the southern astronomer
... Time) unless otherwise stated which can be considered the same as GMT i.e Summer Time, minus 1 hour. Information given, unless otherwise stated is for the 15th of the month at 21.30UT. Lunar and other phenomena in the Quick View Diary are shown to the nearest hour. Officially this month, we pass int ...
... Time) unless otherwise stated which can be considered the same as GMT i.e Summer Time, minus 1 hour. Information given, unless otherwise stated is for the 15th of the month at 21.30UT. Lunar and other phenomena in the Quick View Diary are shown to the nearest hour. Officially this month, we pass int ...
The Sun
... ▪ Corona: The outermost layer of the sun’s atmosphere. ▪ A huge region of gas that has a temperature above 1,000,000˚c ▪ It is not very dense, but it’s magnetic field can stop most subatomic particles from escaping into space ▪ Ions do escape as the Corona expands. These particles make up the solar ...
... ▪ Corona: The outermost layer of the sun’s atmosphere. ▪ A huge region of gas that has a temperature above 1,000,000˚c ▪ It is not very dense, but it’s magnetic field can stop most subatomic particles from escaping into space ▪ Ions do escape as the Corona expands. These particles make up the solar ...
Gravity - South High School
... • The general format for dividing is as follows… • (N x 10x)/(M x 10y) = (N/M) x 10x-y • First divide the N number by the M number and express as an answer. • Secondly divide the exponential parts by subtracting the exponent from the exponent in the upper number. ...
... • The general format for dividing is as follows… • (N x 10x)/(M x 10y) = (N/M) x 10x-y • First divide the N number by the M number and express as an answer. • Secondly divide the exponential parts by subtracting the exponent from the exponent in the upper number. ...
The Solar System
... Until 2006, there was no scientific definition for a planet. From 1930 to 2006, Pluto was considered the ninth planet. Scientists discovered other large objects in the Kuiper (rhymes with hyper) belt beyond Neptune’s orbit. Some scientists wanted to consider these objects planets as well. Other scie ...
... Until 2006, there was no scientific definition for a planet. From 1930 to 2006, Pluto was considered the ninth planet. Scientists discovered other large objects in the Kuiper (rhymes with hyper) belt beyond Neptune’s orbit. Some scientists wanted to consider these objects planets as well. Other scie ...
Andy Fraknoi
... If there are so many Asteroids in the Asteroid belt, how can spacecraft fly through the asteroid belt without colliding with one? What is a comet? What is the composition of comets? Where do comets normally orbit? What causes comets to shift their orbits? Why do comets have two tails? (And what are ...
... If there are so many Asteroids in the Asteroid belt, how can spacecraft fly through the asteroid belt without colliding with one? What is a comet? What is the composition of comets? Where do comets normally orbit? What causes comets to shift their orbits? Why do comets have two tails? (And what are ...
Lecture 5: Planetary system formation theories o Topics to be covered:
... Jeans’ Theory involved interaction between Sun and a very massive star in three stages: 1. Massive star passes within Roche Limit of Sun, pulling out material in the form of a filament. 2. Filament is gravitationally unstable, and breaks into series of blobs of masses greater than the Jeans’ criti ...
... Jeans’ Theory involved interaction between Sun and a very massive star in three stages: 1. Massive star passes within Roche Limit of Sun, pulling out material in the form of a filament. 2. Filament is gravitationally unstable, and breaks into series of blobs of masses greater than the Jeans’ criti ...
Chapter 13 section 2
... This is the layer that gives off the light we see from Earth. The photosphere is often called the surface of the Sun. Temperatures there are about 6,000 K. The layer above the photosphere is called the chromosphere (KROH muh sfihr). This layer is about 2,000 km thick. There is a change of zone betwee ...
... This is the layer that gives off the light we see from Earth. The photosphere is often called the surface of the Sun. Temperatures there are about 6,000 K. The layer above the photosphere is called the chromosphere (KROH muh sfihr). This layer is about 2,000 km thick. There is a change of zone betwee ...
The Sothicentric Model part 2.2
... rising ofNSirius the zodiacal stars precede, as in the Summer. shown previously, the Heliacal rising of Sirius always occurs on the same date. With a consistency great enough for the Egyptians to base their calendar off of it. Summer ...
... rising ofNSirius the zodiacal stars precede, as in the Summer. shown previously, the Heliacal rising of Sirius always occurs on the same date. With a consistency great enough for the Egyptians to base their calendar off of it. Summer ...
