ASTR 1020 – Spring 2017 – Prof. Magnani Answer Key – Homework 5
... The way to get heat out of an interstellar cloud is for the particles that make up to cloud to collide with each other. In a collision between two particles (atoms or molecules or ions), one of the colliding partners loses some kinetic energy and the other picks it up. However, the gain in energy co ...
... The way to get heat out of an interstellar cloud is for the particles that make up to cloud to collide with each other. In a collision between two particles (atoms or molecules or ions), one of the colliding partners loses some kinetic energy and the other picks it up. However, the gain in energy co ...
or view
... Our own galaxy, the Milky Way, is around 120 000 light years across and the Sun occupies a position roughly 28 000 light years from the centre. Within the Milky Way, the nearest star to the Sun is Proxima Centauri, which is about 4.4 light years away. But most of our nearest stars are between 100 an ...
... Our own galaxy, the Milky Way, is around 120 000 light years across and the Sun occupies a position roughly 28 000 light years from the centre. Within the Milky Way, the nearest star to the Sun is Proxima Centauri, which is about 4.4 light years away. But most of our nearest stars are between 100 an ...
A Sense of Scale - Young Scientists Journal
... extended period of sunspot minimums, but its magnetic field is less than half of the minimum recorded 22 years ago, and the Solar Wind has cooled by 13% in the last two decades. [7] Our next step up takes us to subgiant stars. These stars are in the process of swelling up to giant stars, which usual ...
... extended period of sunspot minimums, but its magnetic field is less than half of the minimum recorded 22 years ago, and the Solar Wind has cooled by 13% in the last two decades. [7] Our next step up takes us to subgiant stars. These stars are in the process of swelling up to giant stars, which usual ...
Lecture24
... The CMB was already visible in the data taken by Dunham and Adams of the properties of CN in the interstellar medium …back in 1937 The saw that CN was excited as if it was immersed in a thermal bath of radiation of temperature ...
... The CMB was already visible in the data taken by Dunham and Adams of the properties of CN in the interstellar medium …back in 1937 The saw that CN was excited as if it was immersed in a thermal bath of radiation of temperature ...
Name
... 57. Scientists believe that the universe is not a constant size but is ____________________ 58. When light coming from an object has longer wavelengths than expected (called a red shift), it means that object is moving _______________from us. The greater the red shift, the _______________________it ...
... 57. Scientists believe that the universe is not a constant size but is ____________________ 58. When light coming from an object has longer wavelengths than expected (called a red shift), it means that object is moving _______________from us. The greater the red shift, the _______________________it ...
CHAPTER @2- Solar Sun and Earth
... That star, a typical yellow star in a solar system is our Sun, only one of billions in the Milky Way Galaxy, which is one of billions of galaxies in the Universe. Our Sun is located on a remote, trailing edge of the Milky Way Galaxy, a flattened, diskshaped mass estimated to contain up to 400 billio ...
... That star, a typical yellow star in a solar system is our Sun, only one of billions in the Milky Way Galaxy, which is one of billions of galaxies in the Universe. Our Sun is located on a remote, trailing edge of the Milky Way Galaxy, a flattened, diskshaped mass estimated to contain up to 400 billio ...
Review Astronomy - Cowley`s Earth Systems
... Formed by radioactive decay deep within Earth’s core Formed by black holes scattered throughout the galaxy Formed by comets and asteroids falling to Earth ...
... Formed by radioactive decay deep within Earth’s core Formed by black holes scattered throughout the galaxy Formed by comets and asteroids falling to Earth ...
Star Formation
... • Interstellar gas, like the sun, is 74% hydrogen and 25% helium. • Interstellar dust, like clouds in the gas giants, are molecular carbon monoxide, ammonia, and water. • Traces of all other elements are present. ...
... • Interstellar gas, like the sun, is 74% hydrogen and 25% helium. • Interstellar dust, like clouds in the gas giants, are molecular carbon monoxide, ammonia, and water. • Traces of all other elements are present. ...
PowerPoint Lecture - UCSD Department of Physics
... • Hard to believe that we are • Assumptions (restrictive version): – must have solid planet to start life – planet must be in habitable zone (liquid water) – >10% of stars have planets • already see >5%, and just getting started ...
... • Hard to believe that we are • Assumptions (restrictive version): – must have solid planet to start life – planet must be in habitable zone (liquid water) – >10% of stars have planets • already see >5%, and just getting started ...
Lecture 18
... Takes the Sun 200million years to orbit Milky Way. Sun is 4600 million years old. The Sun is 23 Galactic Years Old. ...
... Takes the Sun 200million years to orbit Milky Way. Sun is 4600 million years old. The Sun is 23 Galactic Years Old. ...
STARDUST Presentation
... Thermoproteus tenax (a "primitive" organism) use menaquinones as their primary quinone, and in most Bacteria and Archaea, MK and related naphthoquinones seem to be very fundamental = ancient: are manufactured via Shikimate, couple important biochemical reactions (i.e. Fumarate to Succinate), are inv ...
