locating the north star (polaris)

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Locating the North Star (Polaris). Does the North Star ever change?. The North Star changes because of planetary motion rotation revolution axial precession. The North Star changes because of planetary motion. The North Star changes because of planetary motion. - PowerPoint PPT Presentation

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Page 1: Locating the North Star (Polaris)
Page 2: Locating the North Star (Polaris)
Page 3: Locating the North Star (Polaris)
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Locating the North Star (Polaris)

Page 13: Locating the North Star (Polaris)

Does the North Star ever change?

Page 14: Locating the North Star (Polaris)

The North Star changes because of planetary motion

• rotation• revolution• axial precession

Page 15: Locating the North Star (Polaris)

The North Star changes because of planetary motion

Page 16: Locating the North Star (Polaris)

The North Star changes because of planetary motion

Page 17: Locating the North Star (Polaris)

Does the North Star ever change?

Page 18: Locating the North Star (Polaris)

Fourth planetary motion

Retrograde motion (apparent backward motion of a planet)

Page 19: Locating the North Star (Polaris)

Retrograde motion