Astronomers Discover Fastest-Orbiting Asteroid Ever Seen


Aug 24, 2021

The newly-discovered asteroid 2021 PH27 has a diameter of about 1 km (3,280 feet) and orbits the Sun in just 113 days — the shortest known orbital period for an asteroid and second shortest for any object in our Solar System after Mercury.

http://www.sci-news.com/astronomy/fa...oid-09991.html