I spotted it through my living room window. The room was bright enough to make a proper estimate of it's brightness somewhat difficult but I would estimate between -6 and -8 possibly brighter given I was in a well lit room! Also the altitude of first sighting was constrained by the window I saw it through. Object was moving at moderate speed and took about 1.5-2.0 seconds to disappear over the horizon. The colour was pure white.
