Semimajor axis in A.U. | Actual Diameter in km | # of steps if Mercury were one step from sun | Scale diameter if earth were 12" globe | Scale distance if earth were 12" globe | Scale diameter if earth were 6 foot globe | Scale distance from Sun if Earth were 6 foot globe | Scale distance from 6' Earth Globe in Abrams planetarium lobby | Location from Abrams' Earth globe in lobby | |
Sun | - | 1,392,000 | - | 109 feet | - | 655 feet | - | 13.3 miles | Dimondale, MI |
Mercury | 0.387 | 4879 | 1 | 4½ inches | ¾ miles- | 2¼ feet | 5 miles | 8.3 to 18 miles | - |
Venus | 0.723 | 12,104 | 2 | 11½ inches | 1½ miles | 5¾ | 9.6 miles | 3.7 to 23 miles | State Capitol Building |
Earth | 1 | 12,756 | 3 | 1 foot | 2¼ miles | 6 feet | 13.3 miles | 0 | Planetarium Lobby |
Mars | 1.524 | 6794 | 4 | 6½ inches | 3½ miles | 3¼ feet | 21.3 miles | 8 to 35 miles | Williamston, MI |
Asteroids | - | - | - | - | - | - | - | - | - |
Jupiter | 5.203 | 142,980 | 13 | 11¼ feet | 11½ miles | 67¼ feet | 69.3 miles | 56 to 83 miles | Detroit |
Saturn | 9.555 | 120,540 | 25 | 9½ feet | 21¼ miles | 56¾ feet | 127 miles | 114 to 140 miles | Chicago |
Uranus | 19.218 | 51,120 | 50 | 4 feet | 42¾ miles | 24 feet | 256 miles | 243 to 270 miles | Pittsburgh |
Neptune | 30.11 | 49,530 | 78 | 4 feet | 67 miles | 23¼ feet | 400 miles | 387 to 413 miles | Washington DC |
Pluto | 40 | 2300 | 102 | 2 inches | 88 miles | 1 foot | 527 miles | - | Cape Cod |
Eris | 68 | 2400 | - | 2¼ inches | 153 miles | 1¼ feet | 900 miles | - | - |
Sedna | 525 | ~2200 | - | - | 1181 miles | - | 7000 miles | - | Japan |
Alpha Centauri | 271,936 A.U. | - | - | - | 612,000 miles | - | 3,616,757 miles | - | 145 times around the world or to the moon and back 8 times |
Map of inner solar system to scale to the Earth globe in Abrams Planetarium lobby.
Map of outer solar system to scale to the Earth globe in Abrams Planetarium lobby.
Directions to Azimuth converter wheel: