Exoplanet Working Group
... kinetic equations and numerical simulation, both. – The standard formation scenario is accretion by planetesimal accumulation (Safronov 1969) ...
... kinetic equations and numerical simulation, both. – The standard formation scenario is accretion by planetesimal accumulation (Safronov 1969) ...
Chapter 2 History
... Aristotelian theory of motion, and only managed to account for the observed planetary positions by a combination of deferents and epicycles centred on the stationary sun. It was the moving earth that annoyed his peers. Tycho Brahe, the great astronomer of the next generation clearly appreciated the ...
... Aristotelian theory of motion, and only managed to account for the observed planetary positions by a combination of deferents and epicycles centred on the stationary sun. It was the moving earth that annoyed his peers. Tycho Brahe, the great astronomer of the next generation clearly appreciated the ...
Lecture 6 Recall: Geocentric Model of Solar System
... – Could get rid of these by assuming Sun at center, with Earth and planets circling fairly uniformly (but Moon still needs to go around Earth). – The one-year epicycles are not “real”,only due to the motion, or “parallax”, of the viewer (us on Earth) – Retrograde apparent motion due to period of pla ...
... – Could get rid of these by assuming Sun at center, with Earth and planets circling fairly uniformly (but Moon still needs to go around Earth). – The one-year epicycles are not “real”,only due to the motion, or “parallax”, of the viewer (us on Earth) – Retrograde apparent motion due to period of pla ...
Solo - Net Start Class
... Sagan: Precisely! People have been counting stars before you or me, even if you were born in one ninety B.C. ...
... Sagan: Precisely! People have been counting stars before you or me, even if you were born in one ninety B.C. ...
The search for exoplanets
... On April 17th 2014 NASA’s Kepler-telescope discovered the first Earth-size planet Kepler186f in a habitable zone, which is also accompanied by four other planets. It orbits its star (a red dwarf) once every 130 days and receives one-third of the energy that the earth gets from the sun. Not much is k ...
... On April 17th 2014 NASA’s Kepler-telescope discovered the first Earth-size planet Kepler186f in a habitable zone, which is also accompanied by four other planets. It orbits its star (a red dwarf) once every 130 days and receives one-third of the energy that the earth gets from the sun. Not much is k ...
Outline of Lecture on Copernican Revolution: 5b: So, what was
... Details remained in both models. These result because the actual planetary orbits are elliptical and not circular. Ptolemy dealt with this using uniform motion about the equant point for an eccentric (displaced) deferent circle, and Copernicus dealt with it by introducing a small epicycle for each ...
... Details remained in both models. These result because the actual planetary orbits are elliptical and not circular. Ptolemy dealt with this using uniform motion about the equant point for an eccentric (displaced) deferent circle, and Copernicus dealt with it by introducing a small epicycle for each ...
Models of Our Solar System
... The Earth spins on its axis, which explains the motion of the planets. ...
... The Earth spins on its axis, which explains the motion of the planets. ...
The Origins of Modern Astronomy Astronomy goes back to well
... what uniform and orderly motions can the apparent motions of the planets be accounted for?" The idea that the motion of the planets could be explained by orderly motions was a radical idea for the time. Modern reconstructions of the Eudoxan model show 27 spheres rotating around Earth. The moon and s ...
... what uniform and orderly motions can the apparent motions of the planets be accounted for?" The idea that the motion of the planets could be explained by orderly motions was a radical idea for the time. Modern reconstructions of the Eudoxan model show 27 spheres rotating around Earth. The moon and s ...
The Greeks.ppt - WordPress.com
... of mainland Greece. There art was based on beauty and having fun! They are named after the mythical kind Minos who ruled Crete and owed a half –man, half-bull “pet” called the minotaur and he was also his step-son. His wife had a married a bull before him!! Minos kept him in a labyrinth and sacrific ...
... of mainland Greece. There art was based on beauty and having fun! They are named after the mythical kind Minos who ruled Crete and owed a half –man, half-bull “pet” called the minotaur and he was also his step-son. His wife had a married a bull before him!! Minos kept him in a labyrinth and sacrific ...
Name - MIT
... A) More distant planets orbit the Sun at slower speeds. B) The orbit of each planet about the Sun is an ellipse with the Sun at one focus. C) The force of attraction between any two objects decreases with the square of the distance between their centers. D) As a planet moves around its orbit, it swe ...
... A) More distant planets orbit the Sun at slower speeds. B) The orbit of each planet about the Sun is an ellipse with the Sun at one focus. C) The force of attraction between any two objects decreases with the square of the distance between their centers. D) As a planet moves around its orbit, it swe ...
PowerPoint
... There was a problem. The data was so good that it could not be fit with the heliocentric model if only circles were used. Then, he began to work with the ellipse. Sept 10, 2003 ...
... There was a problem. The data was so good that it could not be fit with the heliocentric model if only circles were used. Then, he began to work with the ellipse. Sept 10, 2003 ...
Greek Theatre
... Greek tragedy as we know it was created in Athens around the time of 532 BC, when Thespis was the earliest recorded actor. Being a winner of the first theatrical contest held at Athens, he was the exarchon, or leader, of the dithyrambs performed in and around Attica, especially at the rural Dionysia ...
... Greek tragedy as we know it was created in Athens around the time of 532 BC, when Thespis was the earliest recorded actor. Being a winner of the first theatrical contest held at Athens, he was the exarchon, or leader, of the dithyrambs performed in and around Attica, especially at the rural Dionysia ...
Greeks ppt
... The Archaic period was the earliest period in Greek Sculpture which started around 600 B.C. and lasted until 480 B.C. These works have a stiff and ridged appearance similar to that of the Egyptian sculpture. The second period, the Classical period, was between the Archaic and Hellenistic times. The ...
