The Messier catalogue was compiled by French astronomer Charles Messier during the late 18th century and consists of 110 relatively bright deep sky objects (galaxies, nebulae, and star clusters).
marathon | Boston Marathon | London Marathon | New York City Marathon | Marathon | World Marathon Cup | Boston Marathon bombings | European Marathon Cup | Marathón | C.D. Marathón | Chicago Marathon | Marathon, Greece | Messier | Charles Messier | 2010 London Marathon | Toronto Marathon | Marathon world record progression | Marathon, Ontario | Marathon County, Wisconsin | Marathon County | Tokyo Marathon | Messier object | Messier 81 | Mark Messier | Marathon 2: Durandal | Honolulu Marathon | Berlin Marathon | 2013 Tokyo Marathon | Tokyo International Marathon | men's marathon |
Machholz is also considered to be one of the inventors of the Messier marathon, which is a race to observe all the Messier objects in a single night.