Kajamānu (Akkadian: ka-ja-ma-nu "the constant") or Lubat-saguš (also Uduimin-saĝuš; Sumerian: LU.BAT SAG.UŠ, MULUDU.IMIN-saĝ-uš, "star of the sun") is the ancient Mesopotamian name for the planet Saturn. In ancient Mesopotamia, he was also regarded as the "star of Ninurta," the Mesopotamian fertility deity.[1][2][3]