Mathematics and Society - OS X Lion Server

NUM££ZCAL I1ATA1. Cons tants11 ""3.14165speed of light"'" 300,000 km/s or 3 x 10km/s8astronomical unit (a.u.) ~150,OOO,OOO km or 1.5 x 1012light year ~9,500,OOO,OOO,OOOkm or 9.5 x 10kmkm1 circle contains 360 degrees (360°)1° contains 60 minutes of arc (60')l' contains 60 seconds of arc (60")1 mile ~ 1. 61 kilometresII.Data for the PlanetsAverage distance from Average distance fromPlanet Symbol the sun in a. u. the sun in km Diameter in kmMercury ~.39 57,900,000 4,878Venus~.72 108,200,000 12,112Earth $ 1.00 149,600,000 12,756Mars if 1.52 227,900,000 6,800Jupiter2+5.20 778,000,000 143,000Saturn "f29.54 1,427,000,000 121,000Uranus .. 19.18 2,870,000,000 47,000~Neptune 30,06 4,497,000,000 45,000WPlutot239.52 5,912,000,000 "'6,000III.Diameter of the sun 1,392,000 kmDiameter of the moon 3.476 kmAverage distance from the earth to the moon 384,400 kmData from Exploration of the Universe, 3rd ed.125