If you want to call a café "La Luna" (The moon), you needn't put "de". But, it's ok too

Hi Sabrina! Another thing i would like to share with you that is when ever you want to speak "a" or "an" one difference is that in between these two alphbets is when a word starts from "a","e","i","o","u" then your preceding term will be "an" otherwise "a". Thanks you.