Chapter 22
... SUN – FUSION – atoms FUSE together **It is estimated that the sun has enough mass for nuclear fusion to continue for 5 billion more years! ...
... SUN – FUSION – atoms FUSE together **It is estimated that the sun has enough mass for nuclear fusion to continue for 5 billion more years! ...
E1 Introduction to the Universe NEW
... Comets • Giant dirty snow balls (ice and dust) (diameter 100m - 50 km?) • Very elliptical orbits • Short period (T < 200 yrs) and long period (could be thousands of years) • Oort cloud • Tail(s) always point away from the sun • Evaporate as they get closer to the sun ...
... Comets • Giant dirty snow balls (ice and dust) (diameter 100m - 50 km?) • Very elliptical orbits • Short period (T < 200 yrs) and long period (could be thousands of years) • Oort cloud • Tail(s) always point away from the sun • Evaporate as they get closer to the sun ...
The formation of the Solar System I. Stellar context
... All planets orbit Sun in same sense (counterclockwise viewed from N) All planets orbit in almost same plane, with e~0 Sun contains 99.9% of Solar System's mass. Inner planets rocky, outer planets/satellites icy or ...
... All planets orbit Sun in same sense (counterclockwise viewed from N) All planets orbit in almost same plane, with e~0 Sun contains 99.9% of Solar System's mass. Inner planets rocky, outer planets/satellites icy or ...
SunStructure17
... Our sun is a medium sized, medium temperature (yellow) star in the middle of its life cycle. It only looks big because it’s so much closer to us than any other star ...
... Our sun is a medium sized, medium temperature (yellow) star in the middle of its life cycle. It only looks big because it’s so much closer to us than any other star ...
The Whole Darn Thing!
... Galaxies have too much gravity considering how much mass we see; what is this “dark matter?” Stars in the halo are mostly population II stars in globular clusters. The halo is old! Stars in the disc are mostly population I stars, and young bright ones are in the spiral arms. Elliptical galaxies are ...
... Galaxies have too much gravity considering how much mass we see; what is this “dark matter?” Stars in the halo are mostly population II stars in globular clusters. The halo is old! Stars in the disc are mostly population I stars, and young bright ones are in the spiral arms. Elliptical galaxies are ...
Objective 10 Study Guide
... A planet with a prograde rotation appears to spin counterclockwise as seen from above its ...
... A planet with a prograde rotation appears to spin counterclockwise as seen from above its ...
Unit E - Topic 1.0 Notes
... Used for….when the vast distances beyond the solar system, out to the stars and galaxies are too great for astronomical units. It equals the distance that light travels in one year Speed of light is…300 000 km/s Light travels 9.5 trillion km in 1 year The nearest star (after the sun) is 4 light year ...
... Used for….when the vast distances beyond the solar system, out to the stars and galaxies are too great for astronomical units. It equals the distance that light travels in one year Speed of light is…300 000 km/s Light travels 9.5 trillion km in 1 year The nearest star (after the sun) is 4 light year ...
Planets and Other Space Rocks Notes
... • Its year is just under 165 Earth years, and its day is just over 19 hours. • The temperature at the top is −213℃. • It has a tilt, so it has seasons like Earth, but they are mild. ...
... • Its year is just under 165 Earth years, and its day is just over 19 hours. • The temperature at the top is −213℃. • It has a tilt, so it has seasons like Earth, but they are mild. ...
Exploring Our Solar System
... If you pinched 100 grains of sand between your fingers and you counted out 98 of those grains, that would represent the mass of the sun. The other two grains of sand would represent the mass of the combination of all the planets, planetoids, moons, asteroids, meteors and comets. ...
... If you pinched 100 grains of sand between your fingers and you counted out 98 of those grains, that would represent the mass of the sun. The other two grains of sand would represent the mass of the combination of all the planets, planetoids, moons, asteroids, meteors and comets. ...
PowerPoint file - High Point University
... that Pluto formed as part of a larger group of comet-like objects, which should still be there. • 1980s: Theorists predicted 200 million objects between 34 and 50 AU. ...
... that Pluto formed as part of a larger group of comet-like objects, which should still be there. • 1980s: Theorists predicted 200 million objects between 34 and 50 AU. ...
PowerPoint Presentation - AST121 Introduction to Astronomy
... that Pluto formed as part of a larger group of comet-like objects, which should still be there. • 1980s: Theorists predicted 200 million objects between 34 and 50 AU. ...
... that Pluto formed as part of a larger group of comet-like objects, which should still be there. • 1980s: Theorists predicted 200 million objects between 34 and 50 AU. ...
1 - Quia
... 23. Which of the following is not an inner planet? a. Venus c. Jupiter b. Mars d. Earth 24. ____________ allows Earth to sustain life. a. An abundance of liquid water c. The moon’s craters b. An oxygen-rich atmosphere d. both (a) and (b) 25. The inner planets are separated from the outer planets by ...
... 23. Which of the following is not an inner planet? a. Venus c. Jupiter b. Mars d. Earth 24. ____________ allows Earth to sustain life. a. An abundance of liquid water c. The moon’s craters b. An oxygen-rich atmosphere d. both (a) and (b) 25. The inner planets are separated from the outer planets by ...