... The Archaic period was the earliest period in Greek Sculpture which started around 600 B.C. and lasted until 480 B.C. These works have a stiff and ridged appearance similar to that of the Egyptian sculpture. The second period, the Classical period, was between the Archaic and Hellenistic times. The ...
Greek Art and Architecture PPT
... The Archaic period was the earliest period in Greek Sculpture which started around 600 B.C. and lasted until 480 B.C. These works have a stiff and ridged appearance similar to that of the Egyptian sculpture. The second period, the Classical period, was between the Archaic and Hellenistic times. The ...
... The Archaic period was the earliest period in Greek Sculpture which started around 600 B.C. and lasted until 480 B.C. These works have a stiff and ridged appearance similar to that of the Egyptian sculpture. The second period, the Classical period, was between the Archaic and Hellenistic times. The ...
Supplemental Resources - Morehead Planetarium and Science
... 7c. Identify at least one red star, one blue star, and one yellow star (other than the Sun). Explain the meaning of these colors. Look up into the sky and you’ll see the stars twinkling in different colors. Some are dull and red, while others are white and others look bright blue. So how do you get ...
... 7c. Identify at least one red star, one blue star, and one yellow star (other than the Sun). Explain the meaning of these colors. Look up into the sky and you’ll see the stars twinkling in different colors. Some are dull and red, while others are white and others look bright blue. So how do you get ...
Lecture 4 - Orbits of the planets
... Earth-Centered Model • Venus is never seen very far from the Sun. • In Ptolemy’s model, Venus and the Sun must move together with the epicycle of Venus centered on a line between the Earth and the Sun • Then, Venus can never be the opposite side of the Sun from the Earth, so it can never have gibbo ...
... Earth-Centered Model • Venus is never seen very far from the Sun. • In Ptolemy’s model, Venus and the Sun must move together with the epicycle of Venus centered on a line between the Earth and the Sun • Then, Venus can never be the opposite side of the Sun from the Earth, so it can never have gibbo ...
Looking Back in Time Space Flight to the Stars
... the stars. The next nearest star to Earth after the Sun is actually part of a group of three stars that orbit each other. This group is called the Centauri system (Figure 7.8). It lies about 4.3 ly away from the solar system. If it were possible for you to have a cellphone conversation with someone ...
... the stars. The next nearest star to Earth after the Sun is actually part of a group of three stars that orbit each other. This group is called the Centauri system (Figure 7.8). It lies about 4.3 ly away from the solar system. If it were possible for you to have a cellphone conversation with someone ...
Lecture 1
... http://archaeoastronomy.wordpress.com/2005/06/15/stonehenge-astronomy-ii-solar-alignments/ ...
... http://archaeoastronomy.wordpress.com/2005/06/15/stonehenge-astronomy-ii-solar-alignments/ ...
Home and Family (5)
... 50) The __________ stood at the front door and protected the house A. thronos B. herm C. lanax D. none of the above The following questions are tie-breakers. You should complete these questions on the reverse side of your scantron as 96-100, but they will only be graded in the event of a tie. 96) D ...
... 50) The __________ stood at the front door and protected the house A. thronos B. herm C. lanax D. none of the above The following questions are tie-breakers. You should complete these questions on the reverse side of your scantron as 96-100, but they will only be graded in the event of a tie. 96) D ...
PHYSICS 110: PHYSICS OF EVERYDAY PHENOMENA
... Course Goals: “What do we know? How do we know? What are the present research fields?” These three astronomy questions form the basis of our gradually more intensive study of the universe. In WHAT we examine what we can see in the sky first without optical aids and consider the atmospherically, geog ...
... Course Goals: “What do we know? How do we know? What are the present research fields?” These three astronomy questions form the basis of our gradually more intensive study of the universe. In WHAT we examine what we can see in the sky first without optical aids and consider the atmospherically, geog ...
Subject: Earth Science Grade: 11 Unit #: 1 Title: Astronomy
... rocky, and dense. The Jovian planets are large, gaseous, and of ...
... rocky, and dense. The Jovian planets are large, gaseous, and of ...
HW1-6
... RQ 4: Why did Copernicus have to keep small epicycles in his model? Copernicus was still committed to uniform circular motion. The real motion of planets are elliptical, but he used a combination of a circle on a circle to try to create an ellipse. RQ 5: When Tycho observed the new star of 1572, he ...
... RQ 4: Why did Copernicus have to keep small epicycles in his model? Copernicus was still committed to uniform circular motion. The real motion of planets are elliptical, but he used a combination of a circle on a circle to try to create an ellipse. RQ 5: When Tycho observed the new star of 1572, he ...
Ancient Greek astronomy
Greek astronomy is astronomy written in the Greek language in classical antiquity. Greek astronomy is understood to include the ancient Greek, Hellenistic, Greco-Roman, and Late Antiquity eras. It is not limited geographically to Greece or to ethnic Greeks, as the Greek language had become the language of scholarship throughout the Hellenistic world following the conquests of Alexander. This phase of Greek astronomy is also known as Hellenistic astronomy, while the pre-Hellenistic phase is known as Classical Greek astronomy. During the Hellenistic and Roman periods, much of the Greek and non-Greek astronomers working in the Greek tradition studied at the Musaeum and the Library of Alexandria in Ptolemaic Egypt.The development of astronomy by the Greek and Hellenistic astronomers is considered by historians to be a major phase in the history of astronomy. Greek astronomy is characterized from the start by seeking a rational, physical explanation for celestial phenomena. Most of the constellations of the northern hemisphere derive from Greek astronomy, as are the names of many stars, asteroids, and planets. It was influenced by Egyptian and especially Babylonian astronomy; in turn, it influenced Indian, Arabic-Islamic and Western European astronomy.