Astronomy Day 2006: A short presentation on eclipsing binary stars
... Why Are They Studied? The type of eclipsing binary stars that I am studying are called contact or over-contact binaries and these are in the last evolutionary stage of this two-star system. From these stars we can learn about the dynamic properties that exists in stars like the mass transfer proce ...
... Why Are They Studied? The type of eclipsing binary stars that I am studying are called contact or over-contact binaries and these are in the last evolutionary stage of this two-star system. From these stars we can learn about the dynamic properties that exists in stars like the mass transfer proce ...
argo and other tidal structures around the milky way
... they argue to be the progenitor of the MSS. In order to study the MSS, we have extracted a giant star candidate sample from the 2MASS point source release as all stars having dereddened 0.85 < J − KS < 1.5, KS < 13.0, and that meet a M giant color locus restriction (details about the sample, as well ...
... they argue to be the progenitor of the MSS. In order to study the MSS, we have extracted a giant star candidate sample from the 2MASS point source release as all stars having dereddened 0.85 < J − KS < 1.5, KS < 13.0, and that meet a M giant color locus restriction (details about the sample, as well ...
Star - University of Pittsburgh
... 300,000 km/s. We see some EMR (or photons) with our eyes (visible light) and feel heat energy (infrared) from photons when our body absorbs them. Radio and TV waves are also types of EMR. ...
... 300,000 km/s. We see some EMR (or photons) with our eyes (visible light) and feel heat energy (infrared) from photons when our body absorbs them. Radio and TV waves are also types of EMR. ...
Topic Outline - Physics Rocks!
... E.6.1 Describe the distribution of galaxies in the universe E.6.2 Explain the red-shift of light from distant galaxies E.6.3 Solve problems involving red-shift and the recession speed of galaxies Hubble’s Law E.6.4 State Hubble’s Law E.6.5 Discuss the limitations of Hubble’s law E.6.6 Explain how th ...
... E.6.1 Describe the distribution of galaxies in the universe E.6.2 Explain the red-shift of light from distant galaxies E.6.3 Solve problems involving red-shift and the recession speed of galaxies Hubble’s Law E.6.4 State Hubble’s Law E.6.5 Discuss the limitations of Hubble’s law E.6.6 Explain how th ...
MSci Astrophysics 210PHY412 - Queen's University Belfast
... complex stellar evolution models Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes pla ...
... complex stellar evolution models Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes pla ...
NASC 1100
... The total energy production rate falls from its red giant phase peak. This reduces the star’s luminosity and decreases the star’s radius, making its surface hotter. In the H-R diagram, the star goes down and to the left. All low-mass stars fuse helium into carbon at nearly the same rate they have ...
... The total energy production rate falls from its red giant phase peak. This reduces the star’s luminosity and decreases the star’s radius, making its surface hotter. In the H-R diagram, the star goes down and to the left. All low-mass stars fuse helium into carbon at nearly the same rate they have ...
Sample Answer Sheet for The 10 Tourist Wonders of the
... Justification: Massive stars end their lives in huge explosions that astronomers call supernovae. As much as 90% of the star’s material can be thrown off during the explosion and, in the process, new (heavier) elements are made, and then distributed at high speed into the Galaxy. In many ways, life ...
... Justification: Massive stars end their lives in huge explosions that astronomers call supernovae. As much as 90% of the star’s material can be thrown off during the explosion and, in the process, new (heavier) elements are made, and then distributed at high speed into the Galaxy. In many ways, life ...
FOTO Imaging
... bring your own telescope if you have one… or, “rent” one of ours for the evening! A brief presentation will introduce you to the basics of how to use a telescope, and the best targets to look for in the sky that night. Simple star charts will be provided. The rest of the evening will be spent outsid ...
... bring your own telescope if you have one… or, “rent” one of ours for the evening! A brief presentation will introduce you to the basics of how to use a telescope, and the best targets to look for in the sky that night. Simple star charts will be provided. The rest of the evening will be spent outsid ...
Chapter 7 Mapping the Sky
... average of the variations caused by Earth's non-circular orbit. Earth’s rotation period relative to the other stars (sidereal time) is 3 minutes 56.55 seconds shorter than the mean solar day. The following figure explains this apparent discrepancy. Suppose the day starts when Earth’s orbital positio ...
... average of the variations caused by Earth's non-circular orbit. Earth’s rotation period relative to the other stars (sidereal time) is 3 minutes 56.55 seconds shorter than the mean solar day. The following figure explains this apparent discrepancy. Suppose the day starts when Earth’s orbital positio ...
ASTR 1101-001 Spring 2008 - Louisiana State University
... More About: Continuous Spectra from Hot Dense Gases (or Solids) • Kirchhoff’s 1st Law: Hot dense gas produces a continuous spectrum (a complete rainbow of colors) • A plot of light intensity versus wavelength always has the ...
... More About: Continuous Spectra from Hot Dense Gases (or Solids) • Kirchhoff’s 1st Law: Hot dense gas produces a continuous spectrum (a complete rainbow of colors) • A plot of light intensity versus wavelength always has the ...
Document
... • The most massive stars have the shortest lives. • Stars that are 25 to 50 times that of the Sun live for only a few million years. • Stars like our Sun live for about 10 billion years (our Sun is about half way through its life cycle!) • Stars less massive than the Sun have even longer life spans. ...
... • The most massive stars have the shortest lives. • Stars that are 25 to 50 times that of the Sun live for only a few million years. • Stars like our Sun live for about 10 billion years (our Sun is about half way through its life cycle!) • Stars less massive than the Sun have even longer life spans. ...
