Star Formation
... Tarantula Nebula: if it was as close as the Orion Nebula it’d be as big as 60 full moons ...
... Tarantula Nebula: if it was as close as the Orion Nebula it’d be as big as 60 full moons ...
The Milky Way - Midlandstech
... is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer three essential questions: • What happens as a star uses up its hydrogen? • What happens when a star exhausts its hydrogen? • What evidence do astronomers ha ...
... is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer three essential questions: • What happens as a star uses up its hydrogen? • What happens when a star exhausts its hydrogen? • What evidence do astronomers ha ...
The Milky Way - 清華大學物理系歡迎頁 Welcome to
... is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer three essential questions: • What happens as a star uses up its hydrogen? • What happens when a star exhausts its hydrogen? • What evidence do astronomers ha ...
... is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer three essential questions: • What happens as a star uses up its hydrogen? • What happens when a star exhausts its hydrogen? • What evidence do astronomers ha ...
File - SMIC Physics
... Supergiants and Supernovas • Stars more than 8x massive than Sun → evolution occurs more quickly and more violently • Massive stars → core heats up to higher temps → heavier elements form by fusion (becoz higher temp is needed to fuse bigger elements. Eg : He → C needs higher temp) → star expands i ...
... Supergiants and Supernovas • Stars more than 8x massive than Sun → evolution occurs more quickly and more violently • Massive stars → core heats up to higher temps → heavier elements form by fusion (becoz higher temp is needed to fuse bigger elements. Eg : He → C needs higher temp) → star expands i ...
Background Information - Eu-Hou
... In the early 20th century, after investigating the effects of an object’s temperature and of the colour of its radiation, scientists reasoned that there should be a relationship between the temperature of a star and its luminosity. If all stars were alike, those with the same luminosity would have e ...
... In the early 20th century, after investigating the effects of an object’s temperature and of the colour of its radiation, scientists reasoned that there should be a relationship between the temperature of a star and its luminosity. If all stars were alike, those with the same luminosity would have e ...
Life Cycle of a Star
... temperature of each star by its outer most layer or its photosphere. O stars, which are the hottest of the seven categories, are blue in color. M stars, which are the coolest, are red. Within the range of this spectrum, there are yellow or orange stars (like our sun which is a G star) and white star ...
... temperature of each star by its outer most layer or its photosphere. O stars, which are the hottest of the seven categories, are blue in color. M stars, which are the coolest, are red. Within the range of this spectrum, there are yellow or orange stars (like our sun which is a G star) and white star ...
powerpoint - Physics @ IUPUI
... Absolute Magnitude • RR Lyrae have an average absolute magnitude of 0.75. • Why is that an advantage? • What is the disadvantage if you are looking at other galaxies? ...
... Absolute Magnitude • RR Lyrae have an average absolute magnitude of 0.75. • Why is that an advantage? • What is the disadvantage if you are looking at other galaxies? ...
And let there be light!
... Created the earth centered model of the solar system = geo-centric. Ptolemy’s model stood unchallenged for 1400 years. This was due to the fact that it proposed that Earth was the center of the universe and this matched with the Church’s teaching that Earth and its inhabitants were the center the un ...
... Created the earth centered model of the solar system = geo-centric. Ptolemy’s model stood unchallenged for 1400 years. This was due to the fact that it proposed that Earth was the center of the universe and this matched with the Church’s teaching that Earth and its inhabitants were the center the un ...
Branches of Earth Science Tools Used to Study Stars Constellations
... Spectroscope: Breaks light from a distant star into its characteristic colors o SPECTRUM: the band of colors that forms as light passes through a prism o Used to see if galaxies are moving away or toward the earth Telescopes: device that makes distant objects appear closer Types of Telescopes o Opti ...
... Spectroscope: Breaks light from a distant star into its characteristic colors o SPECTRUM: the band of colors that forms as light passes through a prism o Used to see if galaxies are moving away or toward the earth Telescopes: device that makes distant objects appear closer Types of Telescopes o Opti ...
J S U N I L T U... 2011 “Chase Excellence- Success Will Follow” ll Follow”
... (ii) Meteors Meteors are small celestial objects that are seen as bright streaks of light in the sky. They brunt out on entering the Earth’s atmosphere because of the heat produced by friction. This results in bright streaks in the sky. They are not planets. 11. Explain how you can locate the Pole S ...
... (ii) Meteors Meteors are small celestial objects that are seen as bright streaks of light in the sky. They brunt out on entering the Earth’s atmosphere because of the heat produced by friction. This results in bright streaks in the sky. They are not planets. 11. Explain how you can locate the Pole S ...
Diapositiva 1
... enormous but extremely faint halo of gaseous material, over three lightyears across, which surrounds the brighter, familiar planetary nebula. Made with data from the Nordic Optical Telescope in the Canary Islands, the composite picture shows extended emission from the nebula. Planetary nebulae have ...
... enormous but extremely faint halo of gaseous material, over three lightyears across, which surrounds the brighter, familiar planetary nebula. Made with data from the Nordic Optical Telescope in the Canary Islands, the composite picture shows extended emission from the nebula. Planetary nebulae have ...
