Distant Stars - How far away is it
... If stars everywhere behave like the stars in our neighborhood, than the H-R Diagram can show us how far away they are. Astronomers call this technique spectroscopic parallax, but we‟ll just stick with “H-R Diagram”. Now, let‟s return to star gazing. We‟ll start with our old friend Betelgeuse. Betelg ...
... If stars everywhere behave like the stars in our neighborhood, than the H-R Diagram can show us how far away they are. Astronomers call this technique spectroscopic parallax, but we‟ll just stick with “H-R Diagram”. Now, let‟s return to star gazing. We‟ll start with our old friend Betelgeuse. Betelg ...
Activity 1 - Mathematical and Scientific Methods
... Core out of H, He to C fusion sets in Once core ran of He, core contracted, heated up, gave off heat, started shell fusion C -> O fusion etc. No degeneracy of the core. until an iron core is reached. ...
... Core out of H, He to C fusion sets in Once core ran of He, core contracted, heated up, gave off heat, started shell fusion C -> O fusion etc. No degeneracy of the core. until an iron core is reached. ...
Astronomy 212 EXAM 1 2000 September 29 Answer
... Answer TRUE or FALSE (not T or F) (2 pts each) 1. If SI units (the “metric system”) are being properly used the “Megamall” is a billion times bigger than a normal mall. 2. The zenith is always directly overhead. 3. At CSB/SJU the celestial equator is an hour circle. 4. The celestial equator has zero ...
... Answer TRUE or FALSE (not T or F) (2 pts each) 1. If SI units (the “metric system”) are being properly used the “Megamall” is a billion times bigger than a normal mall. 2. The zenith is always directly overhead. 3. At CSB/SJU the celestial equator is an hour circle. 4. The celestial equator has zero ...
From Simulation to Visualization: Astrophysics Goes
... From Simulation to Visualization: Astrophysics Goes Hollywood ...
... From Simulation to Visualization: Astrophysics Goes Hollywood ...
galaxy - 106Thursday130-430
... - the field is weak being only about 1/50 000 of the strength of the Earth’s magnetic field at the surface, but it influences the motion of charged particles in the galaxy. ...
... - the field is weak being only about 1/50 000 of the strength of the Earth’s magnetic field at the surface, but it influences the motion of charged particles in the galaxy. ...
1 Chapter 2 - University of Minnesota
... h. No wonder we have not yet discovered planets like Earth orbiting other stars. i. Planets as large as Jupiter perturb the motion of the stars they orbit, and we think we have detected such perturbations in several cases. (People tend to argue about this kind of thing.) j. One possible justificatio ...
... h. No wonder we have not yet discovered planets like Earth orbiting other stars. i. Planets as large as Jupiter perturb the motion of the stars they orbit, and we think we have detected such perturbations in several cases. (People tend to argue about this kind of thing.) j. One possible justificatio ...
Camelopardalis-Better-Know-A-Constellation
... reveal many of these regions that seem to take on likeliness to M33. Three supernovae have been spotted in this galaxy, one in 1954 (SN 1954J) with the others, a half a century later in 2002 (SN 2002kg) and in 2004 (SN 2004DJ). ...
... reveal many of these regions that seem to take on likeliness to M33. Three supernovae have been spotted in this galaxy, one in 1954 (SN 1954J) with the others, a half a century later in 2002 (SN 2002kg) and in 2004 (SN 2004DJ). ...
The Universe and Galaxies - West Jefferson Local Schools
... light travels in one year 1 light year = 9.5x1015m light travels at 3.0x108m/s ...
... light travels in one year 1 light year = 9.5x1015m light travels at 3.0x108m/s ...
Stellar Evolution II
... before collapsing to form stars – very massive stars are rare • Stars with masses above 50 MSUN are unstable – nuclear reactions in their core produce energy at such a fast rate that they blow off their outer layers, losing mass. ...
... before collapsing to form stars – very massive stars are rare • Stars with masses above 50 MSUN are unstable – nuclear reactions in their core produce energy at such a fast rate that they blow off their outer layers, losing mass. ...
here
... Distances measured in fractions of a parsec usually involve objects within a single star system. So, for example: ...
... Distances measured in fractions of a parsec usually involve objects within a single star system. So, for example: ...
Structure of the solar system
... Be A Fine Girl/Guy Kiss Me”. The systems is based on the surface temperature of the star. O ≥ 30,000 K blue (most massive) B 10,000–30,000 K blue to blue white A 7,500–10,000 K white F 6,000–7,500 K yellowish white G 5,200–6,000 K yellow K 3,700–5,200 K orange M ≤ 3,700 K red (least massive) Our sta ...
... Be A Fine Girl/Guy Kiss Me”. The systems is based on the surface temperature of the star. O ≥ 30,000 K blue (most massive) B 10,000–30,000 K blue to blue white A 7,500–10,000 K white F 6,000–7,500 K yellowish white G 5,200–6,000 K yellow K 3,700–5,200 K orange M ≤ 3,700 K red (least massive) Our sta ...
seasons
... indirect way. The sun is very low in the sky, near the horizon where the sky seems to touch the Earth. Shadows are very long. In the winter, the sun is always low in the sky. The winter sun’s indirect light has very little heating effect upon us. Also the sun can be in the sky for as little as nine ...
... indirect way. The sun is very low in the sky, near the horizon where the sky seems to touch the Earth. Shadows are very long. In the winter, the sun is always low in the sky. The winter sun’s indirect light has very little heating effect upon us. Also the sun can be in the sky for as little as nine ...
