Shimmering triangle of dim white lights change direction quickly and are gone - with no jet noise.As I arrived home just now and was heading to my front door, I saw three dim shimmering half invisible dim white lights (not blinking) in the shape of a tight wide triangle. They were heading to the northeast at an altitude of about 10,000 feet at a speed faster than fighter aircraft – but slower than a shooting star. However, there was no jet noise. I could not see the actual craft or crafts; just the lights. It looked like the lights of three fighter jets in tight formation. The craft or crafts turned north-northeast and headed out over the Long Island sound towards Westchester and quickly faded from sight. The turn was impossibