Lecture 6 Recall: Geocentric Model of Solar System
... planets to little uniformly rotating spheres (epicycles) whose centers are attached to object's main sphere. Spheres do not overlap. Except for having Moon closer than Sun (to get solar eclipses), the size of each sphere is arbitrary. Can be made as exact as you like by adding epicycles to epicycles ...
... planets to little uniformly rotating spheres (epicycles) whose centers are attached to object's main sphere. Spheres do not overlap. Except for having Moon closer than Sun (to get solar eclipses), the size of each sphere is arbitrary. Can be made as exact as you like by adding epicycles to epicycles ...
Working with the Illinois Learning Standards: A Constructivist
... • Construct the Hertzsprung-Russell diagram and infer size. • work out inverse-square law for light using paraffin photometer. 12.F.5a Compare the processes involved in the life cycle of stars (e.g., gravitational collapse, thermonuclear fusion, nova) and evaluate the supporting evidence. PRECONCEPT ...
... • Construct the Hertzsprung-Russell diagram and infer size. • work out inverse-square law for light using paraffin photometer. 12.F.5a Compare the processes involved in the life cycle of stars (e.g., gravitational collapse, thermonuclear fusion, nova) and evaluate the supporting evidence. PRECONCEPT ...
Other Bodies in the Solar System
... Johann Daniel Titius vonWittenburg • In 1801 Giuseppe Piazzi discovered the planet “Ceres” • William Herschel categorized Ceres and the other dwarf planets as asteroids , “star like” http://upload.wikimedia. org/wikipedia/commons/ 9/92/Giuseppe_Piazzi.jpg ...
... Johann Daniel Titius vonWittenburg • In 1801 Giuseppe Piazzi discovered the planet “Ceres” • William Herschel categorized Ceres and the other dwarf planets as asteroids , “star like” http://upload.wikimedia. org/wikipedia/commons/ 9/92/Giuseppe_Piazzi.jpg ...
time astro 2014 - Fort Thomas Independent Schools
... day was 6 hours and 620 my ago it was 21.9 hours) Note: the Earth is slowing down by roughly 1.7 milliseconds per century. ...
... day was 6 hours and 620 my ago it was 21.9 hours) Note: the Earth is slowing down by roughly 1.7 milliseconds per century. ...
New Worlds - Universiteit Leiden
... The discovery of the planet around 51 Pegasi resulted in a flood of new exoplanet detections. Now, a decade later, some 300 exoplanets have been discovered and it is one of the fastest growing branches of astronomy. One of these 300 exoplanets has just been discovered by a group of Leiden’s bachelor ...
... The discovery of the planet around 51 Pegasi resulted in a flood of new exoplanet detections. Now, a decade later, some 300 exoplanets have been discovered and it is one of the fastest growing branches of astronomy. One of these 300 exoplanets has just been discovered by a group of Leiden’s bachelor ...
Planetary Taxonomy
... Quantifying roundness Roundness is almost never directly observable and is therefore inherently problematic as a basis for classification. Can we use size or mass as a proxy to establish roundness? The critical diameter D above which a self-gravitating body of density ρ overcomes material strength ...
... Quantifying roundness Roundness is almost never directly observable and is therefore inherently problematic as a basis for classification. Can we use size or mass as a proxy to establish roundness? The critical diameter D above which a self-gravitating body of density ρ overcomes material strength ...
Apparent size (apparent diameter)
... 1. The changing angle of insolation completes one full cycle per year. a. Intensity of insolation (maximum at solar noon): i. Solar noon insolation in the northern hemisphere increases from December 21st through June 21st. This is opposite in the southern hemisphere. ii. Solar noon insolation in the ...
... 1. The changing angle of insolation completes one full cycle per year. a. Intensity of insolation (maximum at solar noon): i. Solar noon insolation in the northern hemisphere increases from December 21st through June 21st. This is opposite in the southern hemisphere. ii. Solar noon insolation in the ...
Astrophysics 2012_2013 Grade 10 April 29, 2013
... 3. Which two planets have retrograde rotation (backwards/clockwise)? 4. Which two planets do not have any moons? 5. Which massive planet is a "brown dwarf" or "failed star?" 6. What are the names of the two classic belts in our Solar System? 7. Which icy region of our Solar System surrounds it like ...
... 3. Which two planets have retrograde rotation (backwards/clockwise)? 4. Which two planets do not have any moons? 5. Which massive planet is a "brown dwarf" or "failed star?" 6. What are the names of the two classic belts in our Solar System? 7. Which icy region of our Solar System surrounds it like ...
Properties of the Asteroids
... dust and gas that gathered around the newly-formed Sun 5 billion years ago. Most of the material in the original cloud will have fallen to the centre, collapsing under its own gravity, where the gravitational energy released will have heated up the core until it reached sufficient temperature for nu ...
... dust and gas that gathered around the newly-formed Sun 5 billion years ago. Most of the material in the original cloud will have fallen to the centre, collapsing under its own gravity, where the gravitational energy released will have heated up the core until it reached sufficient temperature for nu ...
PT`s IAS Academy
... than the photosphere. The center of a spot, the umbra, looks dark gray if heavily filtered and is only 4500 K (as compared to the photosphere at 6000K). Around it is the penumbra, which looks lighter gray (if filtered). Sunspots come in cycles, increasing s ...
... than the photosphere. The center of a spot, the umbra, looks dark gray if heavily filtered and is only 4500 K (as compared to the photosphere at 6000K). Around it is the penumbra, which looks lighter gray (if filtered). Sunspots come in cycles, increasing s ...
Chapter 16 The Sun
... 16.7 Observations of Solar Neutrinos Neutrinos are emitted directly from the core of the Sun and escape, interacting with virtually nothing. Being able to observe these neutrinos would give us a direct picture of what is happening in the core. Unfortunately, they are no more likely to interact with ...
