совпадение полнолуния с перигеем

full super moon <редк.> (MichaelBurov); full supermoon <редк.> (MichaelBurov); super moon (MichaelBurov); supermoon (MichaelBurov); super full moon (MichaelBurov); perigee-syzygy of the Earth-Moon-Sun system (MichaelBurov)

совпадение полнолуния с перигеем A supermoon is the coincidence of a full moon or a new moon with the closest distance that the Moon reaches to Earth on its elliptic orbit, resulting in the largest apparent size of the lunar disk as seen from Earth. The technical name is the perigee syzygy of the Earth–Moon–Sun system

astron.

perigee-syzygy (wikipedia.org MichaelBurov); perigee syzygy (wikipedia.org MichaelBurov)