Cetus (the Whale or Sea Monster),
is seen from John Flamsteed's Atlas Coelestis, edition 1721.
The celestial equator runs from left to right just above center
below Cetus's head. The famed variable star Mira (Omicron Ceti)
is in the center of the Whale's neck. See full resolution.
Courtesy of the Rare Book Room and Special Collections Library of the University of Illinois