Tutorial:make a christmas comet with particles systems [ITA][ENG][ESP][FRA][POR][DEU]

In this tutorial, how to create an animated christmas comet

Italian:
https://www.graphicsandprogramming.net/ita/tutorial/blender/particles/creare-cometa-con-particles-in-blender

English (translated)
https://www.graphicsandprogramming.net/eng/tutorial/blender/particles/create-comet-with-particles-in-blender

French (translated)
https://www.graphicsandprogramming.net/fra/tutorial/blender/particles/creer-comete-avec-particules-dans-blender

Spanish (translated)
https://www.graphicsandprogramming.net/esp/tutorial/blender/particles/crear-cometa-con-particulas-en-blender

Portuguese (translated)
https://www.graphicsandprogramming.net/por/tutorial/blender/particles/criar-cometa-com-particulas-no-blender

German (translated)
https://www.graphicsandprogramming.net/deu/tutorial/blender/particles/komet-mit-partikeln-im-blender