Stars Answers - Science Skool!
... the elements throughout space. The core left behind forms a neutron star or black hole if sufficient mass is left behind 9. Why do scientists believe the Solar System was formed from the material produced when earlier stars exploded? Solar System contains elements heavier than hydrogen and helium wh ...
... the elements throughout space. The core left behind forms a neutron star or black hole if sufficient mass is left behind 9. Why do scientists believe the Solar System was formed from the material produced when earlier stars exploded? Solar System contains elements heavier than hydrogen and helium wh ...
Name Date ______ Period _____ Earth Science Chapter 25 Study
... What is the name for the interstellar matter that will eventually form a star? __________________________________________________________________ When is a star said to be born? __________________________________________________________________ What forces are most responsible for the formation of a ...
... What is the name for the interstellar matter that will eventually form a star? __________________________________________________________________ When is a star said to be born? __________________________________________________________________ What forces are most responsible for the formation of a ...
REVIEW: STAR`S TEST
... What force causes particles of stellar dust to become attracted to each other ? _GRAVITY__ The most widely held astronomical theory about the origin of the universe is the BIG BANG theory. The fact that the spectra of stars are shifted towards the red suggests that the stars are moving _AWAY____ Dia ...
... What force causes particles of stellar dust to become attracted to each other ? _GRAVITY__ The most widely held astronomical theory about the origin of the universe is the BIG BANG theory. The fact that the spectra of stars are shifted towards the red suggests that the stars are moving _AWAY____ Dia ...
PHYS 175 Fall 2014 Final Recitation Ch. 16 The Sun
... Elliptical: among the most massive galaxies, few younger stars (Pop. II and old Pop. I), about 20% of observed galaxies, stars formed quickly Spiral (barred and grand design): most common (~77%) type observed and span less mass scales, star formation active in spiral arms, supported by density waves ...
... Elliptical: among the most massive galaxies, few younger stars (Pop. II and old Pop. I), about 20% of observed galaxies, stars formed quickly Spiral (barred and grand design): most common (~77%) type observed and span less mass scales, star formation active in spiral arms, supported by density waves ...
Comparing Earth, Sun and Jupiter
... Energy is transported to the surface via either radiation or convection. The Sun has a convective envelope and radiative interior. Low mass main-sequence stars are entirely convective. More massive stars are much more luminous (the fusion reactions release much more energy) Therefore they bu ...
... Energy is transported to the surface via either radiation or convection. The Sun has a convective envelope and radiative interior. Low mass main-sequence stars are entirely convective. More massive stars are much more luminous (the fusion reactions release much more energy) Therefore they bu ...
Overview - School District of La Crosse
... I star distance is great- nearest is 250,000 A.U.’s A. chances of collision is very small 1. the A.U. is too small of a unit to express star distance a. use the light year- The distance light can travel in one year( 6 trillion miles, 9 trillion Km) ...
... I star distance is great- nearest is 250,000 A.U.’s A. chances of collision is very small 1. the A.U. is too small of a unit to express star distance a. use the light year- The distance light can travel in one year( 6 trillion miles, 9 trillion Km) ...
Our Universe (ES1-E) I know that our Sun is one of hundreds of
... around 30 galaxies called the _________ _________ galaxy cluster. • The largest galaxies in the Local Group are the Milky Way and the ____________ galaxy • The Andromeda galaxy is one of the __________ spiral galaxies known. It is 2.4 million light years away. ...
... around 30 galaxies called the _________ _________ galaxy cluster. • The largest galaxies in the Local Group are the Milky Way and the ____________ galaxy • The Andromeda galaxy is one of the __________ spiral galaxies known. It is 2.4 million light years away. ...
(the factor f star in the Drake equation. Recall it
... The clumping of the mass at first resulted in dust clouds (of helium and hydrogen) but as it progressed, the centers of the more massive clouds and the pressure due to the gravitational attraction got larger and larger in them. Eventually, the pressure was so great that the nuclei of the atoms star ...
... The clumping of the mass at first resulted in dust clouds (of helium and hydrogen) but as it progressed, the centers of the more massive clouds and the pressure due to the gravitational attraction got larger and larger in them. Eventually, the pressure was so great that the nuclei of the atoms star ...
RFS_multiple_choice_Dec8_Key
... B. They are all objects for which the first detailed study was carried out by the Mauna Kea Observatory in Hawaii C. Objects which lie within 5 degrees on either side of the ecliptic, and are hence occulted by the moon at some time or the other. D. All of them lie in the Milky Way band of the sky (t ...
... B. They are all objects for which the first detailed study was carried out by the Mauna Kea Observatory in Hawaii C. Objects which lie within 5 degrees on either side of the ecliptic, and are hence occulted by the moon at some time or the other. D. All of them lie in the Milky Way band of the sky (t ...
Option: Astrophysics Objects in the Universe: Asteroid: a small rocky
... 1. All the orbits of the planets are prograde a. Rotates counterclockwise if viewed from the North Pole of the sun 2. All planets have orbital planes that are inclined by less than 6° 3. Terrestrial planets are dense, rocky and small; Jovian planets are gaseous and ...
... 1. All the orbits of the planets are prograde a. Rotates counterclockwise if viewed from the North Pole of the sun 2. All planets have orbital planes that are inclined by less than 6° 3. Terrestrial planets are dense, rocky and small; Jovian planets are gaseous and ...