Binary Stars
... Take a spectrum of a single dot of light, and note and measure the positions of the absorption lines. Since there are two bright stars in the unresolved binary, there should be two sets of absorption lines, with different velocities. This is because at a given instant, one star is approaching, the o ...
... Take a spectrum of a single dot of light, and note and measure the positions of the absorption lines. Since there are two bright stars in the unresolved binary, there should be two sets of absorption lines, with different velocities. This is because at a given instant, one star is approaching, the o ...
Chapter 8: Stars
... • The combination of their ideas is now called the Hertzsprung-Russell Diagram, or HR Diagram. • The HR Diagram is a graph that shows the relationship between a stars’ surface temperature and its absolute magnitude. • The modern HR Diagram is shown below. ...
... • The combination of their ideas is now called the Hertzsprung-Russell Diagram, or HR Diagram. • The HR Diagram is a graph that shows the relationship between a stars’ surface temperature and its absolute magnitude. • The modern HR Diagram is shown below. ...
Stars and Galaxies
... The stars in a galaxy are very far apart. Scientists believe there may be as many as 100 000 million other galaxies beyond ours. Because gravity attracts them together, the stars in a galaxy are clustered. There are vast expanses of nothing between different galaxies. ...
... The stars in a galaxy are very far apart. Scientists believe there may be as many as 100 000 million other galaxies beyond ours. Because gravity attracts them together, the stars in a galaxy are clustered. There are vast expanses of nothing between different galaxies. ...
Oceanography Chapter 1 – “Origins”
... iron form inside stars, the remaining elements form during a supernova explosion. ...
... iron form inside stars, the remaining elements form during a supernova explosion. ...
The Hidden Lives of Galaxies NSTA 2001
... • 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. ...
Stars & Cosmology
... Sun started hydrogen burning in its core more than 4.5 billion years ago on the main sequence (at point 1), and it will remain near that point on the diagram for several billion years more. As the hydrogen in the core is consumed, however, a short period of helium burning (point 2) will move the Sun ...
... Sun started hydrogen burning in its core more than 4.5 billion years ago on the main sequence (at point 1), and it will remain near that point on the diagram for several billion years more. As the hydrogen in the core is consumed, however, a short period of helium burning (point 2) will move the Sun ...
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. ...
The Hertzsprung-Russell Diagram
... Most stars lie in the main sequence because if a star is hotter it is brighter. Thus you would expect stars of the same size but different temperatures to form a diagonal line since “hotter means brighter” That Main-Sequence is steeper than a ‘same-size diagonal” shows that larger mass ‘normal’ star ...
... Most stars lie in the main sequence because if a star is hotter it is brighter. Thus you would expect stars of the same size but different temperatures to form a diagonal line since “hotter means brighter” That Main-Sequence is steeper than a ‘same-size diagonal” shows that larger mass ‘normal’ star ...
Montage of Jupiter and the Galilean satellites
... luminosity, in units of the SunΥsluminosity. The solid white lin es show where stars of different luminosity classes fall on the diagram; supergiants at the very top; giants just below them; and finally mainsequence stars. The relative sizes of the stars are shown correctly within each luminosity cl ...
... luminosity, in units of the SunΥsluminosity. The solid white lin es show where stars of different luminosity classes fall on the diagram; supergiants at the very top; giants just below them; and finally mainsequence stars. The relative sizes of the stars are shown correctly within each luminosity cl ...
Big Bang Theory Scientific origin of the Universe
... effect arises because the sound waves arrive at the listener's ear closer together as the source approaches, and further apart as it recedes. ...
... effect arises because the sound waves arrive at the listener's ear closer together as the source approaches, and further apart as it recedes. ...
2. Stellar Physics
... fusion reactions in the stellar interior Other energy sources are dominant during star formation and stellar death: • Star formation - before the interior is hot enough for significant fusion, gravitational potential energy is radiated as the radius of the forming star contracts. Protostellar or pre ...
... fusion reactions in the stellar interior Other energy sources are dominant during star formation and stellar death: • Star formation - before the interior is hot enough for significant fusion, gravitational potential energy is radiated as the radius of the forming star contracts. Protostellar or pre ...
Spectroscopy in stellar astrophysics
... The spectrograph is the instrument which disperses the light in the whole wavelength interval. The dispersed light impacts the CCD camera and we get the spectrum of the celestial object. ...
... The spectrograph is the instrument which disperses the light in the whole wavelength interval. The dispersed light impacts the CCD camera and we get the spectrum of the celestial object. ...
stars_2nd_edit
... Red Dwarf stars can range in size from a hundred times smaller than the sun, to only a couple of times smaller. Because of their small size these stars burn their fuel very slowly, which allows them to live a very long time. Some red dwarf stars will live trillions of years before they run out of fu ...
... Red Dwarf stars can range in size from a hundred times smaller than the sun, to only a couple of times smaller. Because of their small size these stars burn their fuel very slowly, which allows them to live a very long time. Some red dwarf stars will live trillions of years before they run out of fu ...