse together ...
... of hot gas with atomic nuclei and electrons whizzing around. • Nuclei collide and sometimes they “stick” together to form a heavier nucleus (and heavier element). • Fusion- the process by which two atomic nuclei fuse together ...
Document
... stay for a while, and eventually move through giant stages before becoming white dwarfs. • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova. ...
... stay for a while, and eventually move through giant stages before becoming white dwarfs. • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova. ...
Week 3 - OSU Astronomy
... Smallest structures I know of in outer space Absorb some light, so must be solid particles Can learn about their structure by the way they absorb and scatter light ...
... Smallest structures I know of in outer space Absorb some light, so must be solid particles Can learn about their structure by the way they absorb and scatter light ...
L53 SNOWBALL PLANETS AS A POSSIBLE TYPE OF WATER
... 1986; Machida & Abe 2006; Raymond et al. 2004), while comets may also deliver water after planetary formation (Chyba 1987). Another possibility is that hydrogen captured by accreting protoplanets from protoplanetary nebulae can be oxidized to produce abundant water (Ikoma & Genda 2006). Recent disco ...
... 1986; Machida & Abe 2006; Raymond et al. 2004), while comets may also deliver water after planetary formation (Chyba 1987). Another possibility is that hydrogen captured by accreting protoplanets from protoplanetary nebulae can be oxidized to produce abundant water (Ikoma & Genda 2006). Recent disco ...
Planetary system formation in thermally evolving viscous
... Neptunes and super-Earths (e.g. Kepler 11). Planets are also being discovered within binary systems, orbiting just one of the binary components (e.g. gamma Cephei) or both components in a circumbinary configuration (e.g. Kepler 16, 34, 35).1 The above planets have been discovered largely from radial- ...
... Neptunes and super-Earths (e.g. Kepler 11). Planets are also being discovered within binary systems, orbiting just one of the binary components (e.g. gamma Cephei) or both components in a circumbinary configuration (e.g. Kepler 16, 34, 35).1 The above planets have been discovered largely from radial- ...
Spica The Star - Emmi
... the mass of the Earth or 1,048 times the mass of Juipiter Spicas temperature is about 457. 490541 degrees fahrenhieght and the sun is 5778 kelvin red giant. Spicas distance from the sun is 260 light years away Spica is a blue giant the sun is yellow ...
... the mass of the Earth or 1,048 times the mass of Juipiter Spicas temperature is about 457. 490541 degrees fahrenhieght and the sun is 5778 kelvin red giant. Spicas distance from the sun is 260 light years away Spica is a blue giant the sun is yellow ...
6.E.1 Unit Test
... surface temperatures, ranging from 465 C in sunlight to 180 C in darkness. Why is there such a large range of temperatures on ...
... surface temperatures, ranging from 465 C in sunlight to 180 C in darkness. Why is there such a large range of temperatures on ...
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.