The Abundances of the Fe Group Elements in Three Early B Stars in
... in which an extremely low N abundance was found (Peters & Adelman 2005). The photospheric abundances in AV 304 appear to be unaltered by processed material from the interior and this star represents the current composition of the ISM in the SMC in the region of ...
... in which an extremely low N abundance was found (Peters & Adelman 2005). The photospheric abundances in AV 304 appear to be unaltered by processed material from the interior and this star represents the current composition of the ISM in the SMC in the region of ...
2. A giant hand took one of the planets discovered
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
Today`s Powerpoint
... Globular clusters formed 12-14 billion years ago. Useful info for studying the history of the Milky Way Galaxy. ...
... Globular clusters formed 12-14 billion years ago. Useful info for studying the history of the Milky Way Galaxy. ...
Our Galaxy, the Milky Way Galaxy
... Galactic Dynamics – Study of the shape of galaxies and how they change (by studying the orbits of the individual stars) Theoretical Galactic Dynamists – Write computer simulations to show how a galaxy chnages o Most powerful computers can only do simulations with millions of stars We don’t know why ...
... Galactic Dynamics – Study of the shape of galaxies and how they change (by studying the orbits of the individual stars) Theoretical Galactic Dynamists – Write computer simulations to show how a galaxy chnages o Most powerful computers can only do simulations with millions of stars We don’t know why ...
Study Island
... 3. A prediction is a forecast about what may happen in some future situation. An inference is an explanation based on observations and background knowledge. Based on these definitions, which of the following statements is a prediction? A. The stove was hot because the kitchen light was on too long. ...
... 3. A prediction is a forecast about what may happen in some future situation. An inference is an explanation based on observations and background knowledge. Based on these definitions, which of the following statements is a prediction? A. The stove was hot because the kitchen light was on too long. ...
Ch 28 Class Notes
... 2. An important class of pulsating stars are called _____________________________. These are yellow supergiants whose cycles of brightness range from about 1 day to 50 days (5 is average). The absolute magnitude of a Cepheid is related to the length of time between its periods of maximum brightness ...
... 2. An important class of pulsating stars are called _____________________________. These are yellow supergiants whose cycles of brightness range from about 1 day to 50 days (5 is average). The absolute magnitude of a Cepheid is related to the length of time between its periods of maximum brightness ...
Tutorial: Luminosity
... Luminosity (brightness) of a Star Two stars have the same apparent brightness as measured from the earth. Star A is 15 pc from the earth, star B is 30 pc from the earth. Which star has the greater luminosity, and how much greater is the luminosity of this star as compared to the lower luminosity st ...
... Luminosity (brightness) of a Star Two stars have the same apparent brightness as measured from the earth. Star A is 15 pc from the earth, star B is 30 pc from the earth. Which star has the greater luminosity, and how much greater is the luminosity of this star as compared to the lower luminosity st ...
Teacher Guide - Astronomy Outreach at UT Austin
... This activity is an opportunity for students to learn about the fundamental characterisitcs of stars and their life cycles. Students perform a play as members of an interview with several different stars. As the play progresses, students develop an understanding of the most fundamental concepts in s ...
... This activity is an opportunity for students to learn about the fundamental characterisitcs of stars and their life cycles. Students perform a play as members of an interview with several different stars. As the play progresses, students develop an understanding of the most fundamental concepts in s ...
Spectroscopy, the Doppler Shift and Masses of Binary Stars
... those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
... those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
stars & galaxies
... • Galaxies can be classified into 3 different classes, based on their shape. • The 3 types of Galaxies are; • Spiral galaxies ...
... • Galaxies can be classified into 3 different classes, based on their shape. • The 3 types of Galaxies are; • Spiral galaxies ...
Test 3, February 7, 2007 - Brock physics
... 42. In order to detect a black hole one looks for (a) a spot into which stars and their planets fall. (b) a binary system where a companion star is not visible but has a mass greater than 3 solar masses and is an intense X-ray source. (c) intense source of visible light. (d) the accompanying white h ...
... 42. In order to detect a black hole one looks for (a) a spot into which stars and their planets fall. (b) a binary system where a companion star is not visible but has a mass greater than 3 solar masses and is an intense X-ray source. (c) intense source of visible light. (d) the accompanying white h ...
center of mass
... 20. In a given volume of space the Red Dwarf (or lower main sequence) stars are the most abundant, however, on many H-R diagrams very few of these stars are plotted. Why? a. Photographic film and CCDs both have low sensitivity to lowenergy red photons. b. They are so very distant that parallax angle ...
... 20. In a given volume of space the Red Dwarf (or lower main sequence) stars are the most abundant, however, on many H-R diagrams very few of these stars are plotted. Why? a. Photographic film and CCDs both have low sensitivity to lowenergy red photons. b. They are so very distant that parallax angle ...
Chapter 09
... 20. In a given volume of space the Red Dwarf (or lower main sequence) stars are the most abundant, however, on many H-R diagrams very few of these stars are plotted. Why? a. Photographic film and CCDs both have low sensitivity to lowenergy red photons. b. They are so very distant that parallax angle ...
... 20. In a given volume of space the Red Dwarf (or lower main sequence) stars are the most abundant, however, on many H-R diagrams very few of these stars are plotted. Why? a. Photographic film and CCDs both have low sensitivity to lowenergy red photons. b. They are so very distant that parallax angle ...
Zairamink_Lifecycle of a Star
... They are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading over several weeks or months. During the time a Super Nova is around, it radiates as much energy as the sun in it’s entire life time. After a Super Nova one of two things can ...
... They are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading over several weeks or months. During the time a Super Nova is around, it radiates as much energy as the sun in it’s entire life time. After a Super Nova one of two things can ...
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.