Bright large orange triangle hovers and moves, sets off alarmThere was still daylight, when I stepped into my room at around 9:30 pm to close the window shutters. As soon as I entered the room, through the window I saw a large and extremely shiny silent triangle hovering over the ground in front of a tree in our outdoor garden. It was facing my window. I stopped in my tracks and observed the object, wondering if it was some kind of climate phenomenon or unusual lighting, but quickly understood this was most likely not the case.The triangle was flat, with clear borders, and its inside looked like a very shiny, almost fiery, orange hologram (I could see the tree located behind through it). It was a bit taller than a small van. The center was pinkish, as well as its corners. Whereas usually at this time of day there are many birds flying around, there were eerily none to be seen near the area at that time.I wanted to make sure I was truly witnessing what I was seeing so I approached the window and started screaming and calling to other family members to come and see. My husband and children rushed in and by then the triangle had started to slowly move diagonally towards the sky and to become smaller. We all kept oohing and aahing at it until the triangle became very small, changed its position to lay flat in the sky and gave off a set of very brief and beautiful bright red lights, suddenly disappearing into thin air.Immediately after this happened, we received a call from our alarm providers. My mother in law has a medical alarm that consists of a button she presses if she needs medical help. The alarm necklace was hanging high from a lamp in my room at the time and our providers stated they were calling because the medical alarm was set off, and they wanted to know if everything was all right. Obviously, no one had touched the alarm button at all while we were in the room watching the unidentified flying object.