Stars can be seen a long way off. They'd have names long before their systems were settled. Regional nicknames might be given centuries later. There's little reason for such names to be "consistent". Indeed, within a hundred mile radius, I can find names solemnly religious in tone, whimsical, or politically-motivated (named after someone the founders wanted patronage from). Not to mention in a mix of languages. Unless one fairly homogeneous group does the naming over a fairly short time period, there's little reason to expect that the naming will fit a single paradigm.