Constellation Room is a small venue in Santa Ana, California mostly hosting indie acts. It is not an independent entity though. It has its own schedule but it resides inside The Observatory as a separate stage. A ticket for one cannot be used in another. It is basically a bar room more or less, with a rectangular stage on the broad side of the room, a bar on the other side. Naturally, this area has mostly smaller, up and coming acts scheduled. It is a wonderfully intimate space. The stage is high so there are no issues with anyone's sight being blocked.
It is oustide the room, down the hall, to the left of the main entry.