3. Real Distances to Real Objects From here on out, all numbers larger than 1000
ID: 3507215 • Letter: 3
Question
3. Real Distances to Real Objects From here on out, all numbers larger than 1000 must be put into powers-of-ten notation, keeping only the first three digits (rounding the last), and the power. Thus, if your calculator says something is 12,895,558,547,884.56, that’s not what you would write. You would write 1.29 × 1013 . Open up your textbook to the appendix and find the bulk size scales of the planets. You are looking for the average distances between each of the planets and the Sun. Note that 10 kilometers is 6.2 miles. Also note that a parsec is 206,265 AU. Also, note that there are only three nations in the world that still use miles/feet/inches/pounds: the USA, Liberia and Burma. Therefore, this is the last time you’ll see miles in this class. So, just for your edification, 93,000,000 miles equals 150,000,000 kilometers (km).
Average Distances in various units from the Sun:
Object Kilometers Astronomical Units parsecs
Mercury
Venus
Earth 1.50 × 108 km 1 AU 4.85 × 106 pc
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Proxima Centauri
Sirius
Explanation / Answer
Object Kilometers Astronomical Units parsecs
Mercury 0.58 × 108 km 0.39 AU 1.9 × 106 pc
Venus 1.08 × 108 km 0.723 AU 3.5 × 106 pc
Earth 1.50 × 108 km 1 AU 4.85 × 106 pc
Mars 2.28 × 108 km 1.524 AU 7.27 × 106 pc
Jupiter 7.78 × 108 km 5.203 AU 2.52 × 105 pc
Saturn 14.27 × 108 km 9.539 AU 4.62 × 105 pc
Uranus 28.69 × 108 km 19.18 AU 9.3 × 105 pc
Neptune 44.96 × 108 km 30.06 AU 14.57 × 105 pc
Pluto 59.13 × 109 km 39.53 AU 19.16 × 105 pc
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.