Small Wonders: Andromeda
... skies Mt. Wilson will probably ever see to resolve the individual stars throughout M31.Although these astronomers studied M31 with the most powerful telescopes of the time, it's visible to the naked eye under all but the worst conditions of light pollution, Andromeda - the 31st entry in Messiers cat ...
... skies Mt. Wilson will probably ever see to resolve the individual stars throughout M31.Although these astronomers studied M31 with the most powerful telescopes of the time, it's visible to the naked eye under all but the worst conditions of light pollution, Andromeda - the 31st entry in Messiers cat ...
Life of stars, formation of elements
... Full extent of star-formation region becomes apparent in infra-red light. ...
... Full extent of star-formation region becomes apparent in infra-red light. ...
Friday, Oct. 10
... You judge the distance to objects (depth perception) from the fact that your two eyes view an object from two different locations, so have to look in different directions to look at an object. The different direction to an object from different positions is called parallax. Astronomers use the chang ...
... You judge the distance to objects (depth perception) from the fact that your two eyes view an object from two different locations, so have to look in different directions to look at an object. The different direction to an object from different positions is called parallax. Astronomers use the chang ...
Stellar Evolution
... We do not know that all stars, regardless of their size, eventually run out of fuel and collapse due to gravity Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, foll ...
... We do not know that all stars, regardless of their size, eventually run out of fuel and collapse due to gravity Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, foll ...
Astronomy Unit Test Review Sheet
... 27. Explain why the oceans experience high and low tides on Earth. How many tides will an area on Earth experience each day? Draw a picture of Spring Tides and Neap Tides. Which one creates the highest of ...
... 27. Explain why the oceans experience high and low tides on Earth. How many tides will an area on Earth experience each day? Draw a picture of Spring Tides and Neap Tides. Which one creates the highest of ...
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? ...
Precession of Earth
... precession, Polaris and Vega alternate as the North Star every 13,000 years. Polaris: The Current North Star Today the Earth's axis points within one degree of Polaris, the brightest star in the constellation Ursa Minor (also called the Little Bear or the Little Dipper). Polaris appears to be in a f ...
... precession, Polaris and Vega alternate as the North Star every 13,000 years. Polaris: The Current North Star Today the Earth's axis points within one degree of Polaris, the brightest star in the constellation Ursa Minor (also called the Little Bear or the Little Dipper). Polaris appears to be in a f ...
Figure 10-6 The same star field shown in Figure
... express these hitherto unsuspected magnitudes and yet retain the old scale (thereby avoiding a wholesale revision of stellar catalogs) was to adopt a few negative magnitudes. As a result, Sirius, the brightest star in the sky aside from the sun, has an apparent magnitude of -1.4 and the star 61 Cygn ...
... express these hitherto unsuspected magnitudes and yet retain the old scale (thereby avoiding a wholesale revision of stellar catalogs) was to adopt a few negative magnitudes. As a result, Sirius, the brightest star in the sky aside from the sun, has an apparent magnitude of -1.4 and the star 61 Cygn ...
Quiz # 1 - Tue 09/15/2011
... 6. If the Sun were a grapefruit in this room, the nearest star (Proxima Centauri) would be A. a peppercorn about 100 m away. B. a poppyseed about 15 m away. C. another grapefruit on the other side of campus. D. another grapefruit on the West Coast. E. a soccer ball in Hawaii. 7. From Amherst, at la ...
... 6. If the Sun were a grapefruit in this room, the nearest star (Proxima Centauri) would be A. a peppercorn about 100 m away. B. a poppyseed about 15 m away. C. another grapefruit on the other side of campus. D. another grapefruit on the West Coast. E. a soccer ball in Hawaii. 7. From Amherst, at la ...
Unit 1
... • a. Because this is the only phase that is common to all stars • b. because most stars die at the end of main sequence phase • c. because most stars in the sky are created at about the same time • d. because this is the longest lasting phase in each star life ...
... • a. Because this is the only phase that is common to all stars • b. because most stars die at the end of main sequence phase • c. because most stars in the sky are created at about the same time • d. because this is the longest lasting phase in each star life ...
Lifetimes of stars
... more than counteracted by the high rate of using the fuel. This is the general trend. Massive stars are like gas-guzzling SUVs Low-mass stars are Toyota Prius. ...
... more than counteracted by the high rate of using the fuel. This is the general trend. Massive stars are like gas-guzzling SUVs Low-mass stars are Toyota Prius. ...
OUR COSMIC NEIGHBORS Story of the Stars
... desire to become better acquainted with the stars of the night. While our information is factual and the charts are accurate, no attempt has been made to delineate the technical phases of celestial mechanicsOur efforts have been devoted to descriptive and observational astronomy. Through the use of ...
... desire to become better acquainted with the stars of the night. While our information is factual and the charts are accurate, no attempt has been made to delineate the technical phases of celestial mechanicsOur efforts have been devoted to descriptive and observational astronomy. Through the use of ...
Scientists classify stars by
... If lights A and B were next to each other they would look the same because the two lights are exactly the same. Their absolute magnitude is the same. Distance makes them look different. The same is true for stars. Two stars could be the same brightness but their distance from us makes their brightne ...
... If lights A and B were next to each other they would look the same because the two lights are exactly the same. Their absolute magnitude is the same. Distance makes them look different. The same is true for stars. Two stars could be the same brightness but their distance from us makes their brightne ...
GIZMO H-RDiagramSE
... H-R Diagram GIZMO Gizmo Warm-up In the early 1900s, astronomers were able to identify many star characteristics such as color, size, temperature, and luminosity—or how bright a star is. However, astronomers did not yet understand exactly how these characteristics were related. Using the H-R Diagram ...
... H-R Diagram GIZMO Gizmo Warm-up In the early 1900s, astronomers were able to identify many star characteristics such as color, size, temperature, and luminosity—or how bright a star is. However, astronomers did not yet understand exactly how these characteristics were related. Using the H-R Diagram ...
slides - Department of Physics and Astronomy
... Simplest way to give the location of a celestial object in the sky is to give its apparent position in the sky – Altitude: vertical angular elevation above the horizon – Azimuth: direction from North to the object: angle measured along the horizon towards the east along the horizon. ...
... Simplest way to give the location of a celestial object in the sky is to give its apparent position in the sky – Altitude: vertical angular elevation above the horizon – Azimuth: direction from North to the object: angle measured along the horizon towards the east along the horizon. ...
Maybe We Are Alone in the Universe, After All
... million Stardust mission to capture interplanetary and interstellar dust. Dr. Ward said he was drawn to the topic because of his studies of mass extinctions. Increasingly, top culprits are seen as speeding rocks from outer space that hit Earth in huge explosions, with one 65 million years ago killin ...
... million Stardust mission to capture interplanetary and interstellar dust. Dr. Ward said he was drawn to the topic because of his studies of mass extinctions. Increasingly, top culprits are seen as speeding rocks from outer space that hit Earth in huge explosions, with one 65 million years ago killin ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... called Supergiants • Stars between the Supergiants and main sequence are called Giants • Stars below the Main Sequence are called White Dwarfs ...
... called Supergiants • Stars between the Supergiants and main sequence are called Giants • Stars below the Main Sequence are called White Dwarfs ...
Sample exam 2
... sentence/paragraph format or a drawing, depending on what is asked. 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 ...
... sentence/paragraph format or a drawing, depending on what is asked. 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 ...
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.