How do you get a luminary on Dragon Quest IX?

Answer 1

you go to the dance hall west of the mirage mahal palace and speak to a girl outside the dancer's change room with a quest bubble thing (blue) over her head. then you have to defeat a moai minstrel with a hot lick attack. you need a minstrel with 4 lithiness skill points. moai minstrels can be found in lv.50 and up grottoes.

Answer 2

You must have beaten the main story to unlock this quest.

Go to the dance hall in Gleeba (this doesn't have to be in the evening). You will find Applaudia (the NPC luminary near the west side) who will offer you Quest #118: A Star is Born. Kill a moai minstrel with Hot Lick and talk to Applaudia again and the luminary vocation will be unlocked.

Quest #118: A Star is Born

For this quest you need to finish off a moai minstrel with the Hot Lick ability. It's not easy because Hot Lick only does about 20 points of damage. It helps if you pay careful attention to the moai minstrel's HP (by observing the total amount of damage you deal to it when it dies).

Answer 3

A luminary is a dancer/superstar vocation. The quest to unlock the vocation is found in Gleeba, in the dance hall, just outside the door that leads to the back rooms.