How Big Is Our Universe? - Harvard
... Our Milky Way galaxy of stars is so huge that even at the speed of light it would take 100,000 years to travel across it! The further a star, the fainter it looks. Astronomers use this clue to figure out the distance to very distant stars. But there’s a big challenge to this method: You need to know ...
... Our Milky Way galaxy of stars is so huge that even at the speed of light it would take 100,000 years to travel across it! The further a star, the fainter it looks. Astronomers use this clue to figure out the distance to very distant stars. But there’s a big challenge to this method: You need to know ...
Distance - Fixed Earth
... evolution of the universe, the evolutionary explanation for all that exists takes its proper place at the top of the list of deceptions that has led mankind away from the truth about the universe, the Earth, and humanity itself. Fact Seven: Though traceable to Pythagoras2, Aristarchus, et al, it was ...
... evolution of the universe, the evolutionary explanation for all that exists takes its proper place at the top of the list of deceptions that has led mankind away from the truth about the universe, the Earth, and humanity itself. Fact Seven: Though traceable to Pythagoras2, Aristarchus, et al, it was ...
February 13
... The hydrogen Balmer lines are produced by electrons absorbing a photon and jumping from the 2nd energy level to a higher energy level. How can this not take place with hydrogen still present the stellar atmosphere? ...
... The hydrogen Balmer lines are produced by electrons absorbing a photon and jumping from the 2nd energy level to a higher energy level. How can this not take place with hydrogen still present the stellar atmosphere? ...
Oct 2015 - Bays Mountain Park
... Bottom line: if you are entertained by pop culture geekdom and appreciate applying science to some unusual situations, you will very likely enjoy “Geek Physics” by Rhett Allain. ...
... Bottom line: if you are entertained by pop culture geekdom and appreciate applying science to some unusual situations, you will very likely enjoy “Geek Physics” by Rhett Allain. ...
TLW design a model that describes the position and relationship of
... Resource: Model of the Seasons gives a diagram for a classroom model that uses a globe and a flashlight in a darkened classroom to model the seasons. Hold the base of the globe so the axis is always pointed in the same direction as shown in the diagram. Shine the flashlight (representing the Sun) on ...
... Resource: Model of the Seasons gives a diagram for a classroom model that uses a globe and a flashlight in a darkened classroom to model the seasons. Hold the base of the globe so the axis is always pointed in the same direction as shown in the diagram. Shine the flashlight (representing the Sun) on ...
Midterm Study Game
... What was Copernicus’ contribution to Astronomy? Copernicus was the scientist who first believed that the Sun was the center of the solar system, not the Earth AND that all the objects in our solar system revolve around the sun. Galileo also helped confirm this with his trusty telescope! ...
... What was Copernicus’ contribution to Astronomy? Copernicus was the scientist who first believed that the Sun was the center of the solar system, not the Earth AND that all the objects in our solar system revolve around the sun. Galileo also helped confirm this with his trusty telescope! ...
The Black Drop effect - ROSS
... Historically, the Venus transits were the main method for the determination of the Astronomical Unit (AU, Sun−Earth average distance) and, therefore, the scale of the Solar System. Edmond Halley presented a method to determine the AU by measuring the durations of the passage of Venus in front of the ...
... Historically, the Venus transits were the main method for the determination of the Astronomical Unit (AU, Sun−Earth average distance) and, therefore, the scale of the Solar System. Edmond Halley presented a method to determine the AU by measuring the durations of the passage of Venus in front of the ...
The Next Step: Exponential Life 1 — PB
... The Earth has existed for forty-five million centuries —and even longer timespans lie ahead before the Sun dies. But even in this vast time-perspective, the present century is special. It is the first when humans may establish communities away from the Earth. And it is the first when they may creat ...
... The Earth has existed for forty-five million centuries —and even longer timespans lie ahead before the Sun dies. But even in this vast time-perspective, the present century is special. It is the first when humans may establish communities away from the Earth. And it is the first when they may creat ...
Selected Physical and Astronomical Constants Conversion Factors
... comfortable? Do I see the stars overhead as I fall into a black hole? If so, do these stars change position or color as I fall? How fast do I fall? Does my speed reach or exceed the speed of light? Once inside, can I receive messages and packages from my friends on the outside? Is it true that, once ...
... comfortable? Do I see the stars overhead as I fall into a black hole? If so, do these stars change position or color as I fall? How fast do I fall? Does my speed reach or exceed the speed of light? Once inside, can I receive messages and packages from my friends on the outside? Is it true that, once ...
How common are habitable planets?
... Astronomers answer key question: How common are habitable planets? 4 November 2013 temperature conducive to life. "What this means is, when you look up at the thousands of stars in the night sky, the nearest sunlike star with an Earth-size planet in its habitable zone is probably only 12 light years ...
