each word as they apply to astronomy Figure 21 Use this graph to answer

# Each word as they apply to astronomy figure 21 use

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each word as they apply to astronomy . Figure 2.1 Use this graph to answer questions 6 and 7. 06. (1 pt) Because the graph on page 52 (Working It Out 3.1 of the text) has its y - and x -axes in logarithmic form, you might find it hard to figure out the answer if you were given an orbital period and had to find the distance of the planet, or had the distance and wanted the orbital period. An easier method is to use the graph in Figure 2.1 shown here. Imagine you discover a new solar system object that has an orbital period of 250 years. What is its approximate distance? Distance for new object = ________ AUs. 07. (1 pt) Based on some other observations, you find that the distance from the Sun to a newly discovered dwarf planet in the Solar System is 47.5 astronomical units (AU’s). What is its approximate orbital period in Earth years? Orbital period for new object in solar system = _________ years 2
Figure 2.2 Motion of a planet in an elliptical orbit. 08. (5 pts) Figure 2.2 gives an example of Kepler’s first and second laws. The planet’s orbit is the solid-line ellipse, with the arrow indicating the direction of its motion. Locate the following using identification letters A – F. Focus _____ Semi-major axis _____ Center _____ Where planet will be moving the fastest. _____ Where planet will be moving the slowest. _____ Minor axis _____ 09. (3 pts) Shown below are actual images of the continuous phases of Venus, much like Galileo sketched long ago. These images eventually provided the evidence that disproved the Ptolemaic model of Venus orbiting the Earth. What is it about these phases ( apparent sizes and phases ) that convinced Galileo that Copernicus was right?

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