Stars through the year
... The apparent movement of the stars during the year If you go out on a clear night and look at the sky for a while you will see that the stars seem to move across the sky during the night. This movement is not due to the stars themselves moving but to the Earth spinning on its axis. Now go out at the ...
... The apparent movement of the stars during the year If you go out on a clear night and look at the sky for a while you will see that the stars seem to move across the sky during the night. This movement is not due to the stars themselves moving but to the Earth spinning on its axis. Now go out at the ...
70 Thousand Million, Million, Million Stars in Space
... 24 trillion miles (40 trillion km) away. The Sun is a star at the center of our solar system. Its distance from Earth depends on Earth’s position while orbiting the Sun. On average, it is 93 million miles (150 million km) away. Venus’ distance from Earth varies depending on the orbit of both planets ...
... 24 trillion miles (40 trillion km) away. The Sun is a star at the center of our solar system. Its distance from Earth depends on Earth’s position while orbiting the Sun. On average, it is 93 million miles (150 million km) away. Venus’ distance from Earth varies depending on the orbit of both planets ...
Week 11 Concept Summary
... (c) Halo: The halo contains only older stars, almost all inside the globular clusters also found there. There is no gas and dust, and what stars are there have very low concentrations of heavy elements. They also orbit randomly in the gallaxy. 2. Interstellar Medium: This is the gas and dust that fl ...
... (c) Halo: The halo contains only older stars, almost all inside the globular clusters also found there. There is no gas and dust, and what stars are there have very low concentrations of heavy elements. They also orbit randomly in the gallaxy. 2. Interstellar Medium: This is the gas and dust that fl ...
Chapter 2: The Sky
... • If the Earth did not rotate about its axis, could we define a celestial sphere as we do now? • Could we even define a set of poles and equator? • What is the difference between a constellation and an asterism? Examples? • What does the word apparent mean in the context of “apparent visual magnitud ...
... • If the Earth did not rotate about its axis, could we define a celestial sphere as we do now? • Could we even define a set of poles and equator? • What is the difference between a constellation and an asterism? Examples? • What does the word apparent mean in the context of “apparent visual magnitud ...
Life Cycles of Stars
... Fate of High Mass Stars • After Helium is exhausted, core collapses again until it becomes hot enough to fuse Carbon into Magnesium or Oxygen. • Through a combination of processes, successively heavier elements are formed and burned. ...
... Fate of High Mass Stars • After Helium is exhausted, core collapses again until it becomes hot enough to fuse Carbon into Magnesium or Oxygen. • Through a combination of processes, successively heavier elements are formed and burned. ...
Document
... 1. It has been determined that all stars have the same general composition (90% H, 9% He, trace amounts of heavy elements). If this is the case, explain why stars of different temperatures show different spectral line patterns. ...
... 1. It has been determined that all stars have the same general composition (90% H, 9% He, trace amounts of heavy elements). If this is the case, explain why stars of different temperatures show different spectral line patterns. ...
The Inverse Square Law and Surface Area
... • There are several classes of stars with known power output. • Stars which have the same surface temperature ( and spectral characteristics) as the sun all have the same power output • We can readily calculate the power output of nearby stars and classify their power output and compare them with mo ...
... • There are several classes of stars with known power output. • Stars which have the same surface temperature ( and spectral characteristics) as the sun all have the same power output • We can readily calculate the power output of nearby stars and classify their power output and compare them with mo ...
The Life Cycle of Stars
... by reading up on Main Sequence Stars and find out how our sun compares in mass to other stars like Sirius, and Proxima Centauri. Based on its mass, will our sun be around for a while? ...
... by reading up on Main Sequence Stars and find out how our sun compares in mass to other stars like Sirius, and Proxima Centauri. Based on its mass, will our sun be around for a while? ...
Sky Science Review for Test Part A
... S.O. 2 – Describe the location and movement of individual stars and groups of stars (constellations) as they move through the night sky. The star remains in the same location is called (3 names)______________________, ___________________, __________________ ...
... S.O. 2 – Describe the location and movement of individual stars and groups of stars (constellations) as they move through the night sky. The star remains in the same location is called (3 names)______________________, ___________________, __________________ ...
PHYS 175 Fall 2014 Final Recitation Ch. 16 The Sun
... Photons released in the core (where fusion takes place) collide almost instantaneously with other core constituents. This energy gradually flows outward, until the density of the sun decreases sufficiently to allow for radiative diffusion of the energy. Again, the photons still undergo many collisio ...
... Photons released in the core (where fusion takes place) collide almost instantaneously with other core constituents. This energy gradually flows outward, until the density of the sun decreases sufficiently to allow for radiative diffusion of the energy. Again, the photons still undergo many collisio ...
The Great Bear - Interactive Stars
... turned into a bear and was pursued by her own hounds, only later to be placed amongst the stars. Arcas, her child, grew up to be Arcadia's king, bringing agriculture to that wild and rugged country, for which he was immortalised amongst the stars as Bootes, the inventor of the Wagon, which is the ot ...
... turned into a bear and was pursued by her own hounds, only later to be placed amongst the stars. Arcas, her child, grew up to be Arcadia's king, bringing agriculture to that wild and rugged country, for which he was immortalised amongst the stars as Bootes, the inventor of the Wagon, which is the ot ...
measure
... million million km from the Earth. It takes light more than 4 years to travel this distance. If the distance from the Earth to the Sun were the width of this screen, the next nearest star would be in Rome. ...
... million million km from the Earth. It takes light more than 4 years to travel this distance. If the distance from the Earth to the Sun were the width of this screen, the next nearest star would be in Rome. ...
ASTR 300 Stars and Stellar Systems Spring 2011
... 3. A binary star system contains one star of mass 0.8 M ⊙ and another of mass 2.2 M⊙ . They are in circular orbits and the distance between the centers of the stars is 1.5 AU. (a) What is the period P of the binary? Kepler’s third law is (M1 +M2 )P 2 = a3 . In this case M1 +M2 = 2.2+0.8 ...
... 3. A binary star system contains one star of mass 0.8 M ⊙ and another of mass 2.2 M⊙ . They are in circular orbits and the distance between the centers of the stars is 1.5 AU. (a) What is the period P of the binary? Kepler’s third law is (M1 +M2 )P 2 = a3 . In this case M1 +M2 = 2.2+0.8 ...
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.