Origin of the Earth and of the Solar System
... A Supernova is a gigantic explosion of a massive star after gravitational collapse (if no more energy can be gained by nuclear fusion). At maximum a Supernova can be brighter than a whole galaxy. The outer layers are expelled, while the center collapses to a Neutron Star or even to a Black Hole. All ...
... A Supernova is a gigantic explosion of a massive star after gravitational collapse (if no more energy can be gained by nuclear fusion). At maximum a Supernova can be brighter than a whole galaxy. The outer layers are expelled, while the center collapses to a Neutron Star or even to a Black Hole. All ...
The Solar System
... Venus is sometimes called Earth’s twin because its size and mass are similar to Earth’s. In 1962, Mariner 2 flew past Venus and sent back information about Venus’s atmosphere and rotation. The former Soviet Union landed the first probe on the surface of Venus in 1970. Venera 7, however, stopped work ...
... Venus is sometimes called Earth’s twin because its size and mass are similar to Earth’s. In 1962, Mariner 2 flew past Venus and sent back information about Venus’s atmosphere and rotation. The former Soviet Union landed the first probe on the surface of Venus in 1970. Venera 7, however, stopped work ...
The Solar System
... Venus is sometimes called Earth’s twin because its size and mass are similar to Earth’s. In 1962, Mariner 2 flew past Venus and sent back information about Venus’s atmosphere and rotation. The former Soviet Union landed the first probe on the surface of Venus in 1970. Venera 7, however, stopped work ...
... Venus is sometimes called Earth’s twin because its size and mass are similar to Earth’s. In 1962, Mariner 2 flew past Venus and sent back information about Venus’s atmosphere and rotation. The former Soviet Union landed the first probe on the surface of Venus in 1970. Venera 7, however, stopped work ...
Lecture03
... ellipse whose eccentricity is e = 0.017 (Appendix 1). • Because its orbit is and ellipse rather than a perfect circle, the Earth is slightly farther from the Sun in July than it is in January (Fig. 2-22). But this relatively small distance variation is not responsible for Earth’s seasons. ...
... ellipse whose eccentricity is e = 0.017 (Appendix 1). • Because its orbit is and ellipse rather than a perfect circle, the Earth is slightly farther from the Sun in July than it is in January (Fig. 2-22). But this relatively small distance variation is not responsible for Earth’s seasons. ...
This graph is typical of a - Indiana University Astronomy
... What is the speed of dark? A. The speed of light B. Darkness does not move, it is always present, and light is layed on top of it. C. A man stands at the doorway of his bedroom, attired in boxer shorts and a sleeveless undershirt. One hundred times in a row, he turns off the light switch and dashes ...
... What is the speed of dark? A. The speed of light B. Darkness does not move, it is always present, and light is layed on top of it. C. A man stands at the doorway of his bedroom, attired in boxer shorts and a sleeveless undershirt. One hundred times in a row, he turns off the light switch and dashes ...
Why do we weigh more on Earth than on the moon?
... moon than it does on Earth. The reason for this has to do with gravity. Gravity is the force of attraction that exists between all objects in the universe, including Earth and the moon. It’s what makes all things that go up come down. And it’s the reason we stay on Earth’s surface instead of floatin ...
... moon than it does on Earth. The reason for this has to do with gravity. Gravity is the force of attraction that exists between all objects in the universe, including Earth and the moon. It’s what makes all things that go up come down. And it’s the reason we stay on Earth’s surface instead of floatin ...
A Question of Planets - Vanderbilt University
... and had an extremely good time before giving the bike away and heading home. When he returned, Weintraub landed a job teaching astronomy at Santa Monica Community College and discovered that he enjoyed teaching. However, he also decided that he only wanted to do this kind of teaching if he combined ...
... and had an extremely good time before giving the bike away and heading home. When he returned, Weintraub landed a job teaching astronomy at Santa Monica Community College and discovered that he enjoyed teaching. However, he also decided that he only wanted to do this kind of teaching if he combined ...
October 2011
... dome and waited for it to get dark. It wasn’t long before the shutter was opened and we saw stars above the dome. What a wonderful sight. By about 7:30 we were observing. First we looked at Vega and then Epsilon Lyrae (the Double, Double) just to get an idea of what the seeing was like. On a scale o ...
... dome and waited for it to get dark. It wasn’t long before the shutter was opened and we saw stars above the dome. What a wonderful sight. By about 7:30 we were observing. First we looked at Vega and then Epsilon Lyrae (the Double, Double) just to get an idea of what the seeing was like. On a scale o ...
Primordial Planet Formation - University of California San Diego
... the Einstein General Theory of Relativity, whereby the gravitational field of a planet mass body comes perfectly into the line of sight to the distant quasar, and the gravitational field deflects the quasar brightness to a different direction, producing a brightness fading to some other observers ...
... the Einstein General Theory of Relativity, whereby the gravitational field of a planet mass body comes perfectly into the line of sight to the distant quasar, and the gravitational field deflects the quasar brightness to a different direction, producing a brightness fading to some other observers ...
