An original theory or new hypothesis of the universe: $b founded upon the laws of nature, and solving by mathematical principles the general phænomena of the visible creation; and particularly the via lactea ...Wright, Thomas
Philosophy
An original theory or new hypothesis of the universe: $b founded upon the laws of nature, and solving by mathematical principles the general phænomena of the visible creation; and particularly the via lactea ...
Wright, Thomas
Astronomy -- Early works to 1800
But to bring this Image a little lower, and as near as possible
level to every Capacity, I mean such as cannot conceive this kind of
continued Zodiac, let us suppose the whole Frame of Nature in the
Form of an artificial Horizon of a Globe, I don't mean to affirm that
it really is so in Fact, but only state the Question thus, to help
your Imagination to conceive more aptly what I would explain[AP].
_Plate_ XXIII. will then represent a just Section of it. Now in this
Space let us imagine all the Stars scattered promiscuously, but at
such an adjusted Distance from one another, as to fill up the whole
Medium with a kind of regular Irregularity of Objects. And next let
us consider what the Consequence would be to an Eye situated near the
Center Point, or any where about the middle Plane, as at the Point A.
Is it not, think you, very evident, that the Stars would there appear
promiscuously dispersed on each Side, and more and more inclining to
Disorder, as the Observer would advance his Station towards either
Surface, and nearer to B or C, but in the Direction of the general
Plane towards H or D, by the continual Approximation of the visual
Rays, crowding together as at H, betwixt the Limits D and G, they must
infallibly terminate in the utmost Confusion. If your Opticks fails
you before you arrive at these external Regions, only imagine how
infinitely greater the Number of Stars would be in those remote Parts,
arising thus from their continual crowding behind one another, as all
other Objects do towards the Horizon Point of their Perspective, which
ends but with Infinity: Thus, all their Rays at last so near uniting,
must meeting in the Eye appear, as almost, in Contact, and form a
perfect Zone of Light; this I take to be the real Case, and the true
Nature of our _Milky Way_, and all the Irregularity we observe in it
at the Earth, I judge to be intirely owing to our Sun's Position in
this great Firmament, and may easily be solved by his Excentricity, and
the Diversity of Motion that may naturally be conceived amongst the
Stars themselves, which may here and there, in different Parts of the
Heavens, occasion a cloudy Knot of Stars, as perhaps at E.
[Illustration: Plate XXI.]
[Illustration: Plate XXII.]
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