The word "aurorally" is often used to describe something that is related to the aurora borealis, also known as the Northern Lights. However, there are several synonyms that can be used to convey similar meanings. These include "solar", as the Northern Lights are caused by solar activity, "celestial," as they are a natural phenomenon that occurs in the sky, and "ethereal," as they are often described as otherworldly or supernatural. Other potential synonyms include "luminous," "radiant," and "glowing," as well as more specific words like "phosphorescent" or "fluorescent" that describe the specific type of light emitted by the aurora.