... Astronomers answer key question: How common are habitable planets? 4 November 2013 temperature conducive to life. "What this means is, when you look up at the thousands of stars in the night sky, the nearest sunlike star with an Earth-size planet in its habitable zone is probably only 12 light years ...
Study Guide for Astronomy 10A Prologue What is the purpose of
... If there are so many Asteroids in the Asteroid belt, how can spacecraft fly through the asteroid belt without colliding with one? What is a comet? What is the composition of comets? Where do comets normally orbit? What causes comets to shift their orbits? Why do comets have two tails? (And what are ...
... If there are so many Asteroids in the Asteroid belt, how can spacecraft fly through the asteroid belt without colliding with one? What is a comet? What is the composition of comets? Where do comets normally orbit? What causes comets to shift their orbits? Why do comets have two tails? (And what are ...
Mars Science Laboratory Makes First Contact Mysterious Particles
... · The brightest star in the northeast these evenings is Capella. Look far to its right for Aldebaran in the east, with the dim Hyades stars scattered around it. Above Aldebaran and the Hyades is the smaller but brighter Pleiades cluster. Friday, Dec. 2 · First-quarter Moon (exact at 4:52 a.m. on thi ...
... · The brightest star in the northeast these evenings is Capella. Look far to its right for Aldebaran in the east, with the dim Hyades stars scattered around it. Above Aldebaran and the Hyades is the smaller but brighter Pleiades cluster. Friday, Dec. 2 · First-quarter Moon (exact at 4:52 a.m. on thi ...
Astronomy Club
... As these observation came up the whole community was surprised to see that flux observed is nearly half of what is predicted from standard stellar physics. This thirty-year mystery persists in the deficit of about a half in the numbers of neutrinos detected compared to expectations, the socalled "So ...
... As these observation came up the whole community was surprised to see that flux observed is nearly half of what is predicted from standard stellar physics. This thirty-year mystery persists in the deficit of about a half in the numbers of neutrinos detected compared to expectations, the socalled "So ...
Lecture 39: Life in the Universe The Main Point Simple Life vs
... Encourage substantive debate on the evidence by knowledgeable proponents of all points of view. ...
... Encourage substantive debate on the evidence by knowledgeable proponents of all points of view. ...
Welcome to Physics 112N - Physics, Computer Science and
... • Physics is the study of the fundamental laws of nature, which are the laws that underlie all physical phenomena in the universe. • These laws can be expressed in terms of mathematical equations. • We can make quantitative comparisons between the predictions of theory and the observations of experi ...
... • Physics is the study of the fundamental laws of nature, which are the laws that underlie all physical phenomena in the universe. • These laws can be expressed in terms of mathematical equations. • We can make quantitative comparisons between the predictions of theory and the observations of experi ...
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. This model served as the predominant cosmological system in many ancient civilizations such as ancient Greece including the noteworthy systems of Aristotle (see Aristotelian physics) and Ptolemy. As such, they believed that the Sun, Moon, stars, and naked eye planets circled Earth.Two commonly made observations supported the idea that Earth was the center of the Universe. The stars, the sun, and planets appear to revolve around Earth each day, making Earth the center of that system. The stars were thought to be on a celestial sphere, with the earth at its center, that rotated each day, using a line through the north and south pole as an axis. The stars closest to the equator appeared to rise and fall the greatest distance, but each star circled back to its rising point each day. The second observation supporting the geocentric model was that the Earth does not seem to move from the perspective of an Earth-bound observer, and that it is solid, stable, and unmoving.Ancient Roman and medieval philosophers usually combined the geocentric model with a spherical Earth. It is not the same as the older flat Earth model implied in some mythology, as was the case with the biblical and postbiblical Latin cosmology. The ancient Jewish Babylonian uranography pictured a flat Earth with a dome-shaped rigid canopy named firmament placed over it. (רקיע- rāqîa').However, the ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture until the 17th century through the synthesis of theories by Copernicus and Kepler.The astronomical predictions of Ptolemy's geocentric model were used to prepare astrological and astronomical charts for over 1500 years. The geocentric model held sway into the early modern age, but from the late 16th century onward was gradually superseded by the heliocentric model of Copernicus, Galileo and Kepler. There was much resistance to the transition between these two theories. Christian theologians were reluctant to reject a theory that agreed with Bible passages (e.g. ""Sun, stand you still upon Gibeon"", Joshua 10:12 – King James 2000 Bible). Others felt a new, unknown theory could not subvert an accepted consensus for geocentrism.