
PTYS/ASTR 206 – Section 2 - Lunar and Planetary Laboratory
... Which of the three spectra (a, b, or d) would be from the star that is moving the fastest? Would this star be moving toward or away form the observer? Explain. Star b is moving the fastest and directed away from the observer because the absorption lines are shifted by the largest amount (from those ...
... Which of the three spectra (a, b, or d) would be from the star that is moving the fastest? Would this star be moving toward or away form the observer? Explain. Star b is moving the fastest and directed away from the observer because the absorption lines are shifted by the largest amount (from those ...
We Are Stardust: Synthesis of the Elements Essential for Life Aparna
... 3 4He → 12C at temp. = 100 million degrees; carbon → nitrogen and oxygen at temp. = several hundred million degrees. • Thus, a general pattern emerges: when the star exhausts one fuel, it can no longer support itself against gravity, so it contracts until it reaches a core temperature that can ignit ...
... 3 4He → 12C at temp. = 100 million degrees; carbon → nitrogen and oxygen at temp. = several hundred million degrees. • Thus, a general pattern emerges: when the star exhausts one fuel, it can no longer support itself against gravity, so it contracts until it reaches a core temperature that can ignit ...
Not too hot, not too cold: New Earth-like planet could
... diminishes into the perpetual darkness of night. This would be the most hospitable place for life to exist because there would be a constant gradient of temperatures from very hot to very cold, Professor Vogt said. "It could be quite a hospitable place provided the atmosphere is not made of solid am ...
... diminishes into the perpetual darkness of night. This would be the most hospitable place for life to exist because there would be a constant gradient of temperatures from very hot to very cold, Professor Vogt said. "It could be quite a hospitable place provided the atmosphere is not made of solid am ...
Document
... Explaining the Characteristics of the Solar System 1. The orbits of the planets lie in the same plane because the rotating solar nebula collapsed into a disk, and the planets formed in that disk. Objects are co-eval (4.) 2. The division into small inner and giant outer planets rests upon the amoun ...
... Explaining the Characteristics of the Solar System 1. The orbits of the planets lie in the same plane because the rotating solar nebula collapsed into a disk, and the planets formed in that disk. Objects are co-eval (4.) 2. The division into small inner and giant outer planets rests upon the amoun ...
pdf - Starchitect
... significant moon of the inner planets) formed in an entirely different fashion than the giant planet moons. One favored scenario is that a sister planet was forming at a Lagrange point, 60 degrees ahead or behind Earth in the same orbit. This planet destabilized and collided with Earth, creating a r ...
... significant moon of the inner planets) formed in an entirely different fashion than the giant planet moons. One favored scenario is that a sister planet was forming at a Lagrange point, 60 degrees ahead or behind Earth in the same orbit. This planet destabilized and collided with Earth, creating a r ...
Planetary Orbit Simulator – Pretest
... Question 8: At which point or points is the planet slowing down? (planets shown here are assumed to be orbiting counter-clockwise) a) A, E b) B,C,D c) D d) A, B, C, D, E e) none of the points (the planet is moving at constant speed) Question 9: The speed of a planet in orbit is a) constant. b) alway ...
... Question 8: At which point or points is the planet slowing down? (planets shown here are assumed to be orbiting counter-clockwise) a) A, E b) B,C,D c) D d) A, B, C, D, E e) none of the points (the planet is moving at constant speed) Question 9: The speed of a planet in orbit is a) constant. b) alway ...
8th Grade Earth Science Objectives
... calculations to see how “weight” is affected by a planet or moon’s increased or decreased gravity. Discussion of how gravity and inertia work together to keep the planets in orbit. Aligned Resources Core Lab 11: Walk the Solar System and Force of Gravity Chapter 19: Earth, Moon and Sun Chapter 20: S ...
... calculations to see how “weight” is affected by a planet or moon’s increased or decreased gravity. Discussion of how gravity and inertia work together to keep the planets in orbit. Aligned Resources Core Lab 11: Walk the Solar System and Force of Gravity Chapter 19: Earth, Moon and Sun Chapter 20: S ...
IOSR Journal of Applied Physics (IOSR-JAP)
... star gives them the rotational axis angle. But there are some other planets that have only one star. Their rotational angle is towards the star. It also means our earth is not moving around the sun not for only the sun’s gravity but also for another star’s gravity. ...