Physical properties of stars
... that are 1,000 times larger than our sun. pg. 450 Temperature: Surface temperatures range from 3000K to 30,000K Color is an indication of temperature. Blue hottest White Yellow Orange Red coolest Mass While the size of stars varies widely the mass does not. 15 times our Sun’s mass to .2 times our Su ...
... that are 1,000 times larger than our sun. pg. 450 Temperature: Surface temperatures range from 3000K to 30,000K Color is an indication of temperature. Blue hottest White Yellow Orange Red coolest Mass While the size of stars varies widely the mass does not. 15 times our Sun’s mass to .2 times our Su ...
Chapter 28 Vocabulary
... Main sequence star - A star that is at the point in its life cycle in which it is actively fusing hydrogen nuclei into helium nuclei; also the band of the Hertzsprun-Russell diagram depicting such stars. ...
... Main sequence star - A star that is at the point in its life cycle in which it is actively fusing hydrogen nuclei into helium nuclei; also the band of the Hertzsprun-Russell diagram depicting such stars. ...
Allison McGraw - WordPress.com
... Orionis (β Ori, β Orionis), is the brightest star in the constellation Orion and the seventh brightest star in the night sky, with visual magnitude 0.13. The star as seen from Earth is actually a triple star system, with the primary star (Rigel A) a bluewhite supergiant of absolute magnitude −7.84 a ...
... Orionis (β Ori, β Orionis), is the brightest star in the constellation Orion and the seventh brightest star in the night sky, with visual magnitude 0.13. The star as seen from Earth is actually a triple star system, with the primary star (Rigel A) a bluewhite supergiant of absolute magnitude −7.84 a ...
Lesson 16.3
... You can see Ursa Major all year. But other constellations can only be seen at certain times of the year. Canis Major is a constellation we see only in the winter. The constellations change with the seasons. This is because Earth rotates, or spins. It takes Earth one year to move around the Sun. We s ...
... You can see Ursa Major all year. But other constellations can only be seen at certain times of the year. Canis Major is a constellation we see only in the winter. The constellations change with the seasons. This is because Earth rotates, or spins. It takes Earth one year to move around the Sun. We s ...
Lecture 02a: Setting a context for us in the Universe
... The smallest stars have very little raw fuel… …but, they use it sparingly Tiny stars live very, very long times Tiny stars produce low energy radiation ...
... The smallest stars have very little raw fuel… …but, they use it sparingly Tiny stars live very, very long times Tiny stars produce low energy radiation ...
astrophysics 2009
... -a galaxy is a collection of 100 billion stars, dust and gas held together by gravity. They can be spiral shaped, or elliptical though some are irregular. Our galaxy, the Milky Way is spiral. -within a galaxy a close group of bound stars is called a cluster. A globular cluster has about 105 stars sy ...
... -a galaxy is a collection of 100 billion stars, dust and gas held together by gravity. They can be spiral shaped, or elliptical though some are irregular. Our galaxy, the Milky Way is spiral. -within a galaxy a close group of bound stars is called a cluster. A globular cluster has about 105 stars sy ...
Topic E: Astrophysics
... revolution of the Earth. This is the basic background for stellar parallax. Other observations, for example, seasons and the motion of planets, are not expected ...
... revolution of the Earth. This is the basic background for stellar parallax. Other observations, for example, seasons and the motion of planets, are not expected ...
Chapter 5 Mid-term Study Guide
... ______ The star collapses again and then explodes as a nova or supernova. ______ A cloud of dust and gas is drawn together by its own gravity. ______ The star continues to give off the same amount of energy for billions of years. ______ The star swells to a red giant or supergiant. ______ It collaps ...
... ______ The star collapses again and then explodes as a nova or supernova. ______ A cloud of dust and gas is drawn together by its own gravity. ______ The star continues to give off the same amount of energy for billions of years. ______ The star swells to a red giant or supergiant. ______ It collaps ...
Midterm II Jeopardy
... $800 - Before reaching the MS, a protostar is doing this (Contracting) $1200 – When a star first leaves the MS it becomes this (Red Giant) $1600 - This prevents collapse of the star at the center of a planetary nebula (Electron degeneracy pressure) Sharp Things (stars): $400 - This “failed star” did ...
... $800 - Before reaching the MS, a protostar is doing this (Contracting) $1200 – When a star first leaves the MS it becomes this (Red Giant) $1600 - This prevents collapse of the star at the center of a planetary nebula (Electron degeneracy pressure) Sharp Things (stars): $400 - This “failed star” did ...
Characteristics of Stars PLATO
... around the sun became planets. • The 4 inner planets lost most of their gas because they were too hot. (Mercury, Venus, Earth, Mars) • The 4 outer planets became gas ...
... around the sun became planets. • The 4 inner planets lost most of their gas because they were too hot. (Mercury, Venus, Earth, Mars) • The 4 outer planets became gas ...
Quiz #4 – The Electromagnetic Spectrum and Stars
... The process that occurs when atoms combine to form a new element and release energy is called _________________. ...
... The process that occurs when atoms combine to form a new element and release energy is called _________________. ...
wk9 (part 1)
... • Giant molecular clouds: consist of mostly H2 plus a small amount of other, more complex molecules ...
... • Giant molecular clouds: consist of mostly H2 plus a small amount of other, more complex molecules ...
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.