I was star-gazing, with a misty cloud cover of high altitude wispy clouds (cirrus?) which seemed lit up as by the moon, so visible, and i noticed a triagular shape in those high altitude wispy clouds, as if a large triangular vehicle, cloaked, were slowly drifting south within that cloud lasyer, the 3 sides of the invisible triangle clearly visible at the boundaries of cloud on each side. after about 5 minutes, when i looked again, the craft appeared to have already left, as the triangular sharp sides within the clouid layer had disappeared, leaving the usual random, patternless quality normally seen in clouds. i felt mystified, intrigued, but not partiularly surprised since i had been introduced seriously to "shadow government shenanigins" in 2006, and have before that always been captivated by sci-fi, astronomy, etc, including reading several timothy good books over the years amongst others. after watching "hanger 1" on blaze tv, freeview channel 83, this evening, i felt duty-bound to report this to you, and searched for "mufon uk" to find this report form.