Randall Munroe, creator of the wildly popular webcomic xkcd, has joined a very exclusive group: comics writers and artists who've had asteroids named in their honor.

According to the cartoonist, the International Astronomical Union, which assigns designations to celestial bodies, was accepting name suggestions for small solar system objects, and xkcd readers Lewis Hulbert and Jordan Zhu submitted Munroe's name for asteroid (4942) 1987 DU6. The recommendation was accepted, and the asteroid is now officially designated 4942 Munroe.

"The first thing I did was try to figure out whether 4942 Munroe was big enough to pose a threat to Earth," the cartoonist writes. "I was excited to learn that, based on its albedo (brightness), it’s probably about 6-10 kilometers in diameter. That’s comparable in size to the one that killed the dinosaurs — definitely big enough to cause a mass extinction! Unfortunately Fortunately, it’s in a fairly stable circular orbit between Mars and Jupiter, so it’s unlikely to hit the Earth any time soon."

Munroe is now one of a relative handful of comics creators who have asteroids named after them: J. Michael Straczynski (although it was in recognition of works in other media, like Babylon 5), Carl Barks and, just this summer, The Incal writer Alejandro Jodorowsky.