The eleventh annual AST poster session - Home
... One thought that has been on humans minds since we first started looking to sky was if we are alone in the universe. Instead of just sitting and waiting for a visitor to come to our planet to answer the question, U.C. Berkeley started recording radio transmissions from space on November 20, 1998 fro ...
... One thought that has been on humans minds since we first started looking to sky was if we are alone in the universe. Instead of just sitting and waiting for a visitor to come to our planet to answer the question, U.C. Berkeley started recording radio transmissions from space on November 20, 1998 fro ...
of a Star
... Introduced 360° in a circle Introduced use of trigonometry Using data from solar eclipse was able to calculate distance to moon. • Accurate star chart with 850 stars • Created magnitude scale of 1 to 6 ...
... Introduced 360° in a circle Introduced use of trigonometry Using data from solar eclipse was able to calculate distance to moon. • Accurate star chart with 850 stars • Created magnitude scale of 1 to 6 ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... Cecilia Payne-Gaposchkin (1900-1979) • Payne argued that the great variation in stellar absorption lines was due to differing amounts of ionization (due to differing temperatures), not different abundances of elements ...
... Cecilia Payne-Gaposchkin (1900-1979) • Payne argued that the great variation in stellar absorption lines was due to differing amounts of ionization (due to differing temperatures), not different abundances of elements ...
Stars and Galaxies – Notes
... Many stars are found in multiple-star systems. Alpha Centauri is in a multiple star system. It is made up of three stars called a triple star system. Over half of the stars in the sky have at least one companion star. Most of these stars are doublestar systems in which two stars revolve around each ...
... Many stars are found in multiple-star systems. Alpha Centauri is in a multiple star system. It is made up of three stars called a triple star system. Over half of the stars in the sky have at least one companion star. Most of these stars are doublestar systems in which two stars revolve around each ...
Concise pioneers of astronomy
... Aristarchus 310-230 B.C. was certainly both a mathematician and astronomer and he is most celebrated as the first to propose a sun-centered universe. He is also famed for his pioneering attempt to determine the sizes and distances of the sun and moon. According to his contemporary, Archimedes, Arist ...
... Aristarchus 310-230 B.C. was certainly both a mathematician and astronomer and he is most celebrated as the first to propose a sun-centered universe. He is also famed for his pioneering attempt to determine the sizes and distances of the sun and moon. According to his contemporary, Archimedes, Arist ...
Chapter 28.3 Topic questions
... 10. On the H-R diagram what are the stars called that have luminosity greater than red giant stars and their diameters are how much larger than the sun’s? 11. Red Super Giant stars have surface temperatures that are cooler than our earth, so why do they have greater luminosity than the sun? 12. The ...
... 10. On the H-R diagram what are the stars called that have luminosity greater than red giant stars and their diameters are how much larger than the sun’s? 11. Red Super Giant stars have surface temperatures that are cooler than our earth, so why do they have greater luminosity than the sun? 12. The ...
STARS Chapter 8 Section 1
... one year, or 186,282 miles per second, or 5.88 trillion miles**** This quasar is 10 billion light years from Earth ...
... one year, or 186,282 miles per second, or 5.88 trillion miles**** This quasar is 10 billion light years from Earth ...
Chapter 24 Test:Stars/Galaxies
... Chapter 24 Test:Stars/Galaxies MULTIPLE CHOICE: Write the CAPITAL LETTER (or lose 1/2pt./item!) that goes with the best answer for each blank on the seperate answer sheet provided. ...
... Chapter 24 Test:Stars/Galaxies MULTIPLE CHOICE: Write the CAPITAL LETTER (or lose 1/2pt./item!) that goes with the best answer for each blank on the seperate answer sheet provided. ...
Skywatch Astro Ed Dec13
... Between Sirius and Aldebaran, another bright star beckons us. This is Rigel, which at 900 light years away, is more than 100 times further away than Sirius. Yet, if we swapped the two, then Rigel would shine so bright that it would produce about a fifth the light of the full moon. Rigel is, then, in ...
... Between Sirius and Aldebaran, another bright star beckons us. This is Rigel, which at 900 light years away, is more than 100 times further away than Sirius. Yet, if we swapped the two, then Rigel would shine so bright that it would produce about a fifth the light of the full moon. Rigel is, then, in ...
Asteroseismology and the Solar
... due to fixed Dc but largest shifts at higher frequency Metcalfe et al. (2007) ...
... due to fixed Dc but largest shifts at higher frequency Metcalfe et al. (2007) ...
Life Cycle of Star Flipbook
... 6. What is going to happen to our Sun’s magnitude and temperature when it goes to its next stage? 7. What is the final stage of our Sun’s life? 8. What will happen to our Sun’s magnitude and temperature when it goes to its final stage? 9. What determines which star will go supernova? 10. What two fo ...
... 6. What is going to happen to our Sun’s magnitude and temperature when it goes to its next stage? 7. What is the final stage of our Sun’s life? 8. What will happen to our Sun’s magnitude and temperature when it goes to its final stage? 9. What determines which star will go supernova? 10. What two fo ...
PowerPoint Presentation - ASTR498E High energy
... The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
... The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
Stars
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left be ...
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left be ...
the life cycle of stars
... BLACK HOLE • A volume of space in which gravity is SO GREAT that nothing can escape, not even light, although objects can fall in • If the core of a supernova has a mass of more than about two Suns, its own gravity will squash it further, into a black hole. ...
... BLACK HOLE • A volume of space in which gravity is SO GREAT that nothing can escape, not even light, although objects can fall in • If the core of a supernova has a mass of more than about two Suns, its own gravity will squash it further, into a black hole. ...
BASIC PROPERTIES of STARS - 2
... to +/- 300 km/sec. A few up to 600 km/s (escape velocity from Galaxy). Typical for stars in disk is 30 km/sec. ...
... to +/- 300 km/sec. A few up to 600 km/s (escape velocity from Galaxy). Typical for stars in disk is 30 km/sec. ...
Galactic Address/Stars/Constellations
... • Stars can be as small as Earth or as large as the orbit of Jupiter. • https://www.youtube.com/watch?v=HEheh1BH34Q ...
... • Stars can be as small as Earth or as large as the orbit of Jupiter. • https://www.youtube.com/watch?v=HEheh1BH34Q ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.