ASTRONOMY 5

THIRD HOUR SESSION “C”

NAME

 

 

 

 

 

 

ACTIVITY:  Constellation Charts: Part II – Ecliptic, Seasons, Precession

DATE

 

ID#

 

1.   What are the Right Ascension and Declination coordinates for the star ________________?

 

 

2.   Other than stars, name three other types of celestial objects plotted on the charts.

 

 

 

 

3.   From the chart legends, what type of star is _________________ and what is its magnitude?

 

 

 

 

4.   Name three constellations found on the ecliptic.

 

 

 

 

5.   Which constellation will the Sun occupy during the next _______ ? And for the ________ that follows this ________ , which constellation will the Sun occupy?

 

 

6.         Which constellation does the Sun occupy on the date of _________________ ?

 

7.   Near what line should you find the Moon or the planets?

 

8.   Other than the Sun, which very bright stars are  near the meridian at noon  on __________?

 

 

9.   For an object located at the following coordinates:______________, can you see this object in the evening or morning sky on _____________________?

 

10. If _____________ is in opposition on_______________, what constellation does it occupy?

 

 

10. Examine the small segments of the SC001 star charts below.  The segment on the left is from a chart of epoch 1925.  The one on the right is set for epoch 2000, like the one you currently have.  What is the Bayer designation of the star indicated on the ’1925’ map?  How much did this star’s position change in 75 years (degrees)?  What phenomenon accounts for this change in location?

 

 

 

 

11. From your estimated amount of movement of the star in #10, calculate the period of one complete cycle of the phenomenon causing this star change in position. 

 

12.  In what year was the star Thuban considered the North Polar Star?