This seems a very uninteresting picture: it contains no more than one tiny white
spot in the center of a black square! That spot, however, stands- for the whole
solar system, which on this scale would be only little more than 0.1 millimeter in
diameter. In reality this illustration therefore is a very interesting one, because
we now know and understand that that little speck of light contains not only
the sun, but with it, all the planets, comets, asteroids, and meteorites which move
around it . . . and their orbits! And we now realize that it is quite possible
that numberless other stars that we see at night may have such satellites moving
around them. All other stars that could be seen besides our sun are still
left out, as our aim is primarily to show our own "immediate surroundings."
Light, on this scale, would travel 9.46 centimeters, or about 4 inches, in a year.
1 cm. in picture = 1017 cm. 1 light-year = 9.46 cm. ||Scale = 1:1017|