AQUARIUS (the “Water-bearer” or “Cup-bearer”), in
astronomy, the eleventh sign of the zodiac (q.v.), situated
between Capricornus and Pisces. Its symbol is , representing
part of a stream of water, probably in allusion to the fact that
when the sun is in this part of the heavens (January, February)
the weather is rainy. It is also a constellation mentioned by
Eudoxus (4th centuryB.C.) and Aratus (3rd centuryB.C.);
Ptolemy catalogued forty-five stars, Tycho Brahe forty-one,
Heveliusforty-seven. ζ Aquarii is a well-defined binary,
having both components of the fourth magnitude; it is probably
of long period.
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