Spiral Elliptical Irregular - SMS 8th Grade Astronomy Unit
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
Worksheet: Stars and the HR Diagram
... Background: The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their absolute magnitude, which is how bright they would appear to be if they were al the same distance away. Rather than speak of the br ...
... Background: The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their absolute magnitude, which is how bright they would appear to be if they were al the same distance away. Rather than speak of the br ...
No Slide Title
... Connection between kinematics and geometry: thick disk of high-metallicity globular clusters (left-hand panel) is made of objects on low-inclination, nearly-circular orbits <=> the system has some prograde rotation. Spherical system (right panel) has completely disorganized motions, no rotation on a ...
... Connection between kinematics and geometry: thick disk of high-metallicity globular clusters (left-hand panel) is made of objects on low-inclination, nearly-circular orbits <=> the system has some prograde rotation. Spherical system (right panel) has completely disorganized motions, no rotation on a ...
Galaxy - Bama.ua.edu
... • Most globular clusters are seen on one side of the sky • Shapley plotted their directions and distances • A spherical swarm whose center is in the direction of the nearby stars of the constellation Sagittarius. • Center ~30,000 light years away. ...
... • Most globular clusters are seen on one side of the sky • Shapley plotted their directions and distances • A spherical swarm whose center is in the direction of the nearby stars of the constellation Sagittarius. • Center ~30,000 light years away. ...
Exam2 Review Slides
... • A hydrogen nucleus has less mass than the four protons (hydrogen nuclei) that fuse • This difference in mass is converted into energy: ...
... • A hydrogen nucleus has less mass than the four protons (hydrogen nuclei) that fuse • This difference in mass is converted into energy: ...
Life Cycle Of A Star
... A supernova is the explosive end of a stars life and is amazingly bright for a few breif moments. A change in the core of a star, it can happen two ways and either way it results in a supernova. The first way is in binary star systems where gas from a star falls onto a white dwarf and holding too mu ...
... A supernova is the explosive end of a stars life and is amazingly bright for a few breif moments. A change in the core of a star, it can happen two ways and either way it results in a supernova. The first way is in binary star systems where gas from a star falls onto a white dwarf and holding too mu ...
Characteristics of Stars
... • Are hot balls of plasma that shine because nuclear fusion is happening at their cores… they create their own light • Have different characteristics which allow many different ‘varieties’ of stars to exist ...
... • Are hot balls of plasma that shine because nuclear fusion is happening at their cores… they create their own light • Have different characteristics which allow many different ‘varieties’ of stars to exist ...
Oct 2017 - What`s Out Tonight?
... cury, Venus, Mars, Jupiter and Saturn. Venus is extremely bright Open clusters reside in our Milky Way Galaxy. Our Sun is no and hugs close to the Sun, so you see it for a short time in the longer in its group. west after sunset or in the east before sunrise. Jupiter can be out Globular Clusters loo ...
... cury, Venus, Mars, Jupiter and Saturn. Venus is extremely bright Open clusters reside in our Milky Way Galaxy. Our Sun is no and hugs close to the Sun, so you see it for a short time in the longer in its group. west after sunset or in the east before sunrise. Jupiter can be out Globular Clusters loo ...
10.5 The Hertzsprung
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. The darkened curve is called the Main Sequence, as this is where most stars are. Also indicated is the white dwarf region; these stars are hot but not very luminous, as they are quite s ...
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. The darkened curve is called the Main Sequence, as this is where most stars are. Also indicated is the white dwarf region; these stars are hot but not very luminous, as they are quite s ...
No Slide Title
... Borealis or Northern Lights (and the Aurora Australis or Southern Lights). As the solar wind approaches the earth, it gets caught in the earth’s magnet field, the magnetosphere, some of the particles, especially after a massive solar storm, get funneled along the lines of the earth’s magnet field do ...
... Borealis or Northern Lights (and the Aurora Australis or Southern Lights). As the solar wind approaches the earth, it gets caught in the earth’s magnet field, the magnetosphere, some of the particles, especially after a massive solar storm, get funneled along the lines of the earth’s magnet field do ...
Monthly Target Matrix Excel
... Each month the sky presents us with a dazzling assortment of spectacular objects on which to train our telescopes: variable stars, nebulae, galaxies, and clusters of galaxies, to name a few. As the Earth makes its yearly trip aroundthe Sun, different objects slide into view in the nighttime sky. Any ...
... Each month the sky presents us with a dazzling assortment of spectacular objects on which to train our telescopes: variable stars, nebulae, galaxies, and clusters of galaxies, to name a few. As the Earth makes its yearly trip aroundthe Sun, different objects slide into view in the nighttime sky. Any ...
Note Taking Guide #2: Characteristics of Stars Welcome back! As
... sun versus Alpha Centauri; the sun appears to give off much more light, even though the two stars are actually very similar in size and temperature. A star’s absolute magnitude is how much light a star would actually give off if it were a standard distance from Erath. Think of it this way: two simil ...
... sun versus Alpha Centauri; the sun appears to give off much more light, even though the two stars are actually very similar in size and temperature. A star’s absolute magnitude is how much light a star would actually give off if it were a standard distance from Erath. Think of it this way: two simil ...
(Star Stuff) ( 11-9-10)
... Stars like our Sun become Red Giants after they leave the M.S. and eventually White Dwarfs ...
... Stars like our Sun become Red Giants after they leave the M.S. and eventually White Dwarfs ...
