I was taking night photos on my iphone 14. it was a long exposure of 10 seconds (the photo). i took multiple. but as i was taking this one i noticed an object moving i thought it was a satellite but it was much brighter then the ones i’ve seen. it moved in a slower thicker way if that makes any sense. it disappeared and appeared very quickly lasted about 10-15 seconds.i was laying down on a lawn chair viewing the stars. it was located near Altais.