Part I Light, Telescopes, Atoms and Stars
... called Black Body Radiation The amount of radiation emitted from a Black Body Emitter = a tilted curve [right] with a peak wavelength that is ONLY temperature dependent ...
... called Black Body Radiation The amount of radiation emitted from a Black Body Emitter = a tilted curve [right] with a peak wavelength that is ONLY temperature dependent ...
chapter15SurveyStars..
... frequencies. http://en.wikipedia.org/wiki/Stefan-Boltzmann_law 2. Hotter objects emit photons with a higher average energy.http://en.wikipedia.org/wiki/Wien%27s_displacement_law ...
... frequencies. http://en.wikipedia.org/wiki/Stefan-Boltzmann_law 2. Hotter objects emit photons with a higher average energy.http://en.wikipedia.org/wiki/Wien%27s_displacement_law ...
Orion the Hunter
... Hunter. Its brightest stars form one of the best known celestial shapes, which is visible even from cities. The plane of the Milky Way clips the northeast corner of the constellation and manifests itself as a featureless, hazy band through the neighboring constellations of Gemini and Monoceros. Or ...
... Hunter. Its brightest stars form one of the best known celestial shapes, which is visible even from cities. The plane of the Milky Way clips the northeast corner of the constellation and manifests itself as a featureless, hazy band through the neighboring constellations of Gemini and Monoceros. Or ...
Supernovae Gamma-Ray Bursts and and some of their uses
... layers of the star • The star may collapse directly into a black hole: these are called hypernovae or collapsars • Hypernova may or may not produce a supernova explosion, it can emit jets of gamma rays • Mergers of neutron stars should occur occassionally but not enough to produce the number of GRBs ...
... layers of the star • The star may collapse directly into a black hole: these are called hypernovae or collapsars • Hypernova may or may not produce a supernova explosion, it can emit jets of gamma rays • Mergers of neutron stars should occur occassionally but not enough to produce the number of GRBs ...
QDSpaperFred1.tex
... We note that circumstellar dust shells surrounding evolved giants are now easy to distinguish, thanks to improvements in infrared spectroscopy and in parallax measurements. High resolution spectra of even very thick dust shells reveal molecular lines expected from either carbon-rich or oxygen-rich a ...
... We note that circumstellar dust shells surrounding evolved giants are now easy to distinguish, thanks to improvements in infrared spectroscopy and in parallax measurements. High resolution spectra of even very thick dust shells reveal molecular lines expected from either carbon-rich or oxygen-rich a ...
Studying Variable stars using Small Telescopes Observational
... Studying Variable stars using Small Telescopes Advantages of having Small Telescopes – 1. Convenient access to a telescope. 2. For sufficiently bright stars, small telescopes achieve same photometric accuracy as that of large telescopes. 3. With advanced increasing sophistications in optics and ele ...
... Studying Variable stars using Small Telescopes Advantages of having Small Telescopes – 1. Convenient access to a telescope. 2. For sufficiently bright stars, small telescopes achieve same photometric accuracy as that of large telescopes. 3. With advanced increasing sophistications in optics and ele ...
November - LVAstronomy.com
... monthly summary. We also accept digital imaging. Visual astronomy depends on what’s seen through the eyepiece. Not only does it satisfy an innate curiosity, but it allows the visual observer to discover the beauty and the wonderment of the night sky. Before photography, all observations depended on ...
... monthly summary. We also accept digital imaging. Visual astronomy depends on what’s seen through the eyepiece. Not only does it satisfy an innate curiosity, but it allows the visual observer to discover the beauty and the wonderment of the night sky. Before photography, all observations depended on ...
Time From the Perspective of a Particle Physicist
... usually cold (100O K or -300O F) usually almost perfect vacuum with 1 atom/cm3 (1 g water = 1023 atoms) Local concentrations: compressed by gravity and form stars. Called Giant Molecular Clouds as molecules have been observed. Need about 1,000,000 times the mass of the Sun in 100 LY volume to initia ...
