=== 金星の女神として ===
イナンナは金星と関連しており、金星の名前はローマ時代のヴィーナスに由来している<ref>Black, Green, 1992, pages108–109,</ref><ref>Nemet-Nejat, 1998, page203</ref><ref>Black, Green, 1992, pages108–109</ref>。いくつかの讃美歌は、イナンナを惑星ヴィーナスの女神または擬人化として讃えている<ref>Cooley, 2008, pages161–172</ref>。
Inanna was associated with the planet Venus, which is named after her Roman equivalent [[Venus (mythology)|Venus]]. Several hymns praise Inanna in her role as the goddess or personification of the planet Venus.{{sfn|Cooley|2008|pages=161–172}} Theology professor Jeffrey Cooley has argued that, in many myths, Inanna's movements may correspond with the movements of the planet Venus in the sky.{{sfn|Cooley|2008|pages=161–172}} In ''Inanna's Descent to the Underworld'', unlike any other deity, Inanna is able to descend into the netherworld and return to the heavens. The planet Venus appears to make a similar descent, setting in the West and then rising again in the East.{{sfn|Cooley|2008|pages=161–172}} An introductory hymn describes Inanna leaving the heavens and heading for ''Kur'', what could be presumed to be the mountains, replicating the rising and setting of Inanna to the West.{{sfn|Cooley|2008|pages=161–172}} In ''Inanna and Shukaletuda'', Shukaletuda is described as scanning the heavens in search of Inanna, possibly searching the eastern and western horizons.{{sfn|Cooley|2008|pages=163–164}} In the same myth, while searching for her attacker, Inanna herself makes several movements that correspond with the movements of Venus in the sky.{{sfn|Cooley|2008|pages=161–172}}
Because the movements of Venus appear to be discontinuous (it disappears due to its proximity to the sun, for many days at a time, and then reappears on the other horizon), some cultures did not recognize Venus as a single entity;{{sfn|Cooley|2008|pages=161–172}} instead, they assumed it to be two separate stars on each horizon: the morning and evening star.{{sfn|Cooley|2008|pages=161–172}} Nonetheless, a [[cylinder seal]] from the [[Jemdet Nasr period]] indicates that the ancient Sumerians knew that the morning and evening stars were the same celestial object.{{sfn|Cooley|2008|pages=161–172}} The discontinuous movements of Venus relate to both mythology as well as Inanna's dual nature.{{sfn|Cooley|2008|pages=161–172}}