... star gives them the rotational axis angle. But there are some other planets that have only one star. Their rotational angle is towards the star. It also means our earth is not moving around the sun not for only the sun’s gravity but also for another star’s gravity. ...
Document
... A full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. Pluto has been demoted to be a “Dwarf planet” (2006) because it does not dominate its neig ...
... A full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. Pluto has been demoted to be a “Dwarf planet” (2006) because it does not dominate its neig ...
An Introduction To Parallax
... Student 1: I think that if we measured the parallax of a star from Mars, the angle would be larger than if we measured it from Earth because Mars has a much larger orbit. This would cause the star to move an angle comparable to that of its orbit. Student 2: If we measured the parallax from Mars, the ...
... Student 1: I think that if we measured the parallax of a star from Mars, the angle would be larger than if we measured it from Earth because Mars has a much larger orbit. This would cause the star to move an angle comparable to that of its orbit. Student 2: If we measured the parallax from Mars, the ...
8th Grade Science Midterm Review Put all answers on a separate
... 1. Describe the size of a meter, second, and kilogram.A meter is about the height of a door handle from the floor. A second is about the time for one heart beat. A kilogram is about the mass of a text book. 2. What are metric units for distance, time, speed, acceleration, and force?A unit what ideas ...
... 1. Describe the size of a meter, second, and kilogram.A meter is about the height of a door handle from the floor. A second is about the time for one heart beat. A kilogram is about the mass of a text book. 2. What are metric units for distance, time, speed, acceleration, and force?A unit what ideas ...
8th Grade Science Midterm Review Put all answers on a separate
... 1. Describe the size of a meter, second, and kilogram.A meter is about the height of a door handle from the floor. A second is about the time for one heart beat. A kilogram is about the mass of a text book. 2. What are metric units for distance, time, speed, acceleration, and force? A unit describes ...
... 1. Describe the size of a meter, second, and kilogram.A meter is about the height of a door handle from the floor. A second is about the time for one heart beat. A kilogram is about the mass of a text book. 2. What are metric units for distance, time, speed, acceleration, and force? A unit describes ...
HO-13 Naive and Goals 5a Astron
... is a reasonable route to follow if you want to go from Lansing to Grand Rapids. However, if you are starting from Traverse City, Interstate 96 isn’t likely to be part of your journey. Similarly, when planning a science unit, you need to know where your students are when you launch the unit. Dependin ...
... is a reasonable route to follow if you want to go from Lansing to Grand Rapids. However, if you are starting from Traverse City, Interstate 96 isn’t likely to be part of your journey. Similarly, when planning a science unit, you need to know where your students are when you launch the unit. Dependin ...
Earth in the Universe Answer each in your binder or notebook. Date
... A. A small group of stars is called a galaxy. B. Stars consist mainly of hydrogen and helium. C. Types of stars include red giants, super giants, and dwarf stars. D. Constellations of stars are found in different places in the sky. ...
... A. A small group of stars is called a galaxy. B. Stars consist mainly of hydrogen and helium. C. Types of stars include red giants, super giants, and dwarf stars. D. Constellations of stars are found in different places in the sky. ...
Direct Detection of Exoplanets
... Even if we can image an Earth-like planet in the habitable zone of some star, we will not be able to resolve its surface features in the foreseeable future. (No “zooming in” to see oceans, forests, city lights… Later we’ll see how you can detect some of these through reflected light.) Instead, we mu ...
... Even if we can image an Earth-like planet in the habitable zone of some star, we will not be able to resolve its surface features in the foreseeable future. (No “zooming in” to see oceans, forests, city lights… Later we’ll see how you can detect some of these through reflected light.) Instead, we mu ...
Theme 7.2 -- The Complete Solar System
... So, we've discovered planetary systems around many stars but we should be aware of very strong ‘selection effects’ -- that is to say certain biases that are going to influence the kinds of planets we can detect and constrain our ability to draw general conclusions. For example, planets that are big ...
... So, we've discovered planetary systems around many stars but we should be aware of very strong ‘selection effects’ -- that is to say certain biases that are going to influence the kinds of planets we can detect and constrain our ability to draw general conclusions. For example, planets that are big ...