... usually cold (100O K or -300O F) usually almost perfect vacuum with 1 atom/cm3 (1 g water = 1023 atoms) Local concentrations: compressed by gravity and form stars. Called Giant Molecular Clouds as molecules have been observed. Need about 1,000,000 times the mass of the Sun in 100 LY volume to initia ...
Constellations activities (PDF 185KB)
... throughout the year. The constellation of Orion can be seen during summer evenings and the constellation of Scorpius is in the sky during winter evenings. Orion is found low in the eastern sky from December, sits overhead throughout February, and sinks low in the western sky come April. Scorpius ...
... throughout the year. The constellation of Orion can be seen during summer evenings and the constellation of Scorpius is in the sky during winter evenings. Orion is found low in the eastern sky from December, sits overhead throughout February, and sinks low in the western sky come April. Scorpius ...
pkt 14 Astrophysics
... from hundreds of millions to over one trillion stars. In the outer regions, many stars are grouped into globular clusters. ...
... from hundreds of millions to over one trillion stars. In the outer regions, many stars are grouped into globular clusters. ...
Shining Light on the Stars: The Hertzsprung-Russell
... Back at Orion, if we draw a line through his belt moving up and to the right we find a bright orange colored star called Aldebaran, located in the constellation of Taurus the Bull. It is about five hundred times the luminosity of our Sun, with a surface temperature of about 3,900 degrees Kelvin, so ...
... Back at Orion, if we draw a line through his belt moving up and to the right we find a bright orange colored star called Aldebaran, located in the constellation of Taurus the Bull. It is about five hundred times the luminosity of our Sun, with a surface temperature of about 3,900 degrees Kelvin, so ...
Life cycle of low mass stars
... 1/10 to 1/2 the size of our sun. Very slow to non-existent rate of nuclear fusion Dies as an inert ball of helium, cooling an shrinking. Have the longest lifespan of any star (up to 100 billion yr.) may die as a helium white dwarf. Proxima Centauri, the second closest star to the Sun (4. ...
... 1/10 to 1/2 the size of our sun. Very slow to non-existent rate of nuclear fusion Dies as an inert ball of helium, cooling an shrinking. Have the longest lifespan of any star (up to 100 billion yr.) may die as a helium white dwarf. Proxima Centauri, the second closest star to the Sun (4. ...
IMR_Star Theater
... If you look at the stars in the night sky long enough, you will notice how groups of stars form familiar objects, something like connect-the-dots pictures. Many centuries ago, people who gazed at the stars noticed pictures out there— and gave names to them. This helped them create a “map” of the nig ...
... If you look at the stars in the night sky long enough, you will notice how groups of stars form familiar objects, something like connect-the-dots pictures. Many centuries ago, people who gazed at the stars noticed pictures out there— and gave names to them. This helped them create a “map” of the nig ...
Earth in Space and Time (SC.5.E.5.1)
... why do these stars appear like points of light in the sky? A. These stars are hotter than the Sun. B. These stars have less mass than the Sun. C. These stars are farther away from Earth than the Sun is. D. These stars are made of different chemicals than the Sun. ...
... why do these stars appear like points of light in the sky? A. These stars are hotter than the Sun. B. These stars have less mass than the Sun. C. These stars are farther away from Earth than the Sun is. D. These stars are made of different chemicals than the Sun. ...
astro2_lec1 - Astronomy & Astrophysics Group
... o Leavitt studied Cepheids in the Large Magellanic Cloud, a satellite galaxy of the Milky Way and known even then to be very distant. o Differences in apparent brightness of LMC Cepheids must be due to differences in intrinsic ...
... o Leavitt studied Cepheids in the Large Magellanic Cloud, a satellite galaxy of the Milky Way and known even then to be very distant. o Differences in apparent brightness of LMC Cepheids must be due to differences in intrinsic ...
Mass Segregation in Globular Clusters
... A second, related prediction is that more-massive stars should sink toward the center of a cluster because of their lower speeds. This mass segregation should occur because the maximum radius to which a star can “climb” against the force of gravity pulling it toward the middle is only dependent upo ...
