Astronomy Lab Project 2 PDF

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Summary

This is a completed template of the project 2. This has the relevant pictures required to complete this experiment as well as steps to complete the experiment. It has the calculations and explanations completed in depth and all the work has been described in detail. ...

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NAME:______ ________ Astronomy Lab Project 2 – Sunset Motions This is a template for your Project 2 report. You should edit this document in a text editor (Word or similar) and add more space as needed. You will need to add edited versions of some of your photos for some questions, but remember to upload your UNEDITED photos separately to Moodle. Finally, be sure to describe all your work and show all of your calculations fully and in detail. (1) What are the angular dimensions (length and width) of your zoomed-out photo? If you used a different camera from Project 1, explain in detail how you determined the field of view, specify what method you used (pixels, printing the photo, etc.), and show all of your work/calculations.

1. I calculated the degree per pixel by standing approximately 4 meters away from the screen that projected a grid and used my thumb to measure how many fingers were required for 1,3 and 5 degrees. 2. After setting a standard for the degrees per grid box, from the same distance I took two picture using my Iphone 6s one zoomed in and another zoomed out. 3. Now using approximation, the with of the zoomed out photo using the grids and estimating if the grid stretched out to the whole picture, I determined the width to be 58 degrees and the length to be 64 degrees. 4. In terms of fingers, a thumb approximated to 2 degrees and a fist approximated to 10 degrees.

(2) What Date & Time did you take your pictures on? Picture 1: 11th November , 2018 - 4:18pm Picture 2: 4th December 2018 - 3:20pm Picture 3: 4th December 2018 – 4:15pm

(3) What is the Sun’s azimuth in each picture? Explain how you found it. Picture 1: 244 Picture 2: 229 Picture 3: 239 (4) In the space below, place an edited version of your first sunset/sunrise picture showing the direction of true West or East. Explain how you determined its location. -

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This picture was taken on the 23rd floor of the W.E.B. Dub Bois library on the 23rd floor. The picture was taken from the window facing the recreation center of the campus during sunset. The azimuth according to this pictures based on the same date and time from stellarium was +244. To figure out the location of due west, I knew that due west has an azimuth of West was 270 degrees and that 270 – 244 would provide the location of the away from west. Therefore, the sun is 26 degrees from due West.

(5) What is the rate of change in the azimuth of the Sun per day (i.e. degrees/day)? Explain in detail and show all of your work/calculations. -

To calculate the rate of change in the azimuth, the following formula must be used: Azimuth of the first sunset −Azimuth of the second sunset Number of days between the two pictures taken

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244 −239 23

= 0.2739

(6) What is the change in the time of sunset (or sunrise) per day (i.e. minutes/day)? Explain in detail and show all of your work/calculations. -

To calculate the change in time per day of sunset, the following formula can be used:

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Time of the first sunset −Time of the second sunset Number of days between the two pictures taken 4 :18 −4 :15 =¿ 3 = 0.1304 23 23

(7) Using the two pictures taken on the same day, find the angle away from vertical at which the Sun is setting (or rising, if sunrise was used)? Marked-up versions of your pictures will help illustrate your estimate. Explain in detail and show all of your work/calculations. -

This is a sunset picture taken 1 hour before actual sunset time. To find the angle away from the vertical from which the sun sets, I compared both pictures and approximately market the sun set on the picture 1 hour before. Then, I drew a triangle from the sun 1 hour before to the point of the sunset and calculated the distance in degrees by overlapping the picture of the grid taken in class. 12 adjecent ¿=¿ =¿54.69 degerees . After that I used tan^-1( hypoteneus 8.5...