88 modern constellations by area
Delporte drew the borders along vertical and horizontal lines of right ascension and declination; however, he did so for the epoch B1875.0, which means that due to precession of the equinoxes, the borders on a modern star map (e.g., for epoch J2000) are already somewhat distorted and no longer perfectly vertical or horizontal.  This distortion will increase over the centuries to come. However, this does not change the solid angle of any constellation.