May 2015 - Hermanus Astronomy
... Our Sun came late to the Milky Way's star birth party 10 April: In one of the most comprehensive multi-observatory galaxy surveys yet, astronomers find that galaxies like our Milky Way underwent a stellar ‘baby boom’, churning out stars at a prodigious rate, about 30 times faster than today. Our Su ...
... Our Sun came late to the Milky Way's star birth party 10 April: In one of the most comprehensive multi-observatory galaxy surveys yet, astronomers find that galaxies like our Milky Way underwent a stellar ‘baby boom’, churning out stars at a prodigious rate, about 30 times faster than today. Our Su ...
14 Things You Didn`t Know About How the Sun Will Die
... 6. The dying star isn't completely dead yet, however. Gravity pushes shells of hydrogen and helium to densities where nuclear fusion can begin, and they are ignited, albeit for a short time. When this happens with the Sun, it will briefly be 2,100 times brighter than we see it now. 7. Some 7 or 8 bi ...
... 6. The dying star isn't completely dead yet, however. Gravity pushes shells of hydrogen and helium to densities where nuclear fusion can begin, and they are ignited, albeit for a short time. When this happens with the Sun, it will briefly be 2,100 times brighter than we see it now. 7. Some 7 or 8 bi ...
Powerpoint - Astronomy at Swarthmore College
... One important aspect of this project was creating a way to visualize the results of these simulations. Below are color contour plots of temperature, material density, speed, and a representation of the magnetic field, all of which are data that are included in the output files of the simulations. In ...
... One important aspect of this project was creating a way to visualize the results of these simulations. Below are color contour plots of temperature, material density, speed, and a representation of the magnetic field, all of which are data that are included in the output files of the simulations. In ...
Unit 7 Astronomy
... Polaris over the course of a night. This is about a ten hour time exposure of the northern sky. The arcs are the paths of the stars circling the North Star (Polaris) in the center. These stars can be seen year-round in the northern sky although their exact location each night will vary throughout th ...
... Polaris over the course of a night. This is about a ten hour time exposure of the northern sky. The arcs are the paths of the stars circling the North Star (Polaris) in the center. These stars can be seen year-round in the northern sky although their exact location each night will vary throughout th ...
Powerpoint file
... If we leave out fi and fc (i.e. assume they are unity—all life forms develop our kind of intelligence and technology and try to communicate), we are calculating the number of life-bearing planets in our Galaxy at any given time (like now). We know there has been life on our planet for 3 billion year ...
... If we leave out fi and fc (i.e. assume they are unity—all life forms develop our kind of intelligence and technology and try to communicate), we are calculating the number of life-bearing planets in our Galaxy at any given time (like now). We know there has been life on our planet for 3 billion year ...
Star formation, feedback and the role of SNe II and SNe Ia in the
... Dwarf spheroidals galaxies of the local group were originally thought to be very similar in their metallicity and star formation histories to the galactic globular clusters, but their star formation history is now known to be much more complex. ...
... Dwarf spheroidals galaxies of the local group were originally thought to be very similar in their metallicity and star formation histories to the galactic globular clusters, but their star formation history is now known to be much more complex. ...
Triangulation Trigonometric Parallax
... understanding the H-R diagram – For stars of a given temperature, the larger the radius, the larger the luminosity – Therefore, as one moves up the H-R diagram, a star’s radius must become bigger – On the other hand, for a given luminosity, the larger the radius, the smaller the temperature – Theref ...
... understanding the H-R diagram – For stars of a given temperature, the larger the radius, the larger the luminosity – Therefore, as one moves up the H-R diagram, a star’s radius must become bigger – On the other hand, for a given luminosity, the larger the radius, the smaller the temperature – Theref ...
How Old is the Universe?
... 271, 957) apply this technique to globular clusters and find that the age of the Universe is greater than 12.07 Gyr with 95% confidence. They say the age is proportional to one over the luminosity of the RR Lyra stars which are used to determine the distances to globular clusters. Chaboyer (1997) gi ...
... 271, 957) apply this technique to globular clusters and find that the age of the Universe is greater than 12.07 Gyr with 95% confidence. They say the age is proportional to one over the luminosity of the RR Lyra stars which are used to determine the distances to globular clusters. Chaboyer (1997) gi ...
Study Guide for 1ST Astronomy Exam
... o Describe the eventual fate of all stars Unit 50: The Sun’s Source of Power (50.2) Describe, in an essay, how the Sun produces energy by o describing the Net proton-proton chain reaction, o defining the symbols in the reaction, o stating the origin of the symbols in the reaction, o describe the p ...
... o Describe the eventual fate of all stars Unit 50: The Sun’s Source of Power (50.2) Describe, in an essay, how the Sun produces energy by o describing the Net proton-proton chain reaction, o defining the symbols in the reaction, o stating the origin of the symbols in the reaction, o describe the p ...
1 Astronomical Measurements and Quantities 2 Astronomical Objects
... Galaxies: Morphological classification. Main properties: luminosity and size, colors, spectra. Luminosity function. Tully-Fisher and Faber-Jackson relations. Structure and surface brightness profiles. Dynamics: rotation velocity and pressure supported objects. Galaxy properties and environment: clus ...
... Galaxies: Morphological classification. Main properties: luminosity and size, colors, spectra. Luminosity function. Tully-Fisher and Faber-Jackson relations. Structure and surface brightness profiles. Dynamics: rotation velocity and pressure supported objects. Galaxy properties and environment: clus ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.