Garden-Variety Star - Wayne State University Physics and Astronomy
... The temperature drops from 10 million K at the inner side of the radiative zone to 2 million K at its edge The energy generated in the core is carried by photons that bounce from particle to particle through the radiative zone The photons are too energetic to be absorbed by atoms Each photon bounces ...
... The temperature drops from 10 million K at the inner side of the radiative zone to 2 million K at its edge The energy generated in the core is carried by photons that bounce from particle to particle through the radiative zone The photons are too energetic to be absorbed by atoms Each photon bounces ...
Formation of the Sun and Planets
... The most widely accepted explanation of how the solar system formed is called the nebular hypothesis. According to this hypothesis, the Sun and the planets of our solar system formed about 4.6 billion years ago from the collapse of a giant cloud of gas and dust, called a nebula. The nebula was drawn ...
... The most widely accepted explanation of how the solar system formed is called the nebular hypothesis. According to this hypothesis, the Sun and the planets of our solar system formed about 4.6 billion years ago from the collapse of a giant cloud of gas and dust, called a nebula. The nebula was drawn ...
Fermi Gases
... • But also have filled energy levels and need to give enough energy to p/n so that there is an unfilled state available. Simplest to say “above” Fermi Energy • similar effect in solids. Superconductivity mostly involves electrons at the “top” of the Fermi well ...
... • But also have filled energy levels and need to give enough energy to p/n so that there is an unfilled state available. Simplest to say “above” Fermi Energy • similar effect in solids. Superconductivity mostly involves electrons at the “top” of the Fermi well ...
Grade 9 Botony: plant nutrition
... About a century ago, explorers discovered two golden birds among the ancient ruins of Great Zimbabwe. The birds were discovered in the remains of a building which may have been the sun-temple of the ancient Shona people of Zimbabwe. A myth of the Shona people relates that the sunbirds belonged origi ...
... About a century ago, explorers discovered two golden birds among the ancient ruins of Great Zimbabwe. The birds were discovered in the remains of a building which may have been the sun-temple of the ancient Shona people of Zimbabwe. A myth of the Shona people relates that the sunbirds belonged origi ...
File 3rd quarter review
... Changing Seasons ands Constellations is evidence that the Earth __________. The Earth is closer to the sun during the __________ season. Preihelion – earth is __________to the sun. Aphelion – earth is __________ to the sun. The closer a planet is to the sun, the _____________ its velocity as its orb ...
... Changing Seasons ands Constellations is evidence that the Earth __________. The Earth is closer to the sun during the __________ season. Preihelion – earth is __________to the sun. Aphelion – earth is __________ to the sun. The closer a planet is to the sun, the _____________ its velocity as its orb ...
Grade 3: Solar System
... • Teacher will assign individual or small groups of students to be a specific planet, or the sun within the solar system. • Each group or student will be given a ball of string, four planet marker cards, and a planet information card that tells them the length of string they should cut which will re ...
... • Teacher will assign individual or small groups of students to be a specific planet, or the sun within the solar system. • Each group or student will be given a ball of string, four planet marker cards, and a planet information card that tells them the length of string they should cut which will re ...
AST443_1
... knows the intrinsic motions of a moving object, one can then extrapolate to predict the position at other epochs. – the equinox of the coordinates, which makes the RA and DEC of a stationary object change with time. One reduces the measured position to a standard equinox (e.g., B1950 or J2000), esse ...
... knows the intrinsic motions of a moving object, one can then extrapolate to predict the position at other epochs. – the equinox of the coordinates, which makes the RA and DEC of a stationary object change with time. One reduces the measured position to a standard equinox (e.g., B1950 or J2000), esse ...
The star is moving away from earth
... As time goes on, what will happen to the ratio of Hydrogen to Helium in this star? ...
... As time goes on, what will happen to the ratio of Hydrogen to Helium in this star? ...
PHYS1002: Founda^ons of Astronomy
... – Add 12h+24hxN/365.25 = Q Because the sky completes one rota0on due to the Earth’s orbit during the course of one year. – Calculate how many hours before midnight you were born = M – Subtra ...
... – Add 12h+24hxN/365.25 = Q Because the sky completes one rota0on due to the Earth’s orbit during the course of one year. – Calculate how many hours before midnight you were born = M – Subtra ...