Study Guide: Unit 1, The Universe and its Stars, HS
... 12) HS-ESS1-1 The name applied to concentrations of interstellar matter that glow when it is close to very hot stars is ________. A) granules B) prominences C) nebulas D) quasars E) plages 13) HS-ESS1-1 As _____________ shrinks, gravitational energy is converted into energy of motion, or heat energy ...
... 12) HS-ESS1-1 The name applied to concentrations of interstellar matter that glow when it is close to very hot stars is ________. A) granules B) prominences C) nebulas D) quasars E) plages 13) HS-ESS1-1 As _____________ shrinks, gravitational energy is converted into energy of motion, or heat energy ...
Astrophysics
... If galaxies are moving away from us, they must have been closer together millions of years ago. If Hubble’s graph is used, the origin of this movement = approx. 10 000 million years old ...
... If galaxies are moving away from us, they must have been closer together millions of years ago. If Hubble’s graph is used, the origin of this movement = approx. 10 000 million years old ...
Final review - Physics and Astronomy
... R* =The rate of formation of stars suitable for the development of intelligent life. fp = The fraction of those stars with planetary systems. ne = The number of planets, per solar system, with an environment suitable for life. fl = The fraction of suitable planets on which life actually appears. fi ...
... R* =The rate of formation of stars suitable for the development of intelligent life. fp = The fraction of those stars with planetary systems. ne = The number of planets, per solar system, with an environment suitable for life. fl = The fraction of suitable planets on which life actually appears. fi ...
Test 3 Version 3 1. Milky Way halo stars follow: (a) differential
... 1. Milky Way halo stars follow: (a) differential rotation, (b) solid disk rotation, (c) randomly inclined elliptical orbits, (d) randomly inclined circular orbits. 2. Which of the following is false: The Milky Way is (a) diffuse band of light across the sky, (b) a spiral galaxy, (c) the galaxy the s ...
... 1. Milky Way halo stars follow: (a) differential rotation, (b) solid disk rotation, (c) randomly inclined elliptical orbits, (d) randomly inclined circular orbits. 2. Which of the following is false: The Milky Way is (a) diffuse band of light across the sky, (b) a spiral galaxy, (c) the galaxy the s ...
May 2015 - Hermanus Astronomy
... out stars at a prodigious rate, about 30 times faster than today. Our Sun, however, is a late ‘boomer’. The Milky Way’s star-birthing frenzy peaked 10 billion years ago, but our Sun was late for the party, not forming until roughly 5 billion years ago. By that time, the star formation rate in our ga ...
... out stars at a prodigious rate, about 30 times faster than today. Our Sun, however, is a late ‘boomer’. The Milky Way’s star-birthing frenzy peaked 10 billion years ago, but our Sun was late for the party, not forming until roughly 5 billion years ago. By that time, the star formation rate in our ga ...
1 au d p = 1 au d
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
and Concept Self-test (1,2,3,5,6,7,8,9)
... possesses a surface gravitational field about 2 x 1011 times that of Earth. ...
... possesses a surface gravitational field about 2 x 1011 times that of Earth. ...
Life Cycle of Stars
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
spring_2002_final - University of Maryland Astronomy
... astronomers mean when they say that “the universe is expanding?” Discuss Hubble’s observations that led to the conclusion that the universe is expanding. (5 pts.) 53. a) How are galaxies arranged in space? Describe mapping methods and results. (5 pts.) b) Why can't the center of the Milky Way be pho ...
... astronomers mean when they say that “the universe is expanding?” Discuss Hubble’s observations that led to the conclusion that the universe is expanding. (5 pts.) 53. a) How are galaxies arranged in space? Describe mapping methods and results. (5 pts.) b) Why can't the center of the Milky Way be pho ...
Unit 1
... to the main sequence, stay for a while, and eventually move through giant stages before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
... to the main sequence, stay for a while, and eventually move through giant stages before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
H II region
An H II region is a large, low-density cloud of partially ionized gas in which star formation has recently taken place. The short-lived blue stars forged in these regions emit copious amounts of ultraviolet light that ionize the surrounding gas. H II regions—sometimes several hundred light-years across—are often associated with giant molecular clouds. The first known H II region was the Orion Nebula, which was discovered in 1610 by Nicolas-Claude Fabri de Peiresc.H II regions are named for the large amount of ionised atomic hydrogen they contain, referred to as H II, pronounced H-two by astronomers (an H I region being neutral atomic hydrogen, and H2 being molecular hydrogen). Such regions have extremely diverse shapes, because the distribution of the stars and gas inside them is irregular. They often appear clumpy and filamentary, sometimes showing bizarre shapes such as the Horsehead Nebula. H II regions may give birth to thousands of stars over a period of several million years. In the end, supernova explosions and strong stellar winds from the most massive stars in the resulting star cluster will disperse the gases of the H II region, leaving behind a cluster of birthed stars such as the Pleiades.H II regions can be seen to considerable distances in the universe, and the study of extragalactic H II regions is important in determining the distance and chemical composition of other galaxies. Spiral and irregular galaxies contain many H II regions, while elliptical galaxies are almost devoid of them. In the spiral galaxies, including the Milky Way, H II regions are concentrated in the spiral arms, while in the irregular galaxies they are distributed chaotically. Some galaxies contain huge H II regions, which may contain tens of thousands of stars. Examples include the 30 Doradus region in the Large Magellanic Cloud and NGC 604 in the Triangulum Galaxy.