Stars and galaxies
[DOC File]Astronomy 105 – Stars and Galaxies
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Massive stars burn their nuclear fuel faster than lower mass stars and leave the main sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less massive stars remaining on …
[DOC File]Astronomy 105 – Stars and Galaxies
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Astronomy 105 – Stars and Galaxies - Viewing the Sky. Name _____ Date_____ Time_____ On a clear night with no Moon, find a dark (but safe) spot where you have a good view of the northern sky. Locate the Big Dipper, and using a sky chart, find the Pole Star. Make a sketch below of the Pole Star, the horizon, and at least three constellations ...
[DOC File]Astronomy 105 – Stars and Galaxies
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Astronomy 105 – Stars and Galaxies - Stellar Spectra. Name_____ Form into groups of four to work together. In the envelope, you will find spectra of more than 50 different stars on strips of paper. These spectra are taken in blue light, using a black and white photographic emulsion. The emulsion works like a film negative, so that bright ...
[DOC File]Sun-Earth Connections: Resources
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Education Resources on Stars and Galaxies at LPI. We will place today’s powerpoints onto our Web site so that you may access them for yourselves. Feel free to download and share with other teachers. Downloading the powerpoints will give you access to the notes for each slide—we have included comments, resources, and Web sites in the note ...
[DOC File]A105 –Stars and Galaxies
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A105 Stars and Galaxies: Planets around Other Stars. Name _____ Reproduced below is a plot of observations of the radial velocity of the star 51 Pegasi, the first star discovered to have a planet. The observed velocity (in meters per second) is plotted vs. the time (in days) when the observation was made. The velocity of the star varies with ...
[DOC File]Universe, Galaxies, Solar System
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of stars in galaxies, and . billions. of galaxies in the universe. Just like stars are grouped together in galaxies, galaxies are grouped together in clusters. What is a Cluster? A cluster is a group of similar items in a given area. The cluster our galaxy belongs to is called the . Local Group. Types of Galaxies - There are . three main types ...
[DOC File]Chapter 19: Stars, Galaxies, and the Universe
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A galaxy is a collection of stars, dust, and gas held together by gravity. Types of Galaxies. Spiral Galaxies have a bulge at the center and spiral arms. The Milky Way Astronomers think that our solar system is in a spiral galaxy. Elliptical Galaxies About one-third of all galaxies are simply massive blobs of stars. These are called elliptical ...
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