
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 ...
We Are Stardust: Synthesis of the Elements Essential for Life Aparna
... bombs, which dramatically increased our capacity to end life. Connections to Cosmology: • The attempt to understand the energy source of stars reveals important clues about the creation of the universe. First, we have seen that the Sun’s central temperature is about 15 million degrees, at which temp ...
... bombs, which dramatically increased our capacity to end life. Connections to Cosmology: • The attempt to understand the energy source of stars reveals important clues about the creation of the universe. First, we have seen that the Sun’s central temperature is about 15 million degrees, at which temp ...
Astronomy and Space Science
... • Motion planets around epicycle centers and epicycle centers around the Earth are uniform circular motions. • Note: the centers of epicycles for Mercury and Venus always align with the Sun, which explains their maximum elongations (29° and 48°). • Ptolemy (90-168 CE) modified this model to be quant ...
... • Motion planets around epicycle centers and epicycle centers around the Earth are uniform circular motions. • Note: the centers of epicycles for Mercury and Venus always align with the Sun, which explains their maximum elongations (29° and 48°). • Ptolemy (90-168 CE) modified this model to be quant ...
No. 35 - Institute for Astronomy
... We now are entering a rich and special time for such studies. The current exoplanet census now exceeds 400 objects, most of them with masses comparable to the gas-giant planet Jupiter, which has a mass of one-thousandth that of the Sun, or 300 times that of Earth. Most exoplanets have been identifie ...
... We now are entering a rich and special time for such studies. The current exoplanet census now exceeds 400 objects, most of them with masses comparable to the gas-giant planet Jupiter, which has a mass of one-thousandth that of the Sun, or 300 times that of Earth. Most exoplanets have been identifie ...
What is a scientific model?
... the velocities of falling bodies are not proportional to their weights; showing that the path of a projectile is a parabola; building the first astronomical telescope; coming up with the ideas behind Newton's laws of motion; and confirming the Copernican theory of the solar system. He was denounced ...
... the velocities of falling bodies are not proportional to their weights; showing that the path of a projectile is a parabola; building the first astronomical telescope; coming up with the ideas behind Newton's laws of motion; and confirming the Copernican theory of the solar system. He was denounced ...
Refuges for Life in a - University of Arizona
... is that the correlation of metallicity and detected planets is not the same as causation. Perhaps the causation goes in the opposite direction: instead of high stellar metallicity explaining the presence of giant planets, the presence of giant planets might explain the high stellar metallicity. This ...
... is that the correlation of metallicity and detected planets is not the same as causation. Perhaps the causation goes in the opposite direction: instead of high stellar metallicity explaining the presence of giant planets, the presence of giant planets might explain the high stellar metallicity. This ...
Earth - Mrs. Christov`s Physical Geography Class
... Planets- celestial bodies that revolve around a star and reflect the star’s light rather than producing their own. They rotate or spin on their own axes, and revolve around the Sun. ...
... Planets- celestial bodies that revolve around a star and reflect the star’s light rather than producing their own. They rotate or spin on their own axes, and revolve around the Sun. ...
Lecture #4 - History of Astronomy - Ptolemy to Kepler
... planets, that weakens with increasing distance – Invested Sun with physical properties necessary for the uniform description of planetary motions ...
... planets, that weakens with increasing distance – Invested Sun with physical properties necessary for the uniform description of planetary motions ...
The Planets
... all orbit the sun. The nine planets that orbit the sun are (in order from the sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto (a dwarf planet). A belt of asteroids (minor planets made of rock and metal) lies between Mars and Jupiter. These objects all orbit the sun in ...
... all orbit the sun. The nine planets that orbit the sun are (in order from the sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto (a dwarf planet). A belt of asteroids (minor planets made of rock and metal) lies between Mars and Jupiter. These objects all orbit the sun in ...
Secrets of the Sun
... Seasonal patterns of sunrise and sunset can be observed, described, and predicted. (By end of grade 2). The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day a ...
... Seasonal patterns of sunrise and sunset can be observed, described, and predicted. (By end of grade 2). The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day a ...
Document
... C) The addition of gasses like Carbon Dioxide into the atmosphere D) The degradation of Earth’s magnetic field 12) If you were to double the mass of Jupiter, what would happen? A) Its radius would substantially increase B) Since it is made up of the same material as the Sun, it would begin nuclear f ...
... C) The addition of gasses like Carbon Dioxide into the atmosphere D) The degradation of Earth’s magnetic field 12) If you were to double the mass of Jupiter, what would happen? A) Its radius would substantially increase B) Since it is made up of the same material as the Sun, it would begin nuclear f ...
Sample pages 1 PDF
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
Oct5
... * All the carbon, oxygen, etc on the Earth, (and in humans) was produced in the centers of stars. * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant wi ...
