Scorpio, the scorpion
Yes, the Capricorn constellation is located in the southern celestial hemisphere close to other constellations such as Aquarius and Sagittarius. It lies between the constellations of Sagittarius and Aquarius, near the celestial equator.
The constellations that are near Mercury in the sky will vary depending on its current position in its orbit. Some constellations that are often near Mercury during different parts of the year include Capricornus, Sagittarius, and Scorpius.
Some constellations near Scorpius include Libra, Ophiuchus, Sagittarius, and Corona Australis. Depending on the season and location, other neighboring constellations may also be visible.
Aquila has nine neighboring constellations: Aquarius, Capricornus, Delphinus, Hercules, Ophiuchus, Sagitta, Sagittarius, Scutum, and Serpens Cauda.
Most of the "classical" constellations were named by the ancient Greeks. I believe this includes Sagittarius.
SagittariusOphiuchusLibraLupusNormaAraCorona Australis
aquila scutum scorpius Capricorn and a few more
Andromeda, Cassiopeia, and Pisces Sagittarius, Taurus, and Leo
No. All circumpolar constellations are found near the celestial poles. Because of their proximity to the poles, they never disappear from view. Sagittarius is on the ecliptic and thus (like all other zodiac constellations) not close enough to the poles to render it circumpolar.
The latitude and longitude coordinates are not typically used to locate constellations in the night sky. Instead, Sagittarius can be found in the Southern Hemisphere, specifically near the coordinates of approximately -25 degrees latitude and 0 degrees longitude. Remember, constellations are best located using star maps or astronomy apps.
These constellations all border Capricornus: Aquarius Aquila Sagittarius Microscopium Piscis Austrinus
7 constellations border Scorpius. They are Sagittarius, Ophiuchus, Lupus, Ara, Norma, Corona Australis and Libra.