Kepler`s laws - FSU High Energy Physics
... Ellipse = locus of points for which the sum of the distances from two fixed points (the focal points, or “foci”) is constant, = 2a, where a = semimajor axis of the ellipse distance in 3rd law is really semimajor axis a circle is a special case of an ellipse, where the semimajor and semimajor axes ar ...
... Ellipse = locus of points for which the sum of the distances from two fixed points (the focal points, or “foci”) is constant, = 2a, where a = semimajor axis of the ellipse distance in 3rd law is really semimajor axis a circle is a special case of an ellipse, where the semimajor and semimajor axes ar ...
Cosmochemistry from Nanometers to Light- Years A Written by
... Cosmochemistry has always been an interdisciplinary field, and cosmochemists have always paid attention to discoveries by astronomers and imaginative theories conjured up by astrophysicists. Nevertheless, cosmochemistry and astronomy never meshed seamlessly. That seems to be changing as observations ...
... Cosmochemistry has always been an interdisciplinary field, and cosmochemists have always paid attention to discoveries by astronomers and imaginative theories conjured up by astrophysicists. Nevertheless, cosmochemistry and astronomy never meshed seamlessly. That seems to be changing as observations ...
Celestial Bodies INSTRUCTIONS - The Challenger Learning Center
... f. The gray dust tail is pointed back along the path of the comet. The tip of the tail has been pushed away by solar radiation pressure. 80. Scroll down (zoom out) until you can see the orbit line for the comet. Students should note under MOVEMENT of Comets that Comets REVOLVE around the Sun in long ...
... f. The gray dust tail is pointed back along the path of the comet. The tip of the tail has been pushed away by solar radiation pressure. 80. Scroll down (zoom out) until you can see the orbit line for the comet. Students should note under MOVEMENT of Comets that Comets REVOLVE around the Sun in long ...
Celestial Motions - Georgia State University
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the ...
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the ...
Lecture 3a
... • Early work was on motion, and practical elements like hydrostatics • In 1609 was the first one to use a telescope for astronomy => became the most famous scientist/celebrity in Europe • Last 30 years of his life was often in trouble with the Catholic Church. His celebrity helped to save him. 16 ...
... • Early work was on motion, and practical elements like hydrostatics • In 1609 was the first one to use a telescope for astronomy => became the most famous scientist/celebrity in Europe • Last 30 years of his life was often in trouble with the Catholic Church. His celebrity helped to save him. 16 ...
Voyage: A Journey through our Solar System Grades 5
... Uranus’s rotation axis, however, is almost lying within its orbital plane. The cause of this unique feature is not certain, but it has been suggested that it was caused by an impact of a large object, such as a large asteroid or moon. Giant impacts like this were common during the early history of t ...
... Uranus’s rotation axis, however, is almost lying within its orbital plane. The cause of this unique feature is not certain, but it has been suggested that it was caused by an impact of a large object, such as a large asteroid or moon. Giant impacts like this were common during the early history of t ...
Physivd Preliminary Module 8.5 The Cosmic Engine
... a) describe qualitatively relative sizes, distances and movements of components of our solar system State the order of the planets in our solar system Explain the difference between dust, micrometeors, meteors, asteroids, comets, planetismals and planets in terms of size and composition. Disti ...
... a) describe qualitatively relative sizes, distances and movements of components of our solar system State the order of the planets in our solar system Explain the difference between dust, micrometeors, meteors, asteroids, comets, planetismals and planets in terms of size and composition. Disti ...
Designing Curriculum and Instruction in Elementary School
... witness it. Our own evolution is tied closely to the evolution of the Solar System. Thus, without understanding from where the Solar System came from, it is difficult to comprehend how mankind came to be. Scientists believe that the Solar System evolved from a giant cloud of dust and gas. They belie ...
... witness it. Our own evolution is tied closely to the evolution of the Solar System. Thus, without understanding from where the Solar System came from, it is difficult to comprehend how mankind came to be. Scientists believe that the Solar System evolved from a giant cloud of dust and gas. They belie ...
Astronomer Notes PowerPoint
... a string, a pencil, and two thumbtacks. The wider the separation of the foci, the more elongated, or eccentric, is the ellipse. In the special case where the two foci are at the same place, the curve drawn is a circle. ...
... a string, a pencil, and two thumbtacks. The wider the separation of the foci, the more elongated, or eccentric, is the ellipse. In the special case where the two foci are at the same place, the curve drawn is a circle. ...
Million years - The Origin Of Life
... divided by the total locking time [years]. Scientist Michael Koohafkan says that we can use these formulas to arrive at the maximum age of the planets and satellites: “Rate of change of rotational speed can be calculated. If it can be represented as a function, then approximate length of time until ...
... divided by the total locking time [years]. Scientist Michael Koohafkan says that we can use these formulas to arrive at the maximum age of the planets and satellites: “Rate of change of rotational speed can be calculated. If it can be represented as a function, then approximate length of time until ...
Definition of planet
The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.