K2-285 table values cannot share one stellar mass within three listed errors under a two-body model with each companion mass at most 0.08 solar masses

We test whether four K2-285 orbit rows in Table A.1 of Palle et al. (2019) can share one stellar mass under a two-body Kepler model. We allow each period and semi-major axis to change by three listed asymmetric errors plus a rounding allowance. Each companion can have any mass from zero to 0.08 solar masses. Planet b permits stellar mass at most 0.764331 solar masses, while planet e requires at least 2.796222. The gap is 2.031891 solar masses. This exclusion needs no external stellar mass estimate. The four intervals first share a mass at error multiplier 11.418412. The source values and errors match the default NASA Exoplanet Archive rows. Earlier work already flagged the individual rows; this work adds a source check and a finite common stellar mass test. A separate census of 1,386 selected default transit rows gives 12 review targets at multiplier three. A calculation with 60 decimal digits confirms the results. The multiplier is a feasibility bound, not a statistical significance. The result concerns table estimates under the stated model. It does not determine a cause or establish a new planet. We release the frozen archive response, source extraction, code, results, figures, and reproduction instructions.

K2-285 · Kepler law · exoplanet data · interval bounds · data provenance · NASA Exoplanet Archive · stellar mass