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 barroom more or less, with a rectangular stage on the broadside 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.