By Michael A. Seeds, Dana Backman
With their best-selling astronomy textbook, ASTRONOMY: THE sun approach AND past , authors Mike Seeds and Dana Backman assist you comprehend your house within the universe-not simply your place in house, yet your position within the unfolding background of the actual universe. to accomplish this aim, the authors concentrate on primary questions: "What Are We?," which highlights your home as a planet dweller in an evolving universe, guiding you to raised comprehend the place we got here from and the way we shaped, and "How will we Know?," which gives insights into how the method of technological know-how can train us extra approximately what we're. every one new reproduction of the textual content comprises entry to digital Astronomy Labs, a web, interactive approach so you might discover astronomy out of your personal computing device.
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Additional resources for Astronomy: The Solar System and Beyond
When you think of evidence, you probably think of criminal investigations in which detectives collect ﬁngerprints and eyewitness accounts. In court, that evidence is used to try to understand the crime, but there is a key difference in how lawyers and scientists use evidence. A defense attorney can call a witness and intentionally fail to ask a question that would reveal evidence harmful to the defendant. In contrast, the scientist must be objective and not ignore any known evidence. The attorney is presenting only one side of the case, but the scientist is searching for the truth.
This both identifies the star and the constellation and gives a clue to the relative brightness of the star. 12 PART 1 | THE SKY Figure 2-3 You see the Big Dipper in the sky because you are looking through a group of stars scattered through space at different distances from Earth. You see them as if they were projected on a screen, and they form the shape of the Dipper. th ed on oject rs p r a t S Nearest star e sky Farthest star Actual distribution of stars in space Earth The brighter stars in a constellation are usually given Greek letters in order of decreasing brightness.
Circumpolar constellations near the south celestial pole never rise as seen from mid-northern latitudes. From a high latitude such as Norway, you would have more circumpolar constellations, and from Quito, Ecuador, located on Earth’s equator, you would have no circumpolar constellations at all. ” 2-1 Scientific Models How can a scientiﬁc model be useful if it isn’t entirely true? A scientiﬁc model is a carefully devised conception of how something works, a framework that helps scientists think about some aspect of nature, just as the celestial sphere helps astronomers think about the motions of the sky.