Kudos to the two physicists who plotted all objects in the Universe onto a single 2D plot, most of all for the breadth of their ambition, but also for planting their tongue firmly in cheek with a tiny, sub-Planckian-sized quip:

Humans are represented by a mass of 70 kg and a radius of 50 cm (we assume sphericity), while whales are represented by a mass of 10^5 kg and a radius of 7m.

Someone please update Wikipedia! (ᔥJason Kottke)