... A second, related prediction is that more-massive stars should sink toward the center of a cluster because of their lower speeds. This mass segregation should occur because the maximum radius to which a star can “climb” against the force of gravity pulling it toward the middle is only dependent upo ...
Project 3. Colour in Astronomy
... U=B=V=R=I=0 This does not mean that Vega show the same brightness through all filters. It is an arbitrary decision taken by the astronomers who have agreed on taking Vega as the zero point for the magnitude scale. Exercise 2: Spica and Antares are two well-known stars with colour indices (B-V)=0.13 ...
... U=B=V=R=I=0 This does not mean that Vega show the same brightness through all filters. It is an arbitrary decision taken by the astronomers who have agreed on taking Vega as the zero point for the magnitude scale. Exercise 2: Spica and Antares are two well-known stars with colour indices (B-V)=0.13 ...
Letot STELLAR EVOLUTION By Kyle Letot Grade Level: 6
... star. Using this balloon, I will explain how gravity is holding the stars in place, just as the elastic covering of rubber on the balloon is holding the air in. (I will include that stars do NOT have a membrane such as the balloon, rather the balloon has visual similarities that students can see and ...
... star. Using this balloon, I will explain how gravity is holding the stars in place, just as the elastic covering of rubber on the balloon is holding the air in. (I will include that stars do NOT have a membrane such as the balloon, rather the balloon has visual similarities that students can see and ...
Stars and the Milky Way
... • we live in a galaxy called the Milky Way • the Milky Way is one of billions of galaxies in the universe • the Milky Way is made up of over 200 billion stars Other facts about the Milky Way • The Sun is just one of the stars in the Milky Way. • It is called the Milky Way because when astronomers lo ...
... • we live in a galaxy called the Milky Way • the Milky Way is one of billions of galaxies in the universe • the Milky Way is made up of over 200 billion stars Other facts about the Milky Way • The Sun is just one of the stars in the Milky Way. • It is called the Milky Way because when astronomers lo ...
Chapter 11
... a. About 40 weeks. b. About 30,000 years. c. About 30 million years. d. About 1 billion years. e. About 5 billion years. ...
... a. About 40 weeks. b. About 30,000 years. c. About 30 million years. d. About 1 billion years. e. About 5 billion years. ...
COMING EVENTS The Pluto Files Volume 37 Number 03 March
... This swirling landscape of stars is known as the North America nebula. In visible light, the region resembles North America, but in this new infrared view from NASA's Spitzer Space Telescope, the continent disappears. Where did the continent go? The reason you don't see it in Spitzer's view has to d ...
... This swirling landscape of stars is known as the North America nebula. In visible light, the region resembles North America, but in this new infrared view from NASA's Spitzer Space Telescope, the continent disappears. Where did the continent go? The reason you don't see it in Spitzer's view has to d ...
Corona Australis
Corona Australis /kɵˈroʊnə ɒˈstreɪlɨs/ or Corona Austrina /kɵˈroʊnə ɒˈstraɪnə/ is a constellation in the Southern Celestial Hemisphere. Its Latin name means ""southern crown"", and it is the southern counterpart of Corona Borealis, the northern crown. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The Ancient Greeks saw Corona Australis as a wreath rather than a crown and associated it with Sagittarius or Centaurus. Other cultures have likened the pattern to a turtle, ostrich nest, a tent, or even a hut belonging to a rock hyrax.Although fainter than its namesake, the oval- or horseshoe-shaped pattern of its brighter stars renders it distinctive. Alpha and Beta Coronae Australis are the two brightest stars with an apparent magnitude of around 4.1. Epsilon Coronae Australis is the brightest example of a W Ursae Majoris variable in the southern sky. Lying alongside the Milky Way, Corona Australis contains one of the closest star-forming regions to our Solar System—a dusty dark nebula known as the Corona Australis Molecular Cloud, lying about 430 light years away. Within it are stars at the earliest stages of their lifespan. The variable stars R and TY Coronae Australis light up parts of the nebula, which varies in brightness accordingly.