Comparing Earth, Sun and Jupiter
... ¾ Venus: most Earthlike in terms of size, composition. Covered in thick clouds. ¾ Earth: only planet with liquid surface water ¾ Mars: red surface due to high iron content. Thin, dry atmosphere ¾ Jupiter, Saturn, Neptune, Uranus: Gas giants with many small moons • Smaller bodies found in the asteroi ...
... ¾ Venus: most Earthlike in terms of size, composition. Covered in thick clouds. ¾ Earth: only planet with liquid surface water ¾ Mars: red surface due to high iron content. Thin, dry atmosphere ¾ Jupiter, Saturn, Neptune, Uranus: Gas giants with many small moons • Smaller bodies found in the asteroi ...
The wonders of our universe
... The Earth is part of our solar system. At the centre of this is the sun, which is the solar system’s star. Our solar system consists of the sun and objects connected to it by gravity – eight planets and some moons. The four smaller planets, Mercury, Venus, Earth, and Mars, are made of rock and metal ...
... The Earth is part of our solar system. At the centre of this is the sun, which is the solar system’s star. Our solar system consists of the sun and objects connected to it by gravity – eight planets and some moons. The four smaller planets, Mercury, Venus, Earth, and Mars, are made of rock and metal ...
Astronomy
... 25. A visual representation of the temperature and luminosity of stars is called: 26. Relatively dark spots on the sun that contains intense magnetic fields are known as: 27. These reactions join the nuclei of atoms to form more massive nuclei: 28. Eruptions on the solar surface that return back to ...
... 25. A visual representation of the temperature and luminosity of stars is called: 26. Relatively dark spots on the sun that contains intense magnetic fields are known as: 27. These reactions join the nuclei of atoms to form more massive nuclei: 28. Eruptions on the solar surface that return back to ...
Chapter 16 - The Solar System
... From Neptune to Eris Home for comets and cometary material Exploration slated for 2015 ...
... From Neptune to Eris Home for comets and cometary material Exploration slated for 2015 ...
PSC1010 Introduction to Astronomy Quiz #3 Review Thursday 3
... (or attract) even more gas+dust: this is in addition to infall ---> more gas+dust means more mass means more friction and accretion means more mass ---> eventually, when the core mass, pressure and temperature are high enough, nuclear fusion (hydrogen --> helium) ignites...a star is born! The rotat ...
... (or attract) even more gas+dust: this is in addition to infall ---> more gas+dust means more mass means more friction and accretion means more mass ---> eventually, when the core mass, pressure and temperature are high enough, nuclear fusion (hydrogen --> helium) ignites...a star is born! The rotat ...
Jovian Planets
... • All have a much larger radii than the Earth • All are much more massive than the Earth, but they’re much less dense (0.7-1.6 g/cm3, where 1 g/cm3 is the density of water) • Far from the Sun and MANY moons • Mostly liquid, but have rock/iron cores • All are rotating very quickly (Jupiter has a radi ...
... • All have a much larger radii than the Earth • All are much more massive than the Earth, but they’re much less dense (0.7-1.6 g/cm3, where 1 g/cm3 is the density of water) • Far from the Sun and MANY moons • Mostly liquid, but have rock/iron cores • All are rotating very quickly (Jupiter has a radi ...
Astronomy - cloudfront.net
... the Earth and a Mars sized object in the early days of the Solar System (the collision theory). C. The Moon was originally a bulge on the Earth that was flung off by the rapidly spinning Earth (fission theory). D. The Moon formed somewhere else and was later captured by the Earth (capture theory). ...
... the Earth and a Mars sized object in the early days of the Solar System (the collision theory). C. The Moon was originally a bulge on the Earth that was flung off by the rapidly spinning Earth (fission theory). D. The Moon formed somewhere else and was later captured by the Earth (capture theory). ...
... 2. Had you been on Earth around the time of its formation (a few tens of millions of years after the Sun's), would the Sun then look brighter or fainter than it does today? The Sun on the Main Sequence 3. Is the Sun currently getting brighter, or fainter? 4. Once temperatures at Earth's surface reac ...
