Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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1ous rayes, nor can this their inadvertency be excuſed, in regard
that
it was in their power to have beheld them at their pleaſure
without
thoſe treſſes, which is done, by looking upon them at
their
firſt appearance in the evening, or their laſt occultation in

the
comming on of day; and if none of the reſt, yet Venus,
which
oft times is ſeen at noon day, ſo ſmall, that one muſt
pen
the ſight in diſcerning it; and again, in the following night,
ſeemeth
a great flake of light, might advertiſe them of their
lacy
; for I will not believe that they thought the true Diſcus to
be
that which is ſeen in the obſcureſt darkneſſes, and not that
which
is diſcerned in the luminous Medium: for our lights, which
ſeen
by night afar off appear great, and neer at hand ſhew their
true
luſtre to be terminate and ſmall, might have eaſily have
made
them cautious; nay, if I may freely ſpeak my thoughts, I
abſolutely
believe that none of them, no not Tycho himſelf, ſo
accurate
in handling Aſtronomical Inſtruments, and that ſo great
and
accurate, without ſparing very great coſt in their
ction
, did ever go about to take and meaſure the apparent
meter
of any Star, the Sun and Moon excepted; but I think,
that
arbitrarily, and as we ſay, with the eye, ſome one of the
more
antient of them pronounced the thing to be ſo and ſo, and
that
all that followed him afterwards, without more ado, kept
cloſe
to what the firſt had ſaid; for if any one of them had
plied
himſelf to have made ſome new proof of the ſame, he would
doubtleſſe
have diſcovered the fraud.
A common
rour
of all the
ſtronomers
,
ing
the magnitude
of
the ſtars.
Venus renders the
errour
of
mers
in
ing
the magnitudes
of
ſtars
ble
.

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