The Origins of Modern Astronomy Astronomy goes back to well
... to the Sun. He calculated this angle to be approximately 7º. This was then found (using geometry) to be the angle between the two towns. This gave him a “pie piece” of Earth with a 7º point. Knowing that a circle has 360º, you could then place identical pie pieces next to each other until you have a ...
... to the Sun. He calculated this angle to be approximately 7º. This was then found (using geometry) to be the angle between the two towns. This gave him a “pie piece” of Earth with a 7º point. Knowing that a circle has 360º, you could then place identical pie pieces next to each other until you have a ...
Unit 3 - Section 9.1 2011 Distances in Space
... 8. Assuming each tile on the floor is 1 LY, what is the separation distance in light years? 9. Locate at point randomly between 90O and 91O at 30 tiles 10. What is the coordinate degree you would assign to the new coordinate to exactly reach this point on the floor? NOTE: You cannot guess….you must ...
... 8. Assuming each tile on the floor is 1 LY, what is the separation distance in light years? 9. Locate at point randomly between 90O and 91O at 30 tiles 10. What is the coordinate degree you would assign to the new coordinate to exactly reach this point on the floor? NOTE: You cannot guess….you must ...
01.05.10 Centuries-Old Star Mystery Coming to a Close For almost
... meeting of the American Astronomical Meeting in Washington. Epsilon Aurigae can be seen at night from the northern hemisphere with the naked eye, even in some urban areas. Last August, it began its roughly two-year dimming, an event that happens like clockwork every 27.1 years and results in the sta ...
... meeting of the American Astronomical Meeting in Washington. Epsilon Aurigae can be seen at night from the northern hemisphere with the naked eye, even in some urban areas. Last August, it began its roughly two-year dimming, an event that happens like clockwork every 27.1 years and results in the sta ...
Grade 9 Academic Science – Unit 3 Space
... 8. Assuming each tile on the floor is 1 LY, what is the separation distance in light years? 9. Locate at point randomly between 90O and 91O at 30 tiles 10. What is the coordinate degree you would assign to the new coordinate to exactly reach this point on the floor? NOTE: You cannot guess….you must ...
... 8. Assuming each tile on the floor is 1 LY, what is the separation distance in light years? 9. Locate at point randomly between 90O and 91O at 30 tiles 10. What is the coordinate degree you would assign to the new coordinate to exactly reach this point on the floor? NOTE: You cannot guess….you must ...
Presentation available here - Lunar and Planetary Institute
... Fellow, Robert Quimby used ROTSE to conduct the Texas Supernova Search, covering unprecedently large volumes of space. Quimby discovered the intrinsically brightest supernova ever seen! (at the time, Fall 2006) I proposed that it was yet a different kind of explosion, proposed theoretically 40 years ...
... Fellow, Robert Quimby used ROTSE to conduct the Texas Supernova Search, covering unprecedently large volumes of space. Quimby discovered the intrinsically brightest supernova ever seen! (at the time, Fall 2006) I proposed that it was yet a different kind of explosion, proposed theoretically 40 years ...
Name
... half as bright as second magnitude stars, and so on. Modern astronomers have changed Hipparchus’s system a little. In the modern system, an object of magnitude 1 appears 100 times as bright as one of magnitude of 6. This means that if two objects are separated by one unit of magnitude, the brighter ...
... half as bright as second magnitude stars, and so on. Modern astronomers have changed Hipparchus’s system a little. In the modern system, an object of magnitude 1 appears 100 times as bright as one of magnitude of 6. This means that if two objects are separated by one unit of magnitude, the brighter ...
Lecture Nine (Powerpoint format) - Flash
... smaller, more fundamental particles (quarks). However, one can understand nuclear physics without probing the deep interior structure of the nucleons -- the protons and the ...
... smaller, more fundamental particles (quarks). However, one can understand nuclear physics without probing the deep interior structure of the nucleons -- the protons and the ...
January 14 - Astronomy
... The same thing happens on a merry-go-round. The closer you are to the edge, the faster you will be moving, and the greater the force ...
... The same thing happens on a merry-go-round. The closer you are to the edge, the faster you will be moving, and the greater the force ...
Sirius Astronomer - Orange County Astronomers
... have been obliterated or covered up. Only 4 other comets have been seen close-up by spacecraft, and this flyby produced more observations than any previous one. Of the others, one (Borrelley) is similarly shaped, and Halley is roughly similar, usually being called peanut-shaped. The Deep Impact spac ...
... have been obliterated or covered up. Only 4 other comets have been seen close-up by spacecraft, and this flyby produced more observations than any previous one. Of the others, one (Borrelley) is similarly shaped, and Halley is roughly similar, usually being called peanut-shaped. The Deep Impact spac ...
Astronomical Spectra
... Again, u0 and u1 are the partition functions for the ground and first excited states. Note that the amount of ionization depends inversely on the electron pressure – the more loose electrons there are, the less ionization. For hand calculation purposes, a shortened form of the equation can be writte ...
... Again, u0 and u1 are the partition functions for the ground and first excited states. Note that the amount of ionization depends inversely on the electron pressure – the more loose electrons there are, the less ionization. For hand calculation purposes, a shortened form of the equation can be writte ...
The Stellar Graveyard
... loss during the various phases of stellar evolution following hydrogen core exhaustion. Measuring the current mass of a white dwarf, therefore, does not indicate what its initial mass was. A 0.5 solar mass white dwarf could have easily started out life as a 10 solar mass main sequence star. A white ...
... loss during the various phases of stellar evolution following hydrogen core exhaustion. Measuring the current mass of a white dwarf, therefore, does not indicate what its initial mass was. A 0.5 solar mass white dwarf could have easily started out life as a 10 solar mass main sequence star. A white ...