answers2006_07_BC
... this is surprising because different “sides” of the sky should never have exchanged photons, and therefore do not know each other’s temperature – it is one of the key pieces of evidence for inflation very small temperature fluctuations (1 in 100000) by studying these we can show that the universe is ...
... this is surprising because different “sides” of the sky should never have exchanged photons, and therefore do not know each other’s temperature – it is one of the key pieces of evidence for inflation very small temperature fluctuations (1 in 100000) by studying these we can show that the universe is ...
ppt
... its rays to arrive at us; it is therefore possible that the largest luminous bodies in the universe may, through this cause, be ...
... its rays to arrive at us; it is therefore possible that the largest luminous bodies in the universe may, through this cause, be ...
Questions for this book (Word format)
... Copying directly from the book is illegal (plagiarism) and will be penalised. 1. When Eddington suggested in 1926 that stars were powered by hydrogen fusion, why did most physicists quite reasonably reject this suggestion? Explain the phenomenon, unknown in 1926, that allows hydrogen fusion to occur ...
... Copying directly from the book is illegal (plagiarism) and will be penalised. 1. When Eddington suggested in 1926 that stars were powered by hydrogen fusion, why did most physicists quite reasonably reject this suggestion? Explain the phenomenon, unknown in 1926, that allows hydrogen fusion to occur ...
chapter10
... The Final Breaths of Sun-Like Stars: Planetary Nebulae Remnants of stars with ~ 1 – a few Msun Radii: R ~ 0.2 - 3 light years Expanding at ~10 – 20 km/s ( Doppler shifts) Less than 10,000 years old ...
... The Final Breaths of Sun-Like Stars: Planetary Nebulae Remnants of stars with ~ 1 – a few Msun Radii: R ~ 0.2 - 3 light years Expanding at ~10 – 20 km/s ( Doppler shifts) Less than 10,000 years old ...
Stars
... It is more massive and brighter than about 85% of the stars. That’s because the most common stars are red dwarfs, which are small dim stars. Most of the stars we can see in the night sky, however, are brighter and larger that the sun. Because they are so far away, they must be large and brig ...
... It is more massive and brighter than about 85% of the stars. That’s because the most common stars are red dwarfs, which are small dim stars. Most of the stars we can see in the night sky, however, are brighter and larger that the sun. Because they are so far away, they must be large and brig ...
The Reflector: January 2010 - Peterborough Astronomical Association
... dwarf either of the two galaxies as they currently exist. The galactic intermingling would also result in a lot of new star formation as the huge clouds of hydrogen gas and dust within the galaxies clump together to eventually birth new stars. But that’s just one conclusion. The Milky Way could wind ...
... dwarf either of the two galaxies as they currently exist. The galactic intermingling would also result in a lot of new star formation as the huge clouds of hydrogen gas and dust within the galaxies clump together to eventually birth new stars. But that’s just one conclusion. The Milky Way could wind ...
1 -11 are Homework Questions for after Day 2
... size and shape. The stars that make up a constellation are not, for the most part, physically related. The constellations are just patterns that our ancestors saw as they gazed skyward and tried to make sense of it all. Today’s constellations are specific to ancient Greek culture. Most of them were ...
... size and shape. The stars that make up a constellation are not, for the most part, physically related. The constellations are just patterns that our ancestors saw as they gazed skyward and tried to make sense of it all. Today’s constellations are specific to ancient Greek culture. Most of them were ...
Which object is closest to Earth
... Name: _____________________________ 1) ____ Evidence that the universe is expanding is best provided by the a) red shift in the light from distant galaxies b) change in the swing direction of a Foucault pendulum on Earth c) parallelism of Earth’s axis in orbit d) spiral shape of the Milky Way Galaxy ...
... Name: _____________________________ 1) ____ Evidence that the universe is expanding is best provided by the a) red shift in the light from distant galaxies b) change in the swing direction of a Foucault pendulum on Earth c) parallelism of Earth’s axis in orbit d) spiral shape of the Milky Way Galaxy ...
THE CHANGING SKY
... screen (if you cannot see the blue dot, you may have to enlarge the screen). This will give you the “Earth-centered” view, flattening your horizon (you may also do this by SLOWLY clicking on the arrow at the bottom ( 5 ), with the left mouse button until the horizon looks flat. ** On the top border ...
... screen (if you cannot see the blue dot, you may have to enlarge the screen). This will give you the “Earth-centered” view, flattening your horizon (you may also do this by SLOWLY clicking on the arrow at the bottom ( 5 ), with the left mouse button until the horizon looks flat. ** On the top border ...
Star Life Cycles WS
... 5. A red giant is (hotter, cooler) due the (contraction, expansion) of gases in the outer layer. 6. At the end of its life, a low mass star (1.4 SM) shrinks to become a ______________. 7. At the end, a very MASSIVE star will follow sequence: a. white dwarf, planetary nebula, neutron star b. red gian ...
... 5. A red giant is (hotter, cooler) due the (contraction, expansion) of gases in the outer layer. 6. At the end of its life, a low mass star (1.4 SM) shrinks to become a ______________. 7. At the end, a very MASSIVE star will follow sequence: a. white dwarf, planetary nebula, neutron star b. red gian ...
Chapter 15 (Star Lives)
... 1. Explain in terms of its role in stellar evolution why iron is much more common than any other heavy element. 2. With one exception, which are more common on the periodic table, odd or even numbered elements? Relate this to the red giant stage of stellar evolution. 3. If practically every star mus ...
... 1. Explain in terms of its role in stellar evolution why iron is much more common than any other heavy element. 2. With one exception, which are more common on the periodic table, odd or even numbered elements? Relate this to the red giant stage of stellar evolution. 3. If practically every star mus ...
September
... Monthly average temperature for Sept. = 68 deg. F. Monthly average rainfall is 3.1 inches. Average number of Thunderstorms are 3. Interesting Features: Lagoon Nebula, a cloud of gas and dust, material of which stars are forming can be seen south-southwest near the "spout of the teapot" (Sagittarius) ...
... Monthly average temperature for Sept. = 68 deg. F. Monthly average rainfall is 3.1 inches. Average number of Thunderstorms are 3. Interesting Features: Lagoon Nebula, a cloud of gas and dust, material of which stars are forming can be seen south-southwest near the "spout of the teapot" (Sagittarius) ...
Study Guide: Unit 1, The Universe and its Stars, HS
... C) solar winds D) milky way galaxies E) plages 14) HS-ESS1-2 One of the most common units used to express stellar distance is the ________. A) light-year B) kilometer C) mile D) meter 15) HS-ESS1-2 The measure of a star's brightness is called its ________. A) intensity B) color C) magnitude D) paral ...
... C) solar winds D) milky way galaxies E) plages 14) HS-ESS1-2 One of the most common units used to express stellar distance is the ________. A) light-year B) kilometer C) mile D) meter 15) HS-ESS1-2 The measure of a star's brightness is called its ________. A) intensity B) color C) magnitude D) paral ...
May 8, 2012 - Plummer Pumas Science
... The Sun’s temperature was much hotter and it was much larger. __________________________________________________________________________________________________ __________________________________________________________________________________________________ ________________________________________ ...
... The Sun’s temperature was much hotter and it was much larger. __________________________________________________________________________________________________ __________________________________________________________________________________________________ ________________________________________ ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.