Once the archive's 3 277 hosts became stars and 574 Gaia hosts took their names, "K2-18" listed
the star K2-18 and then K2-180 to K2-186, and no planet: "k2-18 b" and "k2-180" were both prefix
matches, and on a tie the ranking put every star before every exoplanet. Replaying each host's
name through the ranking over the published catalogue, 325 hosts had some of their own planets
pushed out of the eight rows shown (655 planet rows), against 75 before the archive stars.
A prefix match that ends where a word does now scores 3.5, between an exact match and a prefix
running on into the same word. The same replay gives 50 hosts and 62 rows. In the running app
"K2-18" lists K2-18, K2-18 b, K2-18 c, then K2-180 onward; "Kepler-186" lists the star and
Kepler-186 b to f before Kepler-1860; Kepler-22 b and WASP-12 b are back. "Proxima", "Io" and
"TRAPPIST-1" list as before.
Control: scoring the word-ending prefix level with any prefix fails "lists a host's own planets
ahead of the systems whose names run on from its own" alone.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
SenrokaiandClaude Opus 5.5
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