ogether, the star
Alpha of the Dragon, which was the pole-star of the period, had that
precise position with respect to the true pole of the heavens which is
indicated by the slope of the long passage extending downwards aslant
from the northern face of the Great Pyramid; that is to say, when due
north below the pole (or at what is technically called its sub-polar
meridional passage) the pole-star of the period shone directly down that
long passage, and I doubt not could be seen not only when it came to
that position during the night, but also when it came there during the
day-time.
But some other singular relations are to be noted in connection with the
particular epoch I have indicated.
It is tolerably clear that in imagining figures of certain objects in
the heavens, the early observers would not be apt to picture these
objects in unusual positions. A group of stars may form a figure so
closely resembling that of a familiar object that even a wrong position
would not prevent the resemblance from being noticed, as for instance
the 'Chair,' the 'Plough,' and so forth. But such cases are not
numerous; indeed, to say the truth, one must 'make believe a good deal'
to see resemblance between the star-groups and _most_ of the
constellation-figures, even under the most favourable conditions. When
there is no very close resemblance, as is the case with all the large
constellations, position must have counted for something in determining
the association between a star-group and a known object.
Now the constellations north of the equator assume so many and such
various positions that this special consideration does not apply very
forcibly to them. But those south of the equator are only seen above the
southern horizon, and change little in position during their progress
from east to west of the south point. The lower down they are the less
they change in position. And the very lowest--such as those were, for
instance, which I have been considering in determining the position of
the southern pole--are only fully visible when due south. They must,
then, in all probability, have stood upright or in their natural
position when so placed, for if they were not rightly placed then they
only were so when below the horizon and consequently invisible.
Let us, then, inquire what was the position of the southernmost
constellations when fully seen above the southern horizon at midnight.
The Centaur stood then as he does now, uprig
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