Search for Life in the Universe
... – Looks pretty straightforward, but we don’t know the details ...
... – Looks pretty straightforward, but we don’t know the details ...
Mountain Skies - Pisgah Astronomical Research Institute
... ironically, was a list of objects not to look at if you were looking for comets. Generally, when comets are first discovered optically, they appear as faint, fuzzy objects that move against the pattern of background stars. The objects ...
... ironically, was a list of objects not to look at if you were looking for comets. Generally, when comets are first discovered optically, they appear as faint, fuzzy objects that move against the pattern of background stars. The objects ...
Inner Planets
... The inner planets are also called the terrestrial planets because they are more like the planet Earth. Mercury and Venus have no moons. Venus is the hottest planet at 900 degrees. Venus is known as the "morning star" or the "evening star" since it is visible and quite bright at either dawn or dusk. ...
... The inner planets are also called the terrestrial planets because they are more like the planet Earth. Mercury and Venus have no moons. Venus is the hottest planet at 900 degrees. Venus is known as the "morning star" or the "evening star" since it is visible and quite bright at either dawn or dusk. ...
688 Chapter 21 Review - District 196 e
... 3.8 × 1026 watts and the distance between the sun and Earth is 150 × 109 meters. b. Suppose Earth were orbiting Alpha Centaurii A, the nearest star to Earth. This star has a luminosity of 5.7 × 1026 watts. Calculate the intensity of light at Earth’s orbit around Alpha Centaurii A and discuss whether ...
... 3.8 × 1026 watts and the distance between the sun and Earth is 150 × 109 meters. b. Suppose Earth were orbiting Alpha Centaurii A, the nearest star to Earth. This star has a luminosity of 5.7 × 1026 watts. Calculate the intensity of light at Earth’s orbit around Alpha Centaurii A and discuss whether ...
Observing the Planets
... – (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape2, – (c) has not cleared the neighbourhood around its orbit, and – (d) is not a satellite. ...
... – (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape2, – (c) has not cleared the neighbourhood around its orbit, and – (d) is not a satellite. ...
Milky Way Galaxy
... gravitationally bound collection of roughly a hundred billion stars. Our Sun is one of these stars and is located roughly 24,000 light years (or 8000 parsecs) from the center of our the Milky Way. COBE image of the Milky Way: (Courtesy of Ned Wright ...
... gravitationally bound collection of roughly a hundred billion stars. Our Sun is one of these stars and is located roughly 24,000 light years (or 8000 parsecs) from the center of our the Milky Way. COBE image of the Milky Way: (Courtesy of Ned Wright ...
sun notes
... Top layer of the Sun’s atmosphere. It extends several million kilometers from the top of the chromosphere. It has a temperature range of 1 million____ to 2 million__ Kelvin. The _density____ of the gas in the corona is so low that it can only be seen during a total solar eclipse. o Gas flows out ...
... Top layer of the Sun’s atmosphere. It extends several million kilometers from the top of the chromosphere. It has a temperature range of 1 million____ to 2 million__ Kelvin. The _density____ of the gas in the corona is so low that it can only be seen during a total solar eclipse. o Gas flows out ...
exercise 3
... Nine major planets are currently known. They are commonly divided into two groups: the inner planets (Mercury, Venus, Earth, and Mars) and the outer planets (Jupiter, Saturn, Uranus, and Neptune). The inner planets are small and are composed primarily of rock and iron. The outer planets are much lar ...
... Nine major planets are currently known. They are commonly divided into two groups: the inner planets (Mercury, Venus, Earth, and Mars) and the outer planets (Jupiter, Saturn, Uranus, and Neptune). The inner planets are small and are composed primarily of rock and iron. The outer planets are much lar ...
Diapositiva 1 - La Escuelona
... are terrestial planets. The are small, and mainly made up of rock. Jupiter, Saturn, Uranus and Neptune are called gas giants because the are large and are made up of gases. Natural satellites: are smaller celectial bodies, such as moons, which orbit their planet. ...
