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Constellation Grus is bordered by:
Piscis Austrinus
Microscopium
Indus
Tucana
Phoenix
Sculptor
These constellations all border Capricornus:
Aquarius
Aquila
Sagittarius
Yes, Capricorn borders these other constellations:
Gymnothorax austrinus was created in 2001.
Vox Piscis was created in 1627.