Physics 3: Intro To Astronomy Homework 1: Due September 25 31 points total The N
ID: 1884905 • Letter: P
Question
Physics 3: Intro To Astronomy Homework 1: Due September 25 31 points total The Night Sky Imagine you are the observer shown on Earth in the Northern Herní plete and that the tine b 6pm. Looking north the sky will appear as shown in the figure bekow on the left. The positkons and motions of the stars in the figure on the left can be understood by imagining yourself as the observer at the center of the celestial sphere as shown in the figure on the right. In the celestial sphere model, the Earth is stationary and the stars are carried on a sphere that rotates about an axis that points at the North Star. Note that only the portion of the celestial sphere that is above your horizon is shown. Celestial Sphere Rotation Path of Star 1 -Celestial Sphere Path of Star A North Star Earth's North Star llorizon Celestial Sphere Rotation The x's in both figures represent four positions through which Star B will pass during the course of one rotation of the celestial sphere. l) Note that in the figure on the left the position of Star B at 6pm has been identified for you. What number position for the figure on the right corresponds to the ideutified location of Star B at 6pm provided for the figure on the left? (2 points)Explanation / Answer
If you raise your head while looking towards the north pole you will (according to the left picture) reach point 1. Same happens if you lower your head you will reach point marked in as 6PM.
Now on to the right side of the image follow the same analogy and you can see that the point that represents star B at 6 PM is at 3.