... are terrestial planets. The are small, and mainly made up of rock. Jupiter, Saturn, Uranus and Neptune are called gas giants because the are large and are made up of gases. Natural satellites: are smaller celectial bodies, such as moons, which orbit their planet. ...
Attachment
... neighbouring region of planetestimals. The term planet is ancient, with ties to history, science, mythology, and religion. ...
... neighbouring region of planetestimals. The term planet is ancient, with ties to history, science, mythology, and religion. ...
Study Guide for Astronomy
... Ptolemy – developed the Earth-centered theory of universe (called Geocentric) Copernicus – developed the Sun-centered theory of universe (called Heliocentric) Day – length of time it takes Earth to rotate once on its axis, approximately 24 hours Month – length of time it takes the moon to orbit once ...
... Ptolemy – developed the Earth-centered theory of universe (called Geocentric) Copernicus – developed the Sun-centered theory of universe (called Heliocentric) Day – length of time it takes Earth to rotate once on its axis, approximately 24 hours Month – length of time it takes the moon to orbit once ...
Can you write numbers in scientific notation
... What needs to happen for a protostar to become a main sequence star? What are the properties of a main sequence star? How does a star’s mass effect the Luminosity, Temperature, Size, and lifespan of a star’s life? Can you calculate the physical properties of a main sequence star using the equations ...
... What needs to happen for a protostar to become a main sequence star? What are the properties of a main sequence star? How does a star’s mass effect the Luminosity, Temperature, Size, and lifespan of a star’s life? Can you calculate the physical properties of a main sequence star using the equations ...
Article on Pluto (for 1st science news)
... This illustration of the largest known Kuiper Belt Objects shows Xena slightly larger than Pluto. (Credit: NASA, ESA, and A. Feild (STScI)) The ruling effectively settles a year-long controversy about whether the spherical body announced last year and informally named "Xena" would rise to planetary ...
... This illustration of the largest known Kuiper Belt Objects shows Xena slightly larger than Pluto. (Credit: NASA, ESA, and A. Feild (STScI)) The ruling effectively settles a year-long controversy about whether the spherical body announced last year and informally named "Xena" would rise to planetary ...
REVIEW FOR ASTRONOMY FINAL EXAM
... 35. What is the significance of fusion, and where does it occur in the sun? 36. How long does it take light to reach the earth from the Sun? 37. Sunspots and what they tell us. Why are CME’s so dangerous to Earth and humans? 38. What are the two major categories of planets? What evidence do they pro ...
... 35. What is the significance of fusion, and where does it occur in the sun? 36. How long does it take light to reach the earth from the Sun? 37. Sunspots and what they tell us. Why are CME’s so dangerous to Earth and humans? 38. What are the two major categories of planets? What evidence do they pro ...
friends of the planetarium newsletter
... has beamed back close-up photographs of asteroid Lutetia, an ancient, cratered relic from the dawn of the solar system. Scientists are abuzz about the stunning images, which reveal a worldlet of haunting, alien beauty. Asteroid Lutetia has been a target of interest among astronomers for many years. ...
... has beamed back close-up photographs of asteroid Lutetia, an ancient, cratered relic from the dawn of the solar system. Scientists are abuzz about the stunning images, which reveal a worldlet of haunting, alien beauty. Asteroid Lutetia has been a target of interest among astronomers for many years. ...
THE SUN: OUR STAR
... Point A is where the Sun starts Hydrogen fusion Point B is where about half of the supply of the hydrogen in the core has been used up. This is where the Sun is in its lifetime right now. Point C is reached when there is no more hydrogen in the core and the fusion of hydrogen starts in the shell aro ...
... Point A is where the Sun starts Hydrogen fusion Point B is where about half of the supply of the hydrogen in the core has been used up. This is where the Sun is in its lifetime right now. Point C is reached when there is no more hydrogen in the core and the fusion of hydrogen starts in the shell aro ...
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.