This reminds me of the intact Big Core derelicts in the Big Core graveyard in Gradius Gaiden, except that this appears to be on the planet of Gradius (where T-301 fought the Big Core Mk. IV high above the planet).
I haven't thought of that - it could totally be planet Gradius, yes! I've always loved the ship graveyard in Gradius Gaiden, such an awesome game!!! You seem to know your Gradius history mate, I'm really impressed!!!