Last Updated：2025/12/29
Sentence
Thus
she
[one
of
the
moons
of
Mars]
has
a
disc,
always
on
this
assumption
be
it
remembered,
equal
to
about
a
quarter
of
our
moon's;
and
being
illuminated
by
the
sun,
like
the
other
moon,
with
a
light
varying
from
one-half
to
one-third
that
which
he
pours
on
the
earth,
it
follows
that
the
light
she
reflects
to
Martians,
or
would
reflect
to
them
if
there
were
any
such
beings,
varies
from
one-eighth
to
one-twelfth
of
that
which
we
receive
from
the
full
moon.
Quizzes for review
Thus she [one of the moons of Mars] has a disc, always on this assumption be it remembered, equal to about a quarter of our moon's; and being illuminated by the sun, like the other moon, with a light varying from one-half to one-third that which he pours on the earth, it follows that the light she reflects to Martians, or would reflect to them if there were any such beings, varies from one-eighth to one-twelfth of that which we receive from the full moon.
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