Is Anyone Out There? Solving the Drake Equation
... Those variants best suited to survive, best able to reproduce, are more likely to pass on their genetic code to the next generation ...
... Those variants best suited to survive, best able to reproduce, are more likely to pass on their genetic code to the next generation ...
January
... Except for the probes that have been sent to the planets, astronomers cannot reach out and touch their experiment, which is the universe itself. One of the key measurements in Astronomy is distance. To measure distances, the astronomer must rely on the light from any object. Distances are then deter ...
... Except for the probes that have been sent to the planets, astronomers cannot reach out and touch their experiment, which is the universe itself. One of the key measurements in Astronomy is distance. To measure distances, the astronomer must rely on the light from any object. Distances are then deter ...
Classifying Stars (pages 753–754) Key Concept: Characteristics
... The points on the H-R diagram form a pattern. Most stars on the H-R diagram fall into a band that spreads from the top left corner of the diagram to the bottom right corner. This band is called the main sequence. Stars in the main sequence are called main-sequence stars. About 90 percent of all sta ...
... The points on the H-R diagram form a pattern. Most stars on the H-R diagram fall into a band that spreads from the top left corner of the diagram to the bottom right corner. This band is called the main sequence. Stars in the main sequence are called main-sequence stars. About 90 percent of all sta ...
For stars
... The Twelve constellations (some say thirteen) that the Sun moves through during the year are called the zodiac; The view of the night sky changes as Earth moves in its orbit about the Sun. As drawn here, the night side of Earth faces a different set of constellations at different times of the year. ...
... The Twelve constellations (some say thirteen) that the Sun moves through during the year are called the zodiac; The view of the night sky changes as Earth moves in its orbit about the Sun. As drawn here, the night side of Earth faces a different set of constellations at different times of the year. ...
Chapter 2
... iron that has recently fallen to Earth. Tell the story of how you got here, beginning from the time you were part of the gas in the solar nebula 4.6 billion years ago. Include as much detail as possible. Your story should be scientifically accurate but also creative and interesting. ...
... iron that has recently fallen to Earth. Tell the story of how you got here, beginning from the time you were part of the gas in the solar nebula 4.6 billion years ago. Include as much detail as possible. Your story should be scientifically accurate but also creative and interesting. ...
ppt
... – The Sun and the other bodies orbit around a common center of mass – The Sun is so massive that it is very close to the center of mass and moves very little – Orbits are elliptical, but very slightly so ...
... – The Sun and the other bodies orbit around a common center of mass – The Sun is so massive that it is very close to the center of mass and moves very little – Orbits are elliptical, but very slightly so ...
What`s a Parsec? - The Sky This Week
... define the parsec, let’s look at some more familiar units of astronomical distance: the light year (ly), and the astronomical unit (AU). A light year is the distance light travels in an average Gregorian year (365.2425 days) in the near-vacuum of space. The speed of light is very fast: 299,792,458 m ...
... define the parsec, let’s look at some more familiar units of astronomical distance: the light year (ly), and the astronomical unit (AU). A light year is the distance light travels in an average Gregorian year (365.2425 days) in the near-vacuum of space. The speed of light is very fast: 299,792,458 m ...
Gravity: Motivation • An initial theory describing the nature of the
... observing session. • Extra credit is available by attending an Astronomical Video and Public Telescope Observing session (up to 5% of final grade) and submitting a two page word processed paper describing the session’s video and celestial objects observed with the telescope(s) no later than one week ...
... observing session. • Extra credit is available by attending an Astronomical Video and Public Telescope Observing session (up to 5% of final grade) and submitting a two page word processed paper describing the session’s video and celestial objects observed with the telescope(s) no later than one week ...
eratoshenes_earth_measurement
... In the field of geodesy, however, Eratosthenes will always be remembered for his measurements of the Earth. A firm believer of a spherical Earth, he made a surprisingly accurate measurement of the circumference of the Earth. Details were given in his treatise On the measurement of the Earth which is ...
... In the field of geodesy, however, Eratosthenes will always be remembered for his measurements of the Earth. A firm believer of a spherical Earth, he made a surprisingly accurate measurement of the circumference of the Earth. Details were given in his treatise On the measurement of the Earth which is ...
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.