Astonomy homework help

1. How many arc-seconds are in a complete circle? Enter your answer using scientific notation and round your answer to three significant digits. For example,

314.15927 = 3.14  102 and you would type ‘3.14 EE 2’

2. How far in kilometers must you view a penny (having a diameter of 1 centimeter) if the penny has an angular size of 1 arc-second? Hint: There are 100,000 cm in 1 km. The angular-size formula is in the book and also in the slides from the second day of class. Round your answer to three significant digits. For example, 3.1415927 km = 3.14 km.

3. On the Cosmic Calendar, what day was the Earth formed?

4. What is the altitude of Polaris as seen from Erie PA, in degrees?

5. What is the azimuth or compass angle of Polaris as seen from Erie PA, in degrees?

6. What is the declination of Polaris as seen from Erie PA, in degrees?