Special Relativity:
... of light towards and away from a star was thought to be: V = c + v where v equals 29 km/s, and c = 300,000 km/s. MM felt they could detect this difference. ...
... of light towards and away from a star was thought to be: V = c + v where v equals 29 km/s, and c = 300,000 km/s. MM felt they could detect this difference. ...
Lab Document - University of Iowa Astronomy and Astrophysics
... stars. They contain some of the oldest stars in the universe, which formed billions of years before the Sun. The distance to M13 is 21,000 light years. The light you are seeing tonight was emitted by those stars many thousands of years before any civilizations existed on Earth. ...
... stars. They contain some of the oldest stars in the universe, which formed billions of years before the Sun. The distance to M13 is 21,000 light years. The light you are seeing tonight was emitted by those stars many thousands of years before any civilizations existed on Earth. ...
Powerpoint for today
... 2. If you are in freefall, you are also weightless. Einstein says these are equivalent. So in freefall, the light and the ball also travel in straight lines. 3. Now imagine two people in freefall on Earth, passing a ball back and forth. From their perspective, they pass the ball in a straight line. ...
... 2. If you are in freefall, you are also weightless. Einstein says these are equivalent. So in freefall, the light and the ball also travel in straight lines. 3. Now imagine two people in freefall on Earth, passing a ball back and forth. From their perspective, they pass the ball in a straight line. ...
Coherence of starlight The nearest star (other than
... Coherence of starlight The nearest star (other than our sun) to us is Proxima Centauri at a distance of 30 trillion kilometers, and it has an angular diameter of 2 millionth of a degree or 7 milliarseconds (1 milliarcsecond is 1 thousandth of an arcsecond which is one sixtieth of an arcminute which ...
... Coherence of starlight The nearest star (other than our sun) to us is Proxima Centauri at a distance of 30 trillion kilometers, and it has an angular diameter of 2 millionth of a degree or 7 milliarseconds (1 milliarcsecond is 1 thousandth of an arcsecond which is one sixtieth of an arcminute which ...
Earth and Space Review 2016
... Electromagnetic Spectrum (EMS) 29. Using the electromagnetic spectrum, which waves have the shortest wavelength? ________________ Which ones have the longest wavelength? ________________ ...
... Electromagnetic Spectrum (EMS) 29. Using the electromagnetic spectrum, which waves have the shortest wavelength? ________________ Which ones have the longest wavelength? ________________ ...
Chapter 8: Stars
... • Gravity pulls the gas and dust into a sphere. • As the sphere becomes denser, it gets hotter and the hydrogen changes to helium in a process called nuclear fusion ...
... • Gravity pulls the gas and dust into a sphere. • As the sphere becomes denser, it gets hotter and the hydrogen changes to helium in a process called nuclear fusion ...
PHY 116 From Newton to Einstein Model Answers to Exercise Sheet 5
... made mostly of neutrons and called a neutron star. The density of the neutron start is roughly 1014 times as great as that of ordinary solid matter. Suppose we represent the start as a uniform solid rigid sphere, both before and after collapse. The star’s initial radius was 7.0 x 105 km (comparable ...
... made mostly of neutrons and called a neutron star. The density of the neutron start is roughly 1014 times as great as that of ordinary solid matter. Suppose we represent the start as a uniform solid rigid sphere, both before and after collapse. The star’s initial radius was 7.0 x 105 km (comparable ...
a 03 Scale and Comparing Planets to Stars ppt
... • This Means that the light we see from Andromeda Galaxy left there 2.2 million years ago. • It is therefore very possible that some of the stars in Andromeda have exploded as a supernova or gone out long ago. The message of these star finishing events just has not gotten to us yet! ...
