[dr_lew]

In case you don’t know, if you draw a circle with a compass on an 8X11 sheet of paper, the shape of earth’s orbit will easily lie within the pencil line of that circle.

... so let’s not sell Ptolemy short! ... and I mean that sincerely.

[JRandomFreeper]

Terra's orbit... roughly 16 light minutes, reduced to 8". I'm going to call that 2 light minutes per inch. My pencil uses 0.5 lead(which is graphite). And it's unit of measure is mm, so convert back to imperial, and you get 0.019685 inches for the pencil line width.

So... 0.019685(2*60*C)... yeah. that's a wide line.

Cook math. It's all I got.

/johnny