The Sun: Our Extraordinary Ordinary Star
... • Earth has existed in its present condition for at least hundreds of million years. • If sun were burning coal or hydrogen gas would burn for only 5000 years. • So energy from the sun does not come from normal combustion. • 1905 Einstein • E= mc2 c= 3.00 x 108 m/s ...
... • Earth has existed in its present condition for at least hundreds of million years. • If sun were burning coal or hydrogen gas would burn for only 5000 years. • So energy from the sun does not come from normal combustion. • 1905 Einstein • E= mc2 c= 3.00 x 108 m/s ...
Document
... TO THE EAST RELATIVE TO THE STARS about 1 degree per day. • The Sun’s path in the sky is called the ecliptic; the constellations along the ecliptic are the Zodiac. • The Sun completes a circuit along the entire ecliptic (through all the Zodiacal constellations) in ONE YEAR • Due to Earth orbiting th ...
... TO THE EAST RELATIVE TO THE STARS about 1 degree per day. • The Sun’s path in the sky is called the ecliptic; the constellations along the ecliptic are the Zodiac. • The Sun completes a circuit along the entire ecliptic (through all the Zodiacal constellations) in ONE YEAR • Due to Earth orbiting th ...
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... The space between the stars is filled with dusty gas. Thick dust clouds can even be seen with the naked eye within the Milky Way blocking the light of distant stars and providing much of the Milky Way's structure. Interstellar matter is compressed by the Galaxy's winding spiral arms. The clouds can ...
... The space between the stars is filled with dusty gas. Thick dust clouds can even be seen with the naked eye within the Milky Way blocking the light of distant stars and providing much of the Milky Way's structure. Interstellar matter is compressed by the Galaxy's winding spiral arms. The clouds can ...
Sample exam 2
... 11. The Sun started off its trajectory on the Hertzsprung-Russell diagram by initially moving down and to the left as it organized into a protostar. Explain this behavior in terms of temperature and luminosity, and give a reason for this behavior, given what we know about stars. 12. What are the con ...
... 11. The Sun started off its trajectory on the Hertzsprung-Russell diagram by initially moving down and to the left as it organized into a protostar. Explain this behavior in terms of temperature and luminosity, and give a reason for this behavior, given what we know about stars. 12. What are the con ...
Unit 14_EOC Review_4_24_Space Exploration
... The Sun’s powerful gravity holds all This law explains the formation of the of the objects listed in their orbits. Solar system and orbital movement of objects around the Sun. Historical models eventually built up to this idea. The surface would be rocky on a terrestrial planet and gaseous on a gas ...
... The Sun’s powerful gravity holds all This law explains the formation of the of the objects listed in their orbits. Solar system and orbital movement of objects around the Sun. Historical models eventually built up to this idea. The surface would be rocky on a terrestrial planet and gaseous on a gas ...
6.1 Sun - TeacherWeb
... The sun has 3 layers of gas The core o Is the center of the sun. o produces most of the sun’s energy o has temperatures of 10 million to 20 million degrees Celsius. o It’s pressure is 1 billion times greater than the air pressure on Earth. The radiation layer o is the inner layer. o moves the en ...
... The sun has 3 layers of gas The core o Is the center of the sun. o produces most of the sun’s energy o has temperatures of 10 million to 20 million degrees Celsius. o It’s pressure is 1 billion times greater than the air pressure on Earth. The radiation layer o is the inner layer. o moves the en ...
Astronomy Test
... b) The closer a planet is to the sun, the slower it moves in its orbit. c) The time it takes a planet to make one revolution around the sun is proportional to the distance that planet is away from the Sun. d) The galaxies are getting bigger. 18. What lies at the center of our solar system? a) Mercur ...
... b) The closer a planet is to the sun, the slower it moves in its orbit. c) The time it takes a planet to make one revolution around the sun is proportional to the distance that planet is away from the Sun. d) The galaxies are getting bigger. 18. What lies at the center of our solar system? a) Mercur ...
Four Homework Assignments
... where N is the number density of the gas particles in the star, T is the local temeperature, kB is Boltzmann’s constant, and V is the volume, derive an approximate formula for the average temperature for such a star. Note that we are using the ideal gas law for the matter equation of state. Assuming ...
... where N is the number density of the gas particles in the star, T is the local temeperature, kB is Boltzmann’s constant, and V is the volume, derive an approximate formula for the average temperature for such a star. Note that we are using the ideal gas law for the matter equation of state. Assuming ...
