LT 9: I can describe how a protostar becomes a star.
... Temperature rises making the outer shell of the star super expand The surface temperature drops and it is now a huge, bright, red aging star ...
... Temperature rises making the outer shell of the star super expand The surface temperature drops and it is now a huge, bright, red aging star ...
FSA school wide Science Olympiad 12/8/2007
... A. Messier objects: astronomical objects catalogued by Charles Messier 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 ti ...
... A. Messier objects: astronomical objects catalogued by Charles Messier 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 ti ...
File - Mr. Goodyear Astronomy
... Step 5 Helium Flash / Red Giant – as hydrogen in core of star decreases and helium in core rises, the star starts to become unstable and equilibrium breaks down, gravity takes over – causing greater pressure on core and causes helium flash or fusion (new energy He C ) Star grows: increase energy ov ...
... Step 5 Helium Flash / Red Giant – as hydrogen in core of star decreases and helium in core rises, the star starts to become unstable and equilibrium breaks down, gravity takes over – causing greater pressure on core and causes helium flash or fusion (new energy He C ) Star grows: increase energy ov ...
ASTRONOMY
... E. Fill in the blank. 1. There are about __________ stars you can see at night. 2. Latitudes on earth are like ____________ in space. 3. There are about ________ constellations. 4. The north-star has a magnitude of _____________. 5. The point directly overhead is called the ______________. 6. Polar ...
... E. Fill in the blank. 1. There are about __________ stars you can see at night. 2. Latitudes on earth are like ____________ in space. 3. There are about ________ constellations. 4. The north-star has a magnitude of _____________. 5. The point directly overhead is called the ______________. 6. Polar ...
ppt
... • From there we can calculate how much further away the star must be than the Sun to make it the brightness we see from Earth • Delta Cephei shows has a period of about 5 days • This is a reasonably bright star in the constellation of Cepheus • Cepheids are in other galaxies also, and used similarly ...
... • From there we can calculate how much further away the star must be than the Sun to make it the brightness we see from Earth • Delta Cephei shows has a period of about 5 days • This is a reasonably bright star in the constellation of Cepheus • Cepheids are in other galaxies also, and used similarly ...
Stars
... Stars have different sizes. White dwarf stars are about the size of Earth. Supergiant stars can be wider than 300 million miles. That is more than one thousand times the distance from Earth to the Moon. Stars can be different colors such as blue, yellow, orange, red, white, and black. ...
... Stars have different sizes. White dwarf stars are about the size of Earth. Supergiant stars can be wider than 300 million miles. That is more than one thousand times the distance from Earth to the Moon. Stars can be different colors such as blue, yellow, orange, red, white, and black. ...
Notes- Stars
... Life Cycle of Stars • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the univ ...
... Life Cycle of Stars • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the univ ...
Stellar Magnitude, Distance, and Motion
... How bright a star appears; the "what you see is what you get" magnitude Convolution of the true brightness and the effect of distance on the observed brightness Every 5th magnitude is 100 times brighter than the one before o A 1st magnitude star is 100 times brighter than a 6th magnitude star ...
... How bright a star appears; the "what you see is what you get" magnitude Convolution of the true brightness and the effect of distance on the observed brightness Every 5th magnitude is 100 times brighter than the one before o A 1st magnitude star is 100 times brighter than a 6th magnitude star ...
Astronomers classify stars according to their physical characteristics
... •A star’s _apparent_ brightness depends upon how bright it _actually is and its _distance_ from Earth. •A star’s actual brightness (or _absolute magnitude) usually depends on the star’s _size_ and temperature__. •Because stars with _more mass ___ have more __self _gravity, they tend to have _higher_ ...
... •A star’s _apparent_ brightness depends upon how bright it _actually is and its _distance_ from Earth. •A star’s actual brightness (or _absolute magnitude) usually depends on the star’s _size_ and temperature__. •Because stars with _more mass ___ have more __self _gravity, they tend to have _higher_ ...
Sun and Stars
... The closest star to Earth; the Sun The Sun contains more than 99.8% of the total mass of the Solar System. The sun is also the largest star in the solar system. We know this star as “The Sun”, though in the past, the Greeks have called it “Helios”, and the Romans have called it “Sol”. Around 40.5 b ...
... The closest star to Earth; the Sun The Sun contains more than 99.8% of the total mass of the Solar System. The sun is also the largest star in the solar system. We know this star as “The Sun”, though in the past, the Greeks have called it “Helios”, and the Romans have called it “Sol”. Around 40.5 b ...
