Vital Statistics Its our home Contains more than 200 billion stars and a mass of 10 12 suns Its almost as old as the Universe itself 137 billion years old Structure The core and spiral arms are of different ID: 612062 Download Presentation
Lec21: The Milky Way The Milky Way GalaxyLecture 21APOD Lec21: The Milky WayAtomic, molecular, and ionized gas Lec. 21: The Milky Way21 -2 Lec21: The Milky Way
William Herschel’s map of the Milky Way based on star counts. In the early 1800’s William Herschel, the man who discovered the planet Uranus, tried to understand the shape of the Milky Way by counting stars. He counted how many stars there were in each of dozens of different directions and then plotted the count versus direction. .
Our Place Within It. . . The Visible Milky Way. The Milky Way as Seen From Texas. (from Canada, we can. ’. t see the Southern Cross). The Obvious Questions. How big is the Milky Way, and where are we located? At the .
bye:. Angelina Battle. The legend of The Milky Way. This is what old people told me when I was a child. Long ago, when the world was new, there were not many stars in the sky. In those days people depended on corn for their food. They would grind it and keep it in bins behind their homes. Bread made from cornmeal, often kept them from starving during the long winter months. .
The Milky Way: Our Home Galaxy. What are the different. components of the Milky Way?. How do we see those components?. What does a map of each component look like from our point of view?. Stars in the Milky Way.
Contains more than 100 billion stars. Is one of the two largest among 40 galaxies in the Local Group. Our Solar System is located a little more than half way from the galactic center to the edge of the galactic disk..
Here’s the mystery story we’ll unfold…. Fuzzy blobs in the sky – new solar systems, or “galaxies”?. Observational tests. Herschel’s map of the “universe” . (what we today know as just our Galaxy).
Recap. Canvas homework: due on Wednesday. Lab this week: Galaxy Morphology. Campus Observatory. Milky Way galaxy. Stars: . brightnesses. , masses, sizes, compositions, evolution. Interstellar matter: gas, dust.
Spiral Structure. . The Astronomical Context. By the 1920’s, we knew that the once-mysterious spiral nebulae were flattened galaxies. . Our Milky . Way is . also. flattened. . Two obvious . questions arose:.
The route traces the three day battle in chron logi cal order It is 64258exible enough to allow you to include or skip cer tain points andor stops based on your interest Allow a minimum of three hours to complete the tour July 1 1863 McPherson Ridge
