PPT-Galaxies and the Universe

The Milky Way Galaxy When you look into the hazy band of light across the sky you are actually looking at our galaxy from the inside While an awesome sight you can only truly begin to see it if you get away from city lights on a moonless night . Modern Cosmology. Look at your thumb.. The matter in it was present in the fiery beginning of the universe. . . Cosmology. , the study of the universe as a whole, can tell you where your matter came from and where it is going. . Lecture 3; April . 11 2013. Previously.. On Astro-2. The universe is much larger than the Milky Way (Gpc vs kpc). There are billion of galaxies, the Milky Way is average Joe galaxy. Most galaxies can be classified based on their appearance as . http://www.pa.uky.edu. I will add 5 points on your final exam if you complete the evaluation.. Edwin Hubble’s next project.. Having established in 1925 that galaxies were not in the Milky Way, Hubble used the Mt Wilson telescope to obtain spectra of galaxies.. Physicist and communicator at CERN. The dark side of the Universe. Shrimp Nebula. ©. VLT, European Space Observatory. Convince you all of the existence of dark matter. Review how one can catch dark matter. Universe. Imagine that you find a star with an unknown distance, but you notice that it has a distinctive characteristic that tells you that it is a specific type of star. And let’s imagine that all stars of that type have the same luminosity, and you happen to know the value of that luminosity. You can then estimate the distance for the star you found from the inverse square law of light:. Physicist and communicator at CERN. The dark side of the Universe. Shrimp Nebula. ©. VLT, European Space Observatory. Convince you all of the existence of dark matter. Review how one can catch dark matter. Lecture 2; . April 9 2013. Previously.. On Astro-2. The goal of cosmology is to understand how the universe formed and evolved.. How can we build a theory of the universe valid at all times in every place? . The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. Chapter 2. Stars. Section 1 Vocabulary. Spectrum. Apparent Magnitude. Absolute Magnitude. Light-Year. Parallax. Color of Stars. Red and Yellow. Cool. Blue . Warm. Blue flame hotter than yellow flame. The Hubble Deep Field. 10 day exposure –field located in the Big Dipper. Edwin Hubble. Edwin . Hubble. Hubble’s Galaxy Classification . Spiral Galaxies. galaxies like the Milky Way with arcing structures lying in a plane and emanating from the nuclear bulge. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. Chapter 21. How does distance affect an image?. Telescope- device that makes an object in the sky appear closer.. Revolutionized astronomy (study of space)- allowed them to see objects in space for first time.. The expanding Universe. Recap. Milky . Way. Distances in the Milky Way: our Galaxy is very large. Other galaxies. Galaxy . properties. Morphology: spiral and elliptical galaxies, spirals can appear different depending on viewing .