Messier 109 (M109), a spiral galaxy in the constellation Ursa Major
David H. Levy mentions the modern 110 object catalog while Sir Patrick Moore gave the original to 104 but has M105-M109 listed as an addendum.
Messerschmitt Bf 109 | Messier | Charles Messier | Messier object | Messier 81 | Mark Messier | Motor Torpedo Boat PT-109 | :Messerschmitt Bf 109 | Washington State Route 109 | Walter HWK 109-509 | Tennessee State Route 109 | PT-109 | North Carolina Highway 109 | Motor Torpedo Boat ''PT-109'' | Messier marathon | Messier 99 | Messier 98 | Messier 96 | Messier 94 | Messier 93 | Messier 92 | Messier 91 | Messier 82 | Messier 73 | Messier 72 | Messier 69 | Messier 62 | Messier 54 | Messier 52 | Messier 47 |