A moon dog, moondog, or mock moon, (scientific name paraselene, plural paraselenae, meaning beside the moon) is a relatively rare bright circular spot on a lunar halo caused by the refraction of … A member of the halo family, paraselene, also commonly known as a moon dog or mock moon, is an atmospheric optical phenomenon where bright spots or mock moons appear to the sides of the … A moon dog (or moondog) or mock moon, also called a paraselene[1] (plural paraselenae or paraselenes) in meteorology, is an atmospheric optical phenomenon that consists of a bright spot to …

Both words refer to a luminous appearance, or bright spot, that is seen in connection with lunar halos caused by the refraction of moonlight through …