As we shall see (Section 5 and 6), MOND was constructed to predict a relation
for a
point mass
(however, note that the slope of 4 is a pure consequence of the acceleration base; it is not
possible to get an arbitrary slope from such an idea). Since spiral galaxies are not point masses, but rather
flattened mass distributions that rotate faster than the equivalent spherical mass distribution [52
], the empirical
acceleration
is close to but not identical to
in MOND. The geometric correction is about 20% so that
[272
].