�molad is not an astronomical observation, but simply adding a fixed average lunar month time that may be hours off a �real� rosh chodesh.
On that note, is it necessary to announce a rosh chodesh (or to go to listen to it), as everyone is going to see it and reminded multiple times before that by the media?�
My quip of Rosh Chodesh wasn�t to you it was to Modern who said �We recite Hallel on the days of solar eclipses.