الواصلة
mess·i·er num·berالتركية النطق
mesiır nʌmbırالنطق
/ˈmesēər ˈnəmbər/ /ˈmɛsiːɜr ˈnʌmbɜr/
علم أصول الكلمات
() From Charles Messier (1730-1817), who first published Nebulae and Star Clusters in 1780 as a listing of visible objects in the night sky that were not stars. Objects in Messier's catalog are numbered, and the letter M (for Messier) is prepended to these numbers.