... * All the carbon, oxygen, etc on the Earth, (and in humans) was produced in the centers of stars. * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant wi ...
arXiv:0905.3008v1 [astro-ph.EP] 19 May 2009
... The time dependent term (dAU/dt)(t − t0 ) in Eq. (2) currently cannot be related with any theoretical predictions, hence several attempts have been made to explain this secular increase of AU, including e.g., the effects of the cosmic expansion (Krasinsky and Brumberg 2004, Mashhoon et al. 2007, Ara ...
... The time dependent term (dAU/dt)(t − t0 ) in Eq. (2) currently cannot be related with any theoretical predictions, hence several attempts have been made to explain this secular increase of AU, including e.g., the effects of the cosmic expansion (Krasinsky and Brumberg 2004, Mashhoon et al. 2007, Ara ...
2012年雅思阅读考试考前冲刺试题(1)
... 11.答案:orbiting (第12段第1句:Since the discovery in 1995 of the first "exoplanet" - a planet orbiting a star other than the Sun - more than 200 others have been found by ground-based observatories.) 12.答案:harbour life (第13段:Until now the usual method of finding exoplanets has been to detect the "wobble" ...
... 11.答案:orbiting (第12段第1句:Since the discovery in 1995 of the first "exoplanet" - a planet orbiting a star other than the Sun - more than 200 others have been found by ground-based observatories.) 12.答案:harbour life (第13段:Until now the usual method of finding exoplanets has been to detect the "wobble" ...
chapter01 - California State University, Long Beach
... 7. This problem is a modern version of the method Eratosthenes used to measure the size of the Earth. Given that the shadow length is 15 degrees, the distance in latitude between the two points on the asteroid must be 15 degrees, or 15/360 = 1/24 th the circumference of the asteroid. If the 15 degre ...
... 7. This problem is a modern version of the method Eratosthenes used to measure the size of the Earth. Given that the shadow length is 15 degrees, the distance in latitude between the two points on the asteroid must be 15 degrees, or 15/360 = 1/24 th the circumference of the asteroid. If the 15 degre ...
Venus Transit Info on Measuring Distances
... Measuring the Distance to the Sun Based on the article at http://brightstartutors.com/blog/2012/04/26/the-transit-of-venus/, where additional details and the math may be found. On June 5, 2012, people from many countries will be able to see a rare transit of Venus. This just means that Venus will be ...
... Measuring the Distance to the Sun Based on the article at http://brightstartutors.com/blog/2012/04/26/the-transit-of-venus/, where additional details and the math may be found. On June 5, 2012, people from many countries will be able to see a rare transit of Venus. This just means that Venus will be ...
Unit 5: Space Exploration Topic 1: Our Eyes Only • Define FRAME
... • The structural and mechanical elements: everything from the rocket itself to engines, storage tanks and fins • The fuel • The payload • What is the difference between an artificial satellite and a natural satellite? What is an example of each? What can artificial satellites be used for? A artifici ...
... • The structural and mechanical elements: everything from the rocket itself to engines, storage tanks and fins • The fuel • The payload • What is the difference between an artificial satellite and a natural satellite? What is an example of each? What can artificial satellites be used for? A artifici ...
Sirius Star1 - Emmi
... Canis major represented either a two-headed dog, a dog that was a gift from Zeus to Europa, or Orion’s hunting dog, helping him to fight Taurus. ...
... Canis major represented either a two-headed dog, a dog that was a gift from Zeus to Europa, or Orion’s hunting dog, helping him to fight Taurus. ...
Hurray! Holidays are here again. Name: Class: II / Sec _____
... Read the given paragraph carefully and answer the questions that follow- ...
... Read the given paragraph carefully and answer the questions that follow- ...
The Sun
... A Regions on the Sun, hotter than the photosphere. B Regions on the Sun, composed of dark substances. C Regions on the Sun, colder than the photosphere. D Holes in the surface of the Sun where we see deep into the Sun. E Clouds floating over the photosphere. ...
... A Regions on the Sun, hotter than the photosphere. B Regions on the Sun, composed of dark substances. C Regions on the Sun, colder than the photosphere. D Holes in the surface of the Sun where we see deep into the Sun. E Clouds floating over the photosphere. ...
Grand Tour Worksheet - School District of La Crosse
... 12. Are solid surfaces common throughout the universe? 13. Why didn’t Jupiter look too complicated from earth? ...
... 12. Are solid surfaces common throughout the universe? 13. Why didn’t Jupiter look too complicated from earth? ...
Two new transiting extra-solar planets discovered with SuperWASP
... More than 200 planets are known today to orbit stars other than the Sun. Among these exoplanets, the search for and study of planets which transit their host stars lies at the forefront of exoplanetology. They associate two complementary detection methods. The first involves the drop in a star’s lum ...
... More than 200 planets are known today to orbit stars other than the Sun. Among these exoplanets, the search for and study of planets which transit their host stars lies at the forefront of exoplanetology. They associate two complementary detection methods. The first involves the drop in a star’s lum ...
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.