This paper takes a look at historical literature and archeological evidence concerning the city planning of the Western Zhou’s 西周 (1070–771 bce) eastern capital at Luoyi 雒邑 in the tradition of “modeling heaven and earth.” After providing a survey of relevant pre-imperial sources, we will examine evidence concerning the theory behind the planning, the choice and location of the site, the timeline of events, and the timing and implications of “positioning” (gongwei 攻位). By way of conclusion, this paper will argue that a coincidence in timing between the start of “positioning” and the spring equinox in 1062 bce suggests rereading a passage from the Yi Zhou shu 逸周書 to the effect that the city’s north–south axis was aligned to the constellation Yi 繹 (also known as Tiantian 天田, ο–τ Vir) and that its layout was modeled on the Nine Palaces (jiugong 九宮).