... Thermoproteus tenax (a "primitive" organism) use menaquinones as their primary quinone, and in most Bacteria and Archaea, MK and related naphthoquinones seem to be very fundamental = ancient: are manufactured via Shikimate, couple important biochemical reactions (i.e. Fumarate to Succinate), are inv ...
Lecture 5
... There is a VERY fast increase in nuclear energy production above 1,000,000K. At 15,000,000K in the core nuclear power generated finally balanced the luminosity from the surface. That’s the equilibrium we are still in. ...
... There is a VERY fast increase in nuclear energy production above 1,000,000K. At 15,000,000K in the core nuclear power generated finally balanced the luminosity from the surface. That’s the equilibrium we are still in. ...
te acher`s guide te acher`s guide
... Stars asks the following five questions about our Sun and all of its shining counterparts. Space travelers Adi and Woops help viewers clearly answer each question using computer graphics and space footage. What are the signs of the zodiac? The signs of the zodiac are twelve different groups of stars ...
... Stars asks the following five questions about our Sun and all of its shining counterparts. Space travelers Adi and Woops help viewers clearly answer each question using computer graphics and space footage. What are the signs of the zodiac? The signs of the zodiac are twelve different groups of stars ...
File - Etna FFA Agriculture
... How is animal breeding cycles impacted by the rotation of Earth? Sheep are seasonal breeders, with the majority being short-day breeders that cycle in the fall and lamb in the spring of the year. However, some breeds of sheep will cycle in the spring and have lambs in the fall. Through the ey ...
... How is animal breeding cycles impacted by the rotation of Earth? Sheep are seasonal breeders, with the majority being short-day breeders that cycle in the fall and lamb in the spring of the year. However, some breeds of sheep will cycle in the spring and have lambs in the fall. Through the ey ...
8 Grade SOL Review Packet
... ____________ are caused by the Moon’s gravitational pull. Since the oceans are liquid water, they can move freely in the direction of the moon’s ______________________pull. Each ocean shore experiences _______ high tides and two low tides per day…Because the Earth spins on its ______ once in a 24 ho ...
... ____________ are caused by the Moon’s gravitational pull. Since the oceans are liquid water, they can move freely in the direction of the moon’s ______________________pull. Each ocean shore experiences _______ high tides and two low tides per day…Because the Earth spins on its ______ once in a 24 ho ...
Date - Penn Physics
... The tutorials in boldface should be completed and submitted prior to class. The movies are strongly recommend. The other online materials and materials from the SkyGazer CD Rom are optional. (The recommended SkyGazer items are listed in the expanded syllabus available on the Blackboard course websit ...
... The tutorials in boldface should be completed and submitted prior to class. The movies are strongly recommend. The other online materials and materials from the SkyGazer CD Rom are optional. (The recommended SkyGazer items are listed in the expanded syllabus available on the Blackboard course websit ...
The Big Bang
... • If the big bang theory is correct, the energy left from the big bang will be evenly spread out throughout the universe. • This energy is known as background radiation. ...
... • If the big bang theory is correct, the energy left from the big bang will be evenly spread out throughout the universe. • This energy is known as background radiation. ...
Astronomy and Space Science
... Saturn’s volume is 762 times the volume of Earth, and yet its mass is only about 95 times that of Earth’s mass. This is due to Saturn’s — A B C D ...
... Saturn’s volume is 762 times the volume of Earth, and yet its mass is only about 95 times that of Earth’s mass. This is due to Saturn’s — A B C D ...
Today`s Powerpoint
... Flares: A more energetic eruption. Lasts for minutes. Less well understood. ...
... Flares: A more energetic eruption. Lasts for minutes. Less well understood. ...
Unit 3 - Lesson 8.2 2011 Sun
... The sun rotates on its axis one time every 25 days. currents are caused as a heated material is forced away from the core while cooled materials fall back down. are darker, cooler areas visible on the sun’s photosphere are found in active regions and release large quantities of gas (big bulge) _____ ...
... The sun rotates on its axis one time every 25 days. currents are caused as a heated material is forced away from the core while cooled materials fall back down. are darker, cooler areas visible on the sun’s photosphere are found in active regions and release large quantities of gas (big bulge) _____ ...
Star Planet - Stony Brook Astronomy
... will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, but we will watch it disperse over the next 10,000 Earth years. C. The image of the supernova dispersing will not ...
... will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, but we will watch it disperse over the next 10,000 Earth years. C. The image of the supernova dispersing will not ...
ASTR 105 Intro Astronomy: The Solar System
... A moderately large object that orbits a star. Planets may be rocky, icy, or gaseous in ...
... A moderately large object that orbits a star. Planets may be rocky, icy, or gaseous in ...
Chapter 1: Thinking Geographically
... up this way? – Communities, cultures and cities are set up the same way, why? – The arrangement of a feature in space is known as distribution • There are three main properties of distribution; density, concentration and pattern ...
... up this way? – Communities, cultures and cities are set up the same way, why? – The arrangement of a feature in space is known as distribution • There are three main properties of distribution; density, concentration and pattern ...
Outer space
Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.