Chapter 29 Our Solar System
... All of the planets (& former planets) and their satellites orbit the Sun in the same direction, and all their orbits, except Pluto's lie near the same plane. ...
... All of the planets (& former planets) and their satellites orbit the Sun in the same direction, and all their orbits, except Pluto's lie near the same plane. ...
More evidence for ninth planet roaming solar system`s
... very close to the Sun at one point on their orbital journey, only to swing far out into space once they As the search for a hypothetical, unseen planet far, pass the Sun, on long elliptical orbits that take far beyond Neptune's orbit continues, research by these strange mini worlds hundreds of AUs a ...
... very close to the Sun at one point on their orbital journey, only to swing far out into space once they As the search for a hypothetical, unseen planet far, pass the Sun, on long elliptical orbits that take far beyond Neptune's orbit continues, research by these strange mini worlds hundreds of AUs a ...
astrophysics 2009
... -between Mars and Jupiter there is a gap that is filled with many smaller bodies called asteroids or minor planets. -Comets are of a mixture of ice, dust and gas, just a few km across. Most comets orbit the sun in parabolic orbits. Sun ...
... -between Mars and Jupiter there is a gap that is filled with many smaller bodies called asteroids or minor planets. -Comets are of a mixture of ice, dust and gas, just a few km across. Most comets orbit the sun in parabolic orbits. Sun ...
First evidence for water ice clouds found outside solar
... characterized. Their findings are the result of 151 images taken over three nights and combined. The object, named WISE J085510.83-071442.5, or W0855, was first seen by NASA's Wide-Field Infrared Explorer mission and published earlier this year. But it was not known if it could be detected by Earth- ...
... characterized. Their findings are the result of 151 images taken over three nights and combined. The object, named WISE J085510.83-071442.5, or W0855, was first seen by NASA's Wide-Field Infrared Explorer mission and published earlier this year. But it was not known if it could be detected by Earth- ...
Slide 1
... Comets • Giant dirty snow balls (ice and dust) (diameter 100m - 50 km?) • Very elliptical orbits • Short period (T < 200 yrs) and long period (could be thousands of years) • Oort cloud • Tail(s) always point away from the sun • Evaporate as they get closer to the sun ...
... Comets • Giant dirty snow balls (ice and dust) (diameter 100m - 50 km?) • Very elliptical orbits • Short period (T < 200 yrs) and long period (could be thousands of years) • Oort cloud • Tail(s) always point away from the sun • Evaporate as they get closer to the sun ...
13Overview1
... • Contents of the solar system – Sun: by far most massive. Only object in SS producing energy (by nuclear reactions in its core) – Planets: larger objects orbiting the Sun. Traditionally, there were 9 (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto), now usually considered eigh ...
... • Contents of the solar system – Sun: by far most massive. Only object in SS producing energy (by nuclear reactions in its core) – Planets: larger objects orbiting the Sun. Traditionally, there were 9 (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto), now usually considered eigh ...
07 May: Omnis In Exitu Eius Pulchrima
... velocity variations as large as observed, a planet would have to be as large as Jupiter, but much, much closer to the star than Mercury is to the Sun ...
... velocity variations as large as observed, a planet would have to be as large as Jupiter, but much, much closer to the star than Mercury is to the Sun ...
BIO 10 Lecture 2
... – Most of the H and He are found in the sun; rocky planets made of heavier elements (like Earth) are found close to the sun, while gaseous planets (Jupiter, Saturn, Uranus, Neptune) are found further out ...
... – Most of the H and He are found in the sun; rocky planets made of heavier elements (like Earth) are found close to the sun, while gaseous planets (Jupiter, Saturn, Uranus, Neptune) are found further out ...
Comets, Asteroids, Meteoroids
... Question of the Day • What is most likely the object that hit Earth in the picture below? A comet, asteroid, meteoroid, meteor, or meteorite? • Most likely it was an asteroid • Why study comets, asteroids, & meteoroids. • Because they threaten the existence of life on Earth ...
... Question of the Day • What is most likely the object that hit Earth in the picture below? A comet, asteroid, meteoroid, meteor, or meteorite? • Most likely it was an asteroid • Why study comets, asteroids, & meteoroids. • Because they threaten the existence of life on Earth ...
Picture Match Words Giant Planet Phase Habitable Zone Fluctuate
... A ___________________is established by different types of stars; this zone allows acceptable temperatures for liquid water to exist. ...
... A ___________________is established by different types of stars; this zone allows acceptable temperatures for liquid water to exist. ...
Solar System
The Solar System comprises the Sun and the planetary system that orbits it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies such as comets and asteroids. Of those that orbit the Sun indirectly, two are larger than the smallest planet.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed largely of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.The Solar System also contains smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, populations of trans-Neptunian objects composed mostly of ices, and beyond them a newly discovered population of sednoids. Within these populations are several dozen to possibly tens of thousands of objects large enough to have been rounded by their own gravity. Such objects are categorized as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed ""moons"" after the Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind; it extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located in the Orion Arm, 26,000 light-years from the center of the Milky Way.