The 2019 orbit sizes for K2-285 imply different stellar masses when planet masses are small

We test whether published periods and orbit sizes can describe planets around one star. We screen 458 host and reference groups in the NASA Exoplanet Archive PS table on 21 October 2026. K2-285 has the largest ratio of total masses from Kepler's third law. We check the original final model table of Palle et al. (2019). The orbit sizes and periods give 0.616, 1.465, 1.995, and 3.594 solar masses for planets b through e. They cannot give one stellar mass when planet masses are small. The e to b mass ratio is 5.839. It remains at least 3.765 when all periods and orbit sizes can change by three reported error widths. These are algebraic input ranges, not confidence intervals. If the reported stellar mass, radius, and temperature are retained, the conditional flux at e is 27.90 times Earth's flux, compared with the listed 10.50. The public K2 light curve is shown for context without a transit fit. The result identifies a conflict within one source table. It does not establish its cause or provide a new joint fit. The package includes frozen numerical inputs, source addresses and hashes, code, full results, two figures, and reproduction instructions. Other catalogue flags remain unreviewed leads.

K2-285 · Kepler third law · exoplanet archive · orbital consistency · stellar flux · public K2 data · reproducible astronomy