To what region of Babylonia he belongs has not yet been ascertained.

Judging from analogous instances, he represented some phase of the sun worshipped in a particular locality, whose cult, with the disappearance of the place from the surface of political affairs, yielded to the tendency to concentrate sun-worship in two or three deities,--Shamash and Ninib more especially.

In the astronomy of the Babylonians the name survived as a designation of Marduk-Jupiter.[94] Nin-Mar.
A local deity, designated as the lady of Mar, is invoked by Ur-Bau, from whom we learn that she was the daughter of Nina.

_Mar_, with the determinative for country, _Ki_, appears to have been the name of a district extending to the Persian Gulf.[95] The capital of the district is represented by the mound Tel-Id, not far from Warka.

Her subsidiary position is indicated in these words, and we may conclude that Nin-Mar at an early period fell under the jurisdiction of the district in which Nina was supreme.