3200 Phaethon /ˈfeɪ.əθɒn/ (previously sometimes spelled Phaeton), provisional designation 1983 TB, is an active[7] 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).[8] For this reason, it was named after the Greek myth of Phaëthon, son of the sun god Helios. It is 5.8 km (3.6 mi) in diameter[5] 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.[1] The 2017 Earth approach distance of about 10 million km was known with an accuracy of ±700 m.[1]

 3200 Phaethon /ˈfeɪ.əθɒn/ (previously sometimes spelled Phaeton), provisional designation 1983 TB, is an active^[7] 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).^[8] For this reason, it was named after the Greek myth of Phaëthon, son of the sun god Helios. It is 5.8 km (3.6 mi) in diameter^[5] 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.^[1] The 2017 Earth approach distance of about 10 million km was known with an accuracy of ±700 m.^[1]