Apollo asteroid notable for its very small perihelion and for being the progenitor of the Geminid meteor shower
via Wikipedia infobox
3200 Phaethon (/ˈfeɪ.əˌθɒn/; previously sometimes spelled Phæton), provisionally designated 1983 TB, is an active Apollo asteroid with an orbit that brings it closer to the Sun than any other named asteroid (though there are numerous unnamed asteroids with smaller perihelia, such as (137924) 2000 BD19). For this reason, it was named after the Greek Hero, Phaëthon, son of the sun god Helios. It is 5.8 km (3.6 mi) in diameter and is the parent body of the Geminids meteor shower of mid-December. With an observation arc of 35+ years, it has a very well determined orbit. The 2017 Earth approach distance of about 10 million km was known with an accuracy of ±700 m.
Discovery
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).