AN INTRODUCTION TO ASTRONOMY Dr. Uri Griv Department of Physics, Ben-Gurion University
... • Strictly speaking: L = (4πR2 )(σT 4 ) where R is the radius of a star. On the other hand, L = f · (4πr2 ) → T = (f r2 /R2 σ)1/4 • The basic idea of UBV Photometry is to measure the proportions of radiant energy put out by a thermal body at ultraviolet (U), blue (B), and visual (V) wavelength • fV ...
... • Strictly speaking: L = (4πR2 )(σT 4 ) where R is the radius of a star. On the other hand, L = f · (4πr2 ) → T = (f r2 /R2 σ)1/4 • The basic idea of UBV Photometry is to measure the proportions of radiant energy put out by a thermal body at ultraviolet (U), blue (B), and visual (V) wavelength • fV ...
Chapter 1 Vocabulary – The Puzzled of Matter
... Black Hole – an object whose surface gravity is so great that no even electromagnetic waves can escape from it Constellation – a group of stars that appears to from a pattern as seen from Earth Star System – a group of two or more stars held together by gravity Binary Star – a star system with two s ...
... Black Hole – an object whose surface gravity is so great that no even electromagnetic waves can escape from it Constellation – a group of stars that appears to from a pattern as seen from Earth Star System – a group of two or more stars held together by gravity Binary Star – a star system with two s ...
Name: Period : ______ The Universe – Life and Death of a Star How
... than ___________ degrees F, and are the most _________________ type of star. 16. Why don’t we see red dwarves in the night sky? 17. Blue main sequence stars have surface temperatures of ____________________ degrees F, can be _______ times more massive than the Sun, and _____________________ times mo ...
... than ___________ degrees F, and are the most _________________ type of star. 16. Why don’t we see red dwarves in the night sky? 17. Blue main sequence stars have surface temperatures of ____________________ degrees F, can be _______ times more massive than the Sun, and _____________________ times mo ...
The Hertzsprung – Russell Diagram
... The Hertzsprung – Russell Diagram Background Information: For astronomers, a graph that displays a star’s luminosity on the y-axis and its surface temperature on the x-axis sets up an extremely useful diagram called a Hertzsprung-Russell, or H-R Diagram. In 1910 Ejnar Hertzsprung and Henry Norris Ru ...
... The Hertzsprung – Russell Diagram Background Information: For astronomers, a graph that displays a star’s luminosity on the y-axis and its surface temperature on the x-axis sets up an extremely useful diagram called a Hertzsprung-Russell, or H-R Diagram. In 1910 Ejnar Hertzsprung and Henry Norris Ru ...
Problem set 2
... specific intensity), you do not need to know the distance or luminosity, but only the temperature and angle subtended! Both of these are direct observables, unlike distance and luminosity . . . (c) Show that the answer to the previous part is the same as you would get by the more obvious but unneces ...
... specific intensity), you do not need to know the distance or luminosity, but only the temperature and angle subtended! Both of these are direct observables, unlike distance and luminosity . . . (c) Show that the answer to the previous part is the same as you would get by the more obvious but unneces ...
An Assessment: Think Pair Share
... The cosmic background radiation is visible in all directions at a temperature of 3 degrees absolute zero. Almost every galaxy has a red-shift, with more distant galaxies having the highest red-shift. The closest galaxies are all blue-shifted, showing that our universe is slowing down. ...
... The cosmic background radiation is visible in all directions at a temperature of 3 degrees absolute zero. Almost every galaxy has a red-shift, with more distant galaxies having the highest red-shift. The closest galaxies are all blue-shifted, showing that our universe is slowing down. ...
Astronomy 2 Relativity and Gravitation
... What is meant by the term ‘luminosity indicator’? Explain the difference between a positive and a negative luminosity indicator. A luminosity indicator is a property (e.g. width, depth) of a spectral feature (e.g. a line or a group of lines) which varies with the star’s luminosity, within a single s ...
... What is meant by the term ‘luminosity indicator’? Explain the difference between a positive and a negative luminosity indicator. A luminosity indicator is a property (e.g. width, depth) of a spectral feature (e.g. a line or a group of lines) which varies with the star’s luminosity, within a single s ...
Chapter 13 Notes – The Deaths of Stars
... Stars with less than __________ solar masses are completely convective. Hydrogen and helium remain well _______________ throughout the entire star No phase of _____________ burning with expansion to ______________ Not hot enough to ignite ____________ burning III. Sunlike stars 0.4 to ____ ...
... Stars with less than __________ solar masses are completely convective. Hydrogen and helium remain well _______________ throughout the entire star No phase of _____________ burning with expansion to ______________ Not hot enough to ignite ____________ burning III. Sunlike stars 0.4 to ____ ...