This was like a sparkly firework. It wasn't a dark sky but it was early morning getting light. Difficult to say how bright it was comparing to Venus or a full moon you asked in 1 of your questions. It wasn't a 'boulder' (I think you call them). More like a firework fizzing and sparkling is more similar with a white tale behind it coming across my path in a straight line. It was a privilege to see it.