Luna (goddess) it was struck by lightning, the same day the popularist leader Cinna was murdered by his troops. The Aventine temple may have been destroyed by the Great Fire of Rome during the reign of Nero. As Noctiluna ("Night-Shiner") Luna had a temple on the Palatine Hill, which Varro described as shining or glowing by night. Nothing else is known about the temple, and it is unclear what Varro meant. The Kalends of every month, when according to the lunar calendar the new moon occurred, was sacred to Juno, as all Ides were to Jupiter. On the Nones, she was honored
Celestial sphere the equatorial coordinate system, the celestial equator divides the celestial sphere into two halves: the northern and southern celestial hemispheres. Because astronomical objects are at such remote distances, casual observation of the sky offers no information on their actual distances. All celestial objects seem equally far away, as if fixed onto the inside of a sphere with a large but unknown radius, which appears to rotate westward overhead; meanwhile, Earth underfoot seems to remain still. For purposes of spherical astronomy, which is concerned only with the directions to celestial objects, it makes no difference if this is actually the case