Origin of the Universe
... – Protons and neutrons come together to form the nuclei of simple elements: hydrogen (1 proton), helium (2 protons) and lithium (3 protons) (1, 2 and 3 in periodic table). It will take another 300,000 years for electrons to be captured into orbits around these nuclei to form stable atoms. ...
... – Protons and neutrons come together to form the nuclei of simple elements: hydrogen (1 proton), helium (2 protons) and lithium (3 protons) (1, 2 and 3 in periodic table). It will take another 300,000 years for electrons to be captured into orbits around these nuclei to form stable atoms. ...
old Astro-211 exam 2 (pdf format)
... 15. Our planetary system (together with the Sun) formed about 4 21 billion years ago from a small part of a giant molecular cloud. 16. Homo-nuclear diatomic molecules like N2 do not contribute to the greenhouse effect. Give a short explanation (5 pts each) 17. Report three types of energy. What does ...
... 15. Our planetary system (together with the Sun) formed about 4 21 billion years ago from a small part of a giant molecular cloud. 16. Homo-nuclear diatomic molecules like N2 do not contribute to the greenhouse effect. Give a short explanation (5 pts each) 17. Report three types of energy. What does ...
Class Project Physics 1010-042, Physics 1010
... Tcold = the temperature of the environment surrounding the heat engine Thot = the internal operating temperature of the engine This is the equation for the efficiency of a heat engine (your car is a heat engine unless you have an electric model). An e = 1 is 100% efficiency, meaning 100% of the ener ...
... Tcold = the temperature of the environment surrounding the heat engine Thot = the internal operating temperature of the engine This is the equation for the efficiency of a heat engine (your car is a heat engine unless you have an electric model). An e = 1 is 100% efficiency, meaning 100% of the ener ...
Evolved Massive Stars - University of Arizona
... • Wind driven by continuum opacity instead of line opacity • Photosphere lies in optically thick wind ...
... • Wind driven by continuum opacity instead of line opacity • Photosphere lies in optically thick wind ...
Document
... a. Halted by degeneracy pressure in the core. b. Halted when the atoms are pushed up against one another and contraction stops. c. Finally balanced by outward thermal pressure from nuclear reactions. d. Finally balanced by radiation emitted in the photosphere. e. none of the above. ...
... a. Halted by degeneracy pressure in the core. b. Halted when the atoms are pushed up against one another and contraction stops. c. Finally balanced by outward thermal pressure from nuclear reactions. d. Finally balanced by radiation emitted in the photosphere. e. none of the above. ...
the formation of the earth
... 5 light green felt circles with a diameter of 5” representing Oxygen 4 dark green felt circles with a diameter of 4” representing Neon 3 light blue felt circles with a diameter of 3” representing Magnesium 2 light purple felt circles with a diameter of 2” representing Silicon 1 dark purple felt circ ...
... 5 light green felt circles with a diameter of 5” representing Oxygen 4 dark green felt circles with a diameter of 4” representing Neon 3 light blue felt circles with a diameter of 3” representing Magnesium 2 light purple felt circles with a diameter of 2” representing Silicon 1 dark purple felt circ ...
Luminosity and brightness
... Luminosity and brightness Luminosity Luminosity is a measure of the total energy given output by a star at all wavelengths form gamma radiation to radio waves. For example the Sun gives out about 500 million million million MJ of energy every second so its luminosity is 500 million million million M ...
... Luminosity and brightness Luminosity Luminosity is a measure of the total energy given output by a star at all wavelengths form gamma radiation to radio waves. For example the Sun gives out about 500 million million million MJ of energy every second so its luminosity is 500 million million million M ...
File
... Rotation on it’s axis: 10.7 hours Temperature: average temperature of minus 288 degrees Fahrenheit (minus 178 degrees Celsius) http://www.space.com/18473-saturn-temperature.html Moon: at least 17 moons Composition: Saturn is predominantly composed of hydrogen and helium, the two basic gases of the u ...
... Rotation on it’s axis: 10.7 hours Temperature: average temperature of minus 288 degrees Fahrenheit (minus 178 degrees Celsius) http://www.space.com/18473-saturn-temperature.html Moon: at least 17 moons Composition: Saturn is predominantly composed of hydrogen and helium, the two basic gases of the u ...
