Round the year with the stars: The chief beauties of the starry heavens as seen with the naked eye — John Shaqi
Round the year with the stars: The chief beauties of the starry heavens as seen with the naked eyeServiss, Garrett Putman
Science
Round the year with the stars: The chief beauties of the starry heavens as seen with the naked eye
Serviss, Garrett Putman
Astronomy -- Popular works
It will be observed that the outline of the constellation Aquarius is
very curious, somewhat resembling that of the State of Louisiana tipped
on its side. The broader part of it runs down toward Fomalhaut, and the
northern part extends westward, like an L added to a house, between
Equuleus and Capricornus. The latter, the constellation of the “Goat,”
is relatively small and compact. Its two most interesting stars are
Alpha (α), or Algedi, the “Goat,” and Beta (β), or Dabih (signification
uncertain), both in one of the horns of the imaginary animal. Each of
these stars is a wide double. The distance between the Alphas is 373″,
and that between the Betas 205″, the latter being more than a tenth
of the apparent diameter of the moon. A good eye sees at once that
Alpha is double; but the two stars in Beta cannot be seen without a
glass, because one of them is below the sixth magnitude, the _minimum
visible_ for the naked eye. Each of the stars in Beta is a telescopic
double. The Goat heads westward, and the stars Delta (δ) and Gamma
(γ) are in his tail. This constellation has given us our Tropic of
Capricorn, because the place of the winter solstice was once within its
boundaries, although now we find it far west, in Sagittarius.
Above the head of Capricornus we recognize our old acquaintance Altair,
in the Eagle, and east of this the singular little constellation of
Delphinus, the “Dolphin,” often called “Job’s Coffin,” a name for
which I have never been able to find any explanation. Like all small
constellations whose stars are comparatively close together, it
immediately attracts the eye. None of its stars exceeds the fourth
magnitude; but three of them, Alpha, Beta, and Gamma, are telescopic
doubles, the last named being particularly beautiful on account of the
contrast of colors, gold and green; distance 11″.
Directly north of Altair is the very small constellation of Sagitta,
the “Arrow,” interesting when viewed with an opera-glass for its row of
little stars from which, as from a maypole lying horizontally, depend
loops of still smaller stars looking like garlands. In ancient times
this was sometimes called “Cupid’s Arrow,” but they did not venture to
represent the little god himself. Above Sagitta are the small stars
constituting the double constellation of Vulpecula et Anser, the
“Little Fox and the Goose.”
Public-domain text, read in full here on John Shaqi.
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