Integrative Studies 410 Our Place in the Universe
... • Main-sequence star; pressure from nuclear fusion and gravity are in balance – Duration ~ 10 billion years (much longer than all other stages combined) – Temperature ~ 15 million K at core, 6000 K at surface – Size ~ Sun ...
... • Main-sequence star; pressure from nuclear fusion and gravity are in balance – Duration ~ 10 billion years (much longer than all other stages combined) – Temperature ~ 15 million K at core, 6000 K at surface – Size ~ Sun ...
june 2011 - Holt Planetarium
... doldrums, again. Despite all the incredible solar flare action we've seen in recent months as our nearest star ramps up toward solar maximum, which is expected to occur in 2013, scientists are predicting the next solar cycle (Cycle 25) will be notable in that it might not even happen. Researchers fr ...
... doldrums, again. Despite all the incredible solar flare action we've seen in recent months as our nearest star ramps up toward solar maximum, which is expected to occur in 2013, scientists are predicting the next solar cycle (Cycle 25) will be notable in that it might not even happen. Researchers fr ...
june 2011 - Holt Planetarium
... doldrums, again. Despite all the incredible solar flare action we've seen in recent months as our nearest star ramps up toward solar maximum, which is expected to occur in 2013, scientists are predicting the next solar cycle (Cycle 25) will be notable in that it might not even happen. Researchers fr ...
... doldrums, again. Despite all the incredible solar flare action we've seen in recent months as our nearest star ramps up toward solar maximum, which is expected to occur in 2013, scientists are predicting the next solar cycle (Cycle 25) will be notable in that it might not even happen. Researchers fr ...
AnwerkeyTypes-of-stars-and-HR-diagram
... and Luminosity is measured using Brightness and Distance Answer the following using H-R diagram: 1. Surface Temperature of sun: __5500 degree celcius______________________ ...
... and Luminosity is measured using Brightness and Distance Answer the following using H-R diagram: 1. Surface Temperature of sun: __5500 degree celcius______________________ ...
Facts - GreenSpirit
... Under the enormous pressure, the elements dissolve, neutrinos flood out leaving no energy at the centre of the star. ...
... Under the enormous pressure, the elements dissolve, neutrinos flood out leaving no energy at the centre of the star. ...
Document
... Photosphere -- light sphere The surface in “visible” light T ~ 6500 - 4000 K Depth 100’s kms ...
... Photosphere -- light sphere The surface in “visible” light T ~ 6500 - 4000 K Depth 100’s kms ...
Bell Ringer
... Largest planet, its volume can hold more than 900 Earths. One rotation is just under 10 hours and its gravity is 253 times more than Earths. Fast winds at 540 km/h and clouds that stretch in bands from east to west. More than 60 moons, Europa has evidence of liquid water possibly beneath the ...
... Largest planet, its volume can hold more than 900 Earths. One rotation is just under 10 hours and its gravity is 253 times more than Earths. Fast winds at 540 km/h and clouds that stretch in bands from east to west. More than 60 moons, Europa has evidence of liquid water possibly beneath the ...
Chapter 11
... 3. In nuclear fusion, two nuclei combine to form a larger nucleus, releasing energy in the process. In the Sun, 4 hydrogen nuclei are fused to form 1 helium nucleus and energy. 4. The fusion process in the Sun converts only 0.7% of the original mass into energy. 5. To produce the Sun’s energy output ...
... 3. In nuclear fusion, two nuclei combine to form a larger nucleus, releasing energy in the process. In the Sun, 4 hydrogen nuclei are fused to form 1 helium nucleus and energy. 4. The fusion process in the Sun converts only 0.7% of the original mass into energy. 5. To produce the Sun’s energy output ...
23sun6s
... What could power the Sun for this length of time? Chemical energy (burning) -Kelvin-Helmholtz contraction (gravitational energy) -Nuclear Fusion Reactions -- ...
... What could power the Sun for this length of time? Chemical energy (burning) -Kelvin-Helmholtz contraction (gravitational energy) -Nuclear Fusion Reactions -- ...
The Sun
... elements. 3. Nuclear fission of hydrogen. 4. Nuclear fission of heavier elements into hydrogen. 5. Nuclear fission of heavier elements into elements heavier than hydrogen. ...
... elements. 3. Nuclear fission of hydrogen. 4. Nuclear fission of heavier elements into hydrogen. 5. Nuclear fission of heavier elements into elements heavier than hydrogen. ...
History of Astronomy – Modeling the Solar System Early Studies
... uses ellipses instead of circles for orbits of the planets. ...
... uses ellipses instead of circles for orbits of the planets. ...