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Name_____________________________________________________ Hour__________ Astronomical Distances Fill out the data table below, measuring the objects using the indicated units Object Distance The The The The The The 1. room from end to end opposite end to end of the room length of your foot width of your foot height up to the ceiling height of the desk Millimeters Meters Meters Millimeters Millimeters Meters Of the six measurements above, which ones made sense to measure in millimeters? 2. Of the six measurements above, which ones made sense to measure in meters? 3. Which of the measurements that you made do you think were the most accurate? Why? 4. Which of the measurements you made do you think were the least accurate? Why? 5. How is using kilometers or meters in space a lot like measuring the room in millimeters? 6. What are the 3 major units we use for measuring objects in space? a. b. c. 6. How far is each measurement? a. b. c. 7. Saturn is 8.53AU away from the earth. How many miles is that? _________________________________________________________ 8. Alpha Centauri, one of our closest stars, is 4.39 light years away from us. How many miles is that? (Write down the math problem if it won’t fit on the calculator) ________________________________________________________ 10. Put the following objects in order from closest to the earth to farthest (1 is closest to Earth, 10 is farthest) ____The sun ____A Galaxy ____The northern lights ____The moon ____An airplane ____The Space Station ____A bald eagle ____The North Star ____ Saturn ____ Mercury 11. Next to each object, write if you would measure the distance in AU, light years (ly), parsecs (p), km (km), or meters (m). ____The sun ____A Galaxy ____The northern lights ____The moon ____An airplane ____The Space Station ____A bald eagle ____The North Star ____ Saturn ____ Mercury We know that light travels 186,282.397 miles per second. How many seconds would it take the light from a camera flash to reach Earth if you were on these planets. (Hint… convert AUs to miles first, then divide by the speed of light!) (1 AU = 9.3x107miles) a) Mars (0.52 AU away) ___________________________________ b) Pluto (38.5AU away) ____________________________________ c) The sun (1AU away)_____________________________________ d) The moon (0.0026AU away) _______________________________ e) Saturn (8.53 AU away) ___________________________________
