How to work out those annoying angle probl

# How to work out those annoying angle probl - How to work...

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How to work out those annoying angle probl ems Here's one that is a bit more confusing - what would the height of an object be if it has a declination of 80º N? If you follow the preceding logic, you'd find that it is 52.5º above the northern horizon. Wait a second, isn't 80º N just 10º away from the North Celestial pole? Yes, 90- 10=80. Okay, so the object is 10° from the North Star, Polaris. That's fine. Now here's the tricky bit - how can you be sure of which side of Polaris the object is at? I hate to admit it, but this is a trick question, since there are actually two correct answers. How is that possible? You remember those stars that never set, circumpolar stars? That means at one time they are found above the North Celestial Pole and at another time they can be found on the other side, or below the North Celestial Pole, since they have to go in a circular path around Polaris. This is shown in Figure 10. I'll try to avoid these kinds of questions, since they are confusing.

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## This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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How to work out those annoying angle probl - How to work...

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