... • This Means that the light we see from Andromeda Galaxy left there 2.2 million years ago. • It is therefore very possible that some of the stars in Andromeda have exploded as a supernova or gone out long ago. The message of these star finishing events just has not gotten to us yet! ...
titel - Maastricht University
... The line connecting a planet to the sun sweeps out equal areas in equal amounts of time. 3. Kepler's law of periods: The time required for a planet to orbit the sun, called its period, is proportional to the long axis of the ellipse raised to the 3/2 power. The constant of proportionality is the sam ...
... The line connecting a planet to the sun sweeps out equal areas in equal amounts of time. 3. Kepler's law of periods: The time required for a planet to orbit the sun, called its period, is proportional to the long axis of the ellipse raised to the 3/2 power. The constant of proportionality is the sam ...
The Origin of the Elements - Indiana University Astronomy
... Heavy Elements from Massive Stars Large stars also fuse hydrogen into helium, and helium into carbon But their larger masses lead to higher temperatures, which allow fusion of carbon into magnesium, etc. ...
... Heavy Elements from Massive Stars Large stars also fuse hydrogen into helium, and helium into carbon But their larger masses lead to higher temperatures, which allow fusion of carbon into magnesium, etc. ...
Today`s Powerpoint - Physics and Astronomy
... A: Molecules in the atmosphere scatter red light more than blue light. B: Molecules in the atmosphere scatter blue light more than red light. C: Molecules in the atmosphere absorb the red light D: The sky reflects the color of the oceans. ...
... A: Molecules in the atmosphere scatter red light more than blue light. B: Molecules in the atmosphere scatter blue light more than red light. C: Molecules in the atmosphere absorb the red light D: The sky reflects the color of the oceans. ...
The Galaxy Presentation 2011
... - Within 33 l.y. (10 pc) are over 300 stars - Most are dim, red type M - A few (Sirius, Vega, Altair, Fomalhaut) are bright, white stars younger than Sun - No very massive, short-lived stars (type O or B) - We are in a quiet “suburb,” but it was not always that way. - Hot X-Ray emitting gas coming f ...
... - Within 33 l.y. (10 pc) are over 300 stars - Most are dim, red type M - A few (Sirius, Vega, Altair, Fomalhaut) are bright, white stars younger than Sun - No very massive, short-lived stars (type O or B) - We are in a quiet “suburb,” but it was not always that way. - Hot X-Ray emitting gas coming f ...
Gravitation
... At the surface, or photosphere, of the red super giant star Betelgeuse, the gravitational force between the star and a 1.00 kg mass of hot gas is only 2.19 × 10 -3 N. This is because the mean radius of Betelgeuse is so large. Given that the mass of Betelgeuse is 20 times that of the sun, or 3.98 × 1 ...
... At the surface, or photosphere, of the red super giant star Betelgeuse, the gravitational force between the star and a 1.00 kg mass of hot gas is only 2.19 × 10 -3 N. This is because the mean radius of Betelgeuse is so large. Given that the mass of Betelgeuse is 20 times that of the sun, or 3.98 × 1 ...
Problem sheet : 1
... This is not meant for evaluation and need not be submitted back. However, you are welcome to approach me for any doubts and clarifications. Some of these problems are taken from Beiser’s book. You can consult the book for more hints on solution. 1. Find the de Broglie wavelength of a football of mas ...
... This is not meant for evaluation and need not be submitted back. However, you are welcome to approach me for any doubts and clarifications. Some of these problems are taken from Beiser’s book. You can consult the book for more hints on solution. 1. Find the de Broglie wavelength of a football of mas ...
PHY 115–003 - Oakton Community College
... 4) At a certain time of the year, the pointer stars in the Big Dipper lie directly to the left of Polaris, when viewed from Chicago at 2 am. At the same time of year, at what time would the pointers stars of the Big Dipper appear to be directly above Polaris, as viewed from Chicago? ...
... 4) At a certain time of the year, the pointer stars in the Big Dipper lie directly to the left of Polaris, when viewed from Chicago at 2 am. At the same time of year, at what time would the pointers stars of the Big Dipper appear to be directly above Polaris, as viewed from Chicago? ...
