Capricornus is one of the 88 modern constellations, and was also one of the 48 constellations listed by Ptolemy. Under its modern boundaries it is bordered by Aquila, Sagittarius, Microscopium, Piscis Austrinus and Aquarius.
As a sign of the Zodiac, Capricorn lies between Sagittarius and Aquarius.
In some cosmologies, Capricorn is associated with the Classical Element Earth, and thus called an Earth Sign (with Taurus and Virgo). Its polar opposite is Cancer.