Kajamānu (Kayyamanu)

Kajamānu originates within Mesopotamian astronomical-theological practice as the name for the visible planet Saturn. The Akkadian name ka-a-a-ma-nu is glossed in sources as 'the constant,' indicating the term encoded perceived qualities of the planet. In Mesopotamian thought planetary bodies were observed, named, and integrated into religious relations; Kajamānu is specifically attested as being 'regarded as the star of Ninurta,' showing how an observed wandering star became relationally tied to a major deity. Over time the name and concept were transmitted into neighboring linguistic and religious worlds (e.g., Mandaean Kiwan, Persian Kayvan, Syriac Kēwān) and incorporated into later seven-planet systems.

In the provided sources Kajamānu is described as the astronomical planet Saturn—the visible 'wandering star' observed in the sky—rather than as an anthropomorphic or vividly iconographic being. A Sumerian form (Uduimin-saĝuš) and Akkadian forms are recorded; no anthropomorphic physical description or detailed iconography is given in the supplied materials.

The supplied material does not attribute narrative supernatural powers to Kajamānu beyond its status as the planet Saturn and its cultic/astral association with Ninurta. Within Mesopotamian practice more generally, planets served as tracked celestial bodies used in omen interpretation and formed part of divine entourages; the sources attest Kajamānu's role as an identifiable member of that astral framework but do not provide specific omen-lists or powers for this planet in the excerpts provided.