Tunshagon is a hydrogen-helium gas giant with traces of chlorine and nitrogen in its atmosphere. It has an unusually small number of moons for a gas giant; a mere seven. This is likely due to the star Farinata capturing the majority of the mass during the nebular collapse that created the system.
Tunshagon is too small and hot to be a "standard hydrogen-helium gas giant" (William Hubbard, The New Solar System 4th ed, 1999; p. 194). In addition its near 18 sol-mass star means that even "ice giants" of this radius are impossible (due to Farinata's young age and heat). Tunshagon is more likely a superterrestrial protoplanet.