((All edits I made in bold))
ZODIAC AND NPCS
SIGN - NAME - PLANETS
emoji unicode: 2648 Aries Mars Mars
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emoji unicode: 2649 Taurus Venus Venus
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emoji unicode: 264a Gemini Mercury Mercury
Lorekeeper and Vaogan both have amethyst gems in the same area in the same shape along with looking very similar besides Lorekeeper looking much more... worn out? Making them likely candidates for Gemini.
emoji unicode: 264b Cancer Moon Moon
karkat pls
emoji unicode: 264c Leo Sun Sun
NEMEAN: NOW REVEALED! (WAIT WAIT WAIT, NEMEAN'S A GIRL? NO WORRIES, WIKIPEDIA STILL BACKIN UP MY THEORY:
According to one version of the myth, the Nemean lion took women as hostages to its lair in a cave near Nemea, luring warriors from nearby towns to save the damsel in distress. After entering the cave, the warrior would see the woman (usually feigning injury) and rush to her side. Once he was close, the woman would turn into a lion and kill the warrior, devouring his remains and giving the bones to Hades.
(THEATRICS!!!!!!!!!!!!!!!! SEEMS LEGIT TO ME!!!!!!!!!!!!)
(scary side facts)
The Nemean lion was a vicious monster in Greek mythology that lived at Nemea. It was eventually killed by Hercules. It could not be killed with mortals' weapons because its golden fur was impervious to attack. Its claws were sharper than mortals' swords and could cut through any armour. ... what a babe. still super dangerous, don't let her pretty looks fool you! she's full of illusions and super precious, goddamn
emoji unicode: 264d Virgo Mercury Mercury
Astaea/Deer Dad ( Fleeing from the new wickedness of humanity,

ascended to heaven to become the constellation Virgo. Deer Dad apparently is the virgin goddess of innocence and purity and is associated with the goddess of justice-- or at least that's where he gets his name. Deer Dad for lonely virgin confirm!)
emoji unicode: 264e Libra Venus Venus
Totum maybe? it seems that the two haves balance each other out, like a scale, good and bad mixing to make balance, two parts to one whole.
emoji unicode: 264f Scorpio Mars Pluto
Senka maybe? Pluto is the roman version of Hades and since the darkness has taken her she has become a thing of nightmares, something that would not be surprising to see in the underworld. Her personality also fits with Scorio, cool, cunning and always able to execute her plans to precision.
emoji unicode: 2650 Sagittarius Jupiter Jupiter
Jupiter/Centaur (Jupiter [...] rules both Sagittarius and Pisces. Sagittarius, half human and half-horse, is the centaur of mythology, the learned healer who forms a bridge between human beings and beasts. Also known as the Archer, Sagittarius is represented by the symbol of an arrow. Pretty obvious here. The name reveal only solidifies it.)
IMPORTANT SIDE NOTE: JUPITER + BEAST AND MAYBE OTHERS MADE THE GOLEMS. THEY WERE PROBABLY USING THEM TO HARVEST GEMS FOR WEAPONS (SEE HER ARROWS??? WOW) FOR THAT CRAZY? WAR? WE THINK THEY HAD
part of me wants jupiter to be batcat's momma or something but it's more likely that they made the golems so yeah
emoji unicode: 2651 Capricorn Saturn Saturn
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emoji unicode: 2652 Aquarius Saturn Uranus
Possibly Gangoser? He seems to have a personality and demeanor fitting of it.
emoji unicode: 2653 Pisces Jupiter Neptune
TENZIN: NOW NAMED! (Raheerah literally called Tenzin "Your Pisces" before so this is a fairly solid bet. Interesting tidbit from wikipedia about Pisces in mythology:
According to one Greek myth, Pisces represents the fish into which Aphrodite (also considered Venus)[22] and her son Eros (also considered Cupid)[22] transformed in order to escape the monster Typhon.[2][23][20] Typhon, the "father of all monsters" had been sent by Gaia to attack the gods, which led Pan to warn the others before himself changing into a goat-fish and jumping into the Euphrates.[8] A similar myth, one which the fish "Pisces" carry Aphrodite and her son out of danger, is resounded in Manilius' five volume poetic work Astronomica: "Venus ow'd her safety to their Shape."[22] Another myth is that an egg fell into the Euphrates river.