PH109 Exploring the Universe, Test 3, Fall 2001 Please indicate the
... 33. A measurement of the parallax of a star allows us directly to determine the star's a) rotation rate, b) temperature, c) distance, d) age 34. The stars located in the lower left corner of the HR diagram are a) white dwarfs, b) main sequence stars, c) giants, d) supergiants 35. The four hydrogen n ...
... 33. A measurement of the parallax of a star allows us directly to determine the star's a) rotation rate, b) temperature, c) distance, d) age 34. The stars located in the lower left corner of the HR diagram are a) white dwarfs, b) main sequence stars, c) giants, d) supergiants 35. The four hydrogen n ...
Ejecta from neutron star mergers and the role of
... IKP-Theorie, TU-Darmstadt, Darmstadt, Germany ...
... IKP-Theorie, TU-Darmstadt, Darmstadt, Germany ...
Star in a Box Worksheet - Beginning with solutions
... ✰ Launch Star in a Box and open the lid. The main plot is a Hertzsprung-Russell diagram. On the right, the information panel allows comparisons between the radius, surface temperature, luminosity and mass of the star relative to the Sun.The starting parameters are for a star like the Sun. ...
... ✰ Launch Star in a Box and open the lid. The main plot is a Hertzsprung-Russell diagram. On the right, the information panel allows comparisons between the radius, surface temperature, luminosity and mass of the star relative to the Sun.The starting parameters are for a star like the Sun. ...
Spiral Elliptical Irregular - SMS 8th Grade Astronomy Unit
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
The Observed Properties of Stars
... to compute an accurate model of its interior? A. Chemical composition B. Luminosity C. Mass D. Diameter E. We needed to know all of the above ...
... to compute an accurate model of its interior? A. Chemical composition B. Luminosity C. Mass D. Diameter E. We needed to know all of the above ...
Science Journals * 3-18-13
... and that the Sun is many thousands of times closer to the earth than any other star. ...
... and that the Sun is many thousands of times closer to the earth than any other star. ...
The Sun
... “Proton-Proton Chain” does most fusion, which is effective at lower temperatures (<15 million K) • For higher mass, higher core temperature stars, another more complex reaction – the CNO cycle - involving again a net of 4H going into 1 He4, but involving carbon, nitrogen and oxygen in intermediate s ...
... “Proton-Proton Chain” does most fusion, which is effective at lower temperatures (<15 million K) • For higher mass, higher core temperature stars, another more complex reaction – the CNO cycle - involving again a net of 4H going into 1 He4, but involving carbon, nitrogen and oxygen in intermediate s ...
Lesson 6 The Sun and its power source
... The splitting of heavy atomic nuclei into smaller, lighter atomic nuclei ...
... The splitting of heavy atomic nuclei into smaller, lighter atomic nuclei ...
The Stars - Department of Physics and Astronomy
... More On Solar Structure • Hydrogen fusion takes place in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
... More On Solar Structure • Hydrogen fusion takes place in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
The Sunspot Cycle
... • Luminosity = Energy/unit time • But we measure flux incident on Earth (apparent brightness) = Energy/unit time /unit area Also must know distance r ...
... • Luminosity = Energy/unit time • But we measure flux incident on Earth (apparent brightness) = Energy/unit time /unit area Also must know distance r ...
Our Solar System
... • Smaller than 7 of the solar system’s moons. • Sometimes crosses the orbit of Neptune, making Neptune the most distant planet from the Sun for a few ...
... • Smaller than 7 of the solar system’s moons. • Sometimes crosses the orbit of Neptune, making Neptune the most distant planet from the Sun for a few ...
Our Star, the Sun
... (the proton-proton cycle) Antimatter – Antineutron, antielectron, and antiproton o When a proton, neutron or electron meets it’s anti, they destroy one another and become pure energy Quantum mechanics revealed Heisenberg’s Uncertainty Principal which says you cannot know where both an object is and ...
... (the proton-proton cycle) Antimatter – Antineutron, antielectron, and antiproton o When a proton, neutron or electron meets it’s anti, they destroy one another and become pure energy Quantum mechanics revealed Heisenberg’s Uncertainty Principal which says you cannot know where both an object is and ...
The Solar System
... revolution is directly related to a planet’s distance from the sun. As distance decreases, the period of revolution decreases. Therefore, a year length is different for each planet. In addition, planets also rotate on their axis at different speeds. A planets length of day and night is related to it ...
... revolution is directly related to a planet’s distance from the sun. As distance decreases, the period of revolution decreases. Therefore, a year length is different for each planet. In addition, planets also rotate on their axis at different speeds. A planets length of day and night is related to it ...
Stellar Interiors - Hydrostatic Equilibrium and Ignition on the Main
... • Low-mass stars: pp chain has T4 dependence, which is weak enough such that radiation can carry away the energy • High-mass stars: CNO cycle has T20 dependence, meaning much more energy produced closer to core than right above it, resulting in convection http://burro.astr.cwru.edu/Academics/Astr221 ...
... • Low-mass stars: pp chain has T4 dependence, which is weak enough such that radiation can carry away the energy • High-mass stars: CNO cycle has T20 dependence, meaning much more energy produced closer to core than right above it, resulting in convection http://burro.astr.cwru.edu/Academics/Astr221 ...
Astronomy Unit Notes - sciencepowerpoint.com
... Galaxy – Large group of stars, gas, and dust that constitute the universe. By a large group, we mean hundreds of billions. The Big Bang Theory - The cosmic explosion that is hypothesized to have marked the origin of the universe. Dark Matter – A hypothetical form of matter that is believed to make u ...
... Galaxy – Large group of stars, gas, and dust that constitute the universe. By a large group, we mean hundreds of billions. The Big Bang Theory - The cosmic explosion that is hypothesized to have marked the origin of the universe. Dark Matter – A hypothetical form of matter that is believed to make u ...