Today`s Objectives - RanelaghALevelPhysics
... • If the Sun has a radius of 6.96 x 108 m and a surface temperature of about 6000 K, what is its total power output? • What is the power per unit area? • What is the peak wavelength? ...
... • If the Sun has a radius of 6.96 x 108 m and a surface temperature of about 6000 K, what is its total power output? • What is the power per unit area? • What is the peak wavelength? ...
Today`s Powerpoint
... => the sun must produce as much energy as it gives off every second => Sun burns 600 billion kg of H into He every second Only about 10% of mass of sun will ever by involved in burning H M_sun fusion = 0.1 x times mass of sun (2 x 1030 kg) = 2 x 1029 kg Seconds in one year = 3.16 x 107 s/year How ma ...
... => the sun must produce as much energy as it gives off every second => Sun burns 600 billion kg of H into He every second Only about 10% of mass of sun will ever by involved in burning H M_sun fusion = 0.1 x times mass of sun (2 x 1030 kg) = 2 x 1029 kg Seconds in one year = 3.16 x 107 s/year How ma ...
Matariki-Maori New Year
... New Moon is when the Moon is between Sun and the Earth First quarter is when it has moved one fourth of it’s way around the Earth but it looks like a semi-circle and many call it a “half Moon”! • Full Moon comes half way through the cycle (Sun, Earth & Moon Alignment. • 29.5 days is not a factor of ...
... New Moon is when the Moon is between Sun and the Earth First quarter is when it has moved one fourth of it’s way around the Earth but it looks like a semi-circle and many call it a “half Moon”! • Full Moon comes half way through the cycle (Sun, Earth & Moon Alignment. • 29.5 days is not a factor of ...
Notes Chapter 4
... 24. Sunspots are cooler than the surrounding photosphere. 25. umbra—dark inner portion of a sunspot penumbra—brighter outer portion of a sunspot 26. The number of sunspots reaching a maximum average every 11 years. 27. This pattern switches during each sunspot cycle; therefore it takes 22 years for ...
... 24. Sunspots are cooler than the surrounding photosphere. 25. umbra—dark inner portion of a sunspot penumbra—brighter outer portion of a sunspot 26. The number of sunspots reaching a maximum average every 11 years. 27. This pattern switches during each sunspot cycle; therefore it takes 22 years for ...
WEBDA - a tool for CP star research in open clusters
... Abstract. WEBDA (http://www.univie.ac.at/webda) is a site devoted to stellar observational data, such as chemically peculiar stars, in stellar clusters in the Milky Way and the Small Magellanic Cloud. It is intended to provide a reliable synthesis of the available data and knowledge about these obje ...
... Abstract. WEBDA (http://www.univie.ac.at/webda) is a site devoted to stellar observational data, such as chemically peculiar stars, in stellar clusters in the Milky Way and the Small Magellanic Cloud. It is intended to provide a reliable synthesis of the available data and knowledge about these obje ...
Kepler`s laws - FSU High Energy Physics
... semimajor and semimajor axes are equal: a = b = r excentricity of ellipse = (distance of focus from center) divided by (semimajor axis) excentricity of a circle = 0 excentricities of most planetary orbits very small ...
... semimajor and semimajor axes are equal: a = b = r excentricity of ellipse = (distance of focus from center) divided by (semimajor axis) excentricity of a circle = 0 excentricities of most planetary orbits very small ...
4550-15Lecture33
... The energy released in the supernova is astounding. In its first 10 seconds, the 1987A supernova released more energy than the entire visible universe, and 100 times more energy than the Sun will release in its entire 10 billion year lifetime. The supernova begins with the collapse of the stellar co ...
... The energy released in the supernova is astounding. In its first 10 seconds, the 1987A supernova released more energy than the entire visible universe, and 100 times more energy than the Sun will release in its entire 10 billion year lifetime. The supernova begins with the collapse of the stellar co ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.