David Book

Tau Cetan adj.	1971 G. Benford & D. Book Sky Color in Natural History Feb. 33/2 The colors we see in our sky—or might see in Tau Ceti I’s sky, were we to go there—stem from a number of different physical effects taking place within the gases of the air. And the color we see depends on our eyes; Tau Cetan eyes might not be adapted for viewing terrestrial skies or human eyes for viewing theirs. The human eye is, after all, a very specialized organ.