Silent Dim Triangle over Los Angeles

I like to sit in my San Pedro backyard and satellite watch. Tonight, at about 7:43, while facing south toward Catalina, a silent, dim, compact triangle with about 5 lights flew from the east toward the west. It looked almost translucent. It was about the size of what I imagine an F117 would be. The speed was brisk but not fighter-jet speed, if that makes sense. There was a light hazy cloud cover hanging over the coast that served to amplify the sighting. Stars and satellites could be seen in spite of the clouds. At first I thought it was a ‘V’ formation of seabirds. My next thought was, ‘that’s a flying triangle, omigod!’.