Rediscovery by the Real M'koi

Scout ship "The Real M'Koi" Redicovers a legendary world long thought to be lost to the vagaries of stellar drift. The ship was inspired by this artwork from John Wallin Liberto Originally the piece in question was here on ArtStation, but has since been removed. Fortunately, there is still a copy at DA. Thank you , John, for posting wonderful and inspirational art!
Can anyone recognise the world in question? Hint; Backgrounds like that will only be visible deep in the core.

All assets modeled, and rendered in Blender 2.82