Record D-240: a body's orbital position and stellar assignment are placeholder
registry data with no authored physical intent, so no derivation may use them as
physical inputs. Climate derives from authored planet_class (temperature envelope)
+ atmosphere + hydrosphere + seed. Supersedes the sun-driven Stefan-Boltzmann
portion of D-239 §2, which produced +356 C 'temperate' worlds (NULL spectral_class
-> G-Sun default on an M-dwarf catalog).
File T-1033 under T-974: rewrite derive_temperature_c to the class-envelope model,
drop the orbit/star inputs, regen the T-1031 golden. Audit confirmed the blast
radius is one function (derive_temperature_c).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8
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