Stars of the Past
Their appearance mostly depends on the god that created them, with skin tone and head symbols all corresponding to their god. Their stars will always remain though due to the Deity of Stars creating all, so their mark shall always remain.
Vision of Stars
Their god shall send them a vision of an event that will come in the following days whilst they sleep, many look up to them for wisdom due to this fact even when they dont always have the answers. If their god is more serious and mature than the most impactful event will be shown but if its a happy and childish god than they can be quite small and uneventful.
Curse of Deviation
Many centuries ago after their creation the Deity of the Stars made a pact with the Asteres that the gods created, that they and their anscestors would have to devote their life to their god and never deviate going with their rules and in return they would be blessed with visions and powerful magic but if they deviated then they would be cursed for the rest of their life however the god see fit, the early Asteres accepted the offer of powerful magic was too good to refuse. Cursed Asteres whilst few do walk the world of Kyrin shonned by society for what they have done and with a terrible curse and their starry freckles now with cracks in them they cant fit into society instead becoming outcasts and some even making allies with other Cursed Asteres.