Flowers of the SkyProctor, Richard A. (Richard Anthony)
Science
Flowers of the Sky
Proctor, Richard A. (Richard Anthony)
Astronomy
What I now propose to do is to inquire whether we may not find the true
figures and proportions of the ancient constellations in another
way--viz., not by looking for them among the constellations as at
present bounded and figured in our star-maps, but by searching the
heavens themselves for them. This general method of search occurred to
me very long ago while I was preparing various star-atlases, but the
special mode of illustration here adopted occurred to me lately, while
preparing for young astronomers in the United States a series of monthly
maps showing the skies towards the north, south, east, and west, at
different times of the night all the year round, and in various
latitudes within the limits of the States. When I was in America I
noticed, as I travelled about over a tolerably wide range of latitude,
that the varying attitudes assumed by several of the constellations
suggested features of resemblance to different objects. In constructing
maps, simple in appearance, but based in reality on careful
calculations, this characteristic came out more clearly. Adopting a
particular way of presenting the connection between the various stars of
a constellation, I often found the figure suggested which had actually
been associated with the group of stars thus connected. Lastly, the idea
of extending this method to other cases naturally occurred to me, and
some of the results are presented in the present essay.
The method of delineation referred to is simply that of connecting the
stars of a group by lines, _ad libitum_, that is, not merely introducing
so many lines as will connect all the stars into a single set, but where
necessary to complete the delineation of the imagined figure, adding
other lines connecting pairs of stars belonging to the group, yet not so
many that _every_ pair of stars is connected by a line. The lines,
again, need not be straight. On the contrary, where a group of stars
forms a stream, the natural way of joining them is by lines so curved as
to follow the serpentine course thus suggested. And in other cases a
slight curvature of the lines joining pairs of stars will seem
permissible, because corresponding to a configuration suggested by the
stars themselves.
It is easily seen that in some of the simplest cases, the figure
associated with a constellation is at once suggested by this method of
delineation. For instance, take the case of the Northern Crown.
[Illustration: Fig. 32.--The Northern Crown.]
[Illustration: Fig. 33.--The Dolphin.]
Public-domain text, read in full here on John Shaqi.
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