His name, Soma Rohbii, is an amalgamation nakshatra related names:
His forename is a reference to the eponymous Moon deity associated with Mrigashīrsha, the fifth nakshatra in Hindu astronomy, a reference to Supernova's naming motif.
His surname is derived from ローヒニー (read as "Roohinii"), which, in turn, is the Japanese pronunciation of Rohini, the forth nakshatra in Hindu astronomy, which is also a reference to Supernova's naming motif.