... 16.7 Observations of Solar Neutrinos Neutrinos are emitted directly from the core of the Sun and escape, interacting with virtually nothing. Being able to observe these neutrinos would give us a direct picture of what is happening in the core. Unfortunately, they are no more likely to interact with ...
here
... – Small Solar System Bodies: All other objects orbiting the Sun. http://www.space.com/scienceastronomy/060824_planet_definition.html ...
... – Small Solar System Bodies: All other objects orbiting the Sun. http://www.space.com/scienceastronomy/060824_planet_definition.html ...
Slide 1
... Nothing left (that we know of) from before the Big Bang…so don’t ask what happened before…no one knows! The idea begins with Hubble’s Discovery, 1939 – the Universe is moving away…expanding in all directions taking galaxies with it = Hubble’s Law Thus, in reverse thought, the Universe must have be ...
... Nothing left (that we know of) from before the Big Bang…so don’t ask what happened before…no one knows! The idea begins with Hubble’s Discovery, 1939 – the Universe is moving away…expanding in all directions taking galaxies with it = Hubble’s Law Thus, in reverse thought, the Universe must have be ...
the moons of jovian planets.
... Question 8 The asteroid belt is evidence of a) a planet that once orbited the Sun but later was destroyed. b) ancient material from the formation of the solar system. c) a collision between Jupiter and one of its larger moons. d) comets that were trapped by Jupiter’s gravitational field. Explanatio ...
... Question 8 The asteroid belt is evidence of a) a planet that once orbited the Sun but later was destroyed. b) ancient material from the formation of the solar system. c) a collision between Jupiter and one of its larger moons. d) comets that were trapped by Jupiter’s gravitational field. Explanatio ...
Study Island Test and Guide Gravity
... 1. The gravitational force of the Sun pulls inward on the planets, forcing them to stay in orbit around the Sun. If not for the gravitational force of the Sun on the planets, they would quickly move away from it. 2. The size of a planet's gravitational force is determined by the mass of the planet a ...
... 1. The gravitational force of the Sun pulls inward on the planets, forcing them to stay in orbit around the Sun. If not for the gravitational force of the Sun on the planets, they would quickly move away from it. 2. The size of a planet's gravitational force is determined by the mass of the planet a ...
Inquiry Activity - Ball State University
... away, is the effect of something known as parallax. One good way for students to grasp the concept of parallax is to have them hold their index finger out in front of their nose. Tell them to open only one eye and look at their finger, and then have them close that eye and open the other. There fing ...
... away, is the effect of something known as parallax. One good way for students to grasp the concept of parallax is to have them hold their index finger out in front of their nose. Tell them to open only one eye and look at their finger, and then have them close that eye and open the other. There fing ...
The barycentric motion of exoplanet host stars
... Of these, 30 systems have two known planets, while 11 systems have three or more. This sample of Doppler-detected multiple systems is complemented by the two multiple systems discovered from photometric transits, CoRoT–7 and HAT–P–13. To determine the host star barycentric motions, we have used the ...
... Of these, 30 systems have two known planets, while 11 systems have three or more. This sample of Doppler-detected multiple systems is complemented by the two multiple systems discovered from photometric transits, CoRoT–7 and HAT–P–13. To determine the host star barycentric motions, we have used the ...
Ancient Astronomy
... semi-major axes of their orbits. • Galileo used a telescope to observe the Moon and planets. The observed phases of Venus validated the heliocentric model proposed by Copernicus. Also discovered 4 moons orbiting Jupiter, Saturn’s rings, named lunar surface features, studied sunspots, noted visible d ...
... semi-major axes of their orbits. • Galileo used a telescope to observe the Moon and planets. The observed phases of Venus validated the heliocentric model proposed by Copernicus. Also discovered 4 moons orbiting Jupiter, Saturn’s rings, named lunar surface features, studied sunspots, noted visible d ...
Practice test - astronomy
... Day and night are caused by . . . a. the Earth orbiting around the Sun b. the Sun orbiting the Earth c. the tilt of the Earth on its axis d. the Earth ...
... Day and night are caused by . . . a. the Earth orbiting around the Sun b. the Sun orbiting the Earth c. the tilt of the Earth on its axis d. the Earth ...
Yeatman-Liddell College Preparatory Middle School Winter
... Our local star is the Sun. It appears to be rather small as stars go. Stars are fueled by hydrogen, and they exist until the last of their hydrogen fuel is used up. Our Sun will not run out of hydrogen for 5 billion years. Then our Sun will swell up and become a red giant. The core will continue to ...
... Our local star is the Sun. It appears to be rather small as stars go. Stars are fueled by hydrogen, and they exist until the last of their hydrogen fuel is used up. Our Sun will not run out of hydrogen for 5 billion years. Then our Sun will swell up and become a red giant. The core will continue to ...
Slide 1 - Mr. Hill`s Science Website
... On this scale, the Milky Way Galaxy would be the size of North America. ...
... On this scale, the Milky Way Galaxy would be the size of North America. ...
Radio Detection of Extrasolar Planets:
... Extrasolar Planets Why would we care? n Presence and strength of magnetic field Composition n ...
... Extrasolar Planets Why would we care? n Presence and strength of magnetic field Composition n ...
Slide 1
... information is written at all levels of understanding. I recommend to read them all, a lot. Our universe is a very complicated and very huge place. We are a very, very, very small part in the grand scope of things. You need to have a very solid understanding of the major principles of our universe t ...
... information is written at all levels of understanding. I recommend to read them all, a lot. Our universe is a very complicated and very huge place. We are a very, very, very small part in the grand scope of things. You need to have a very solid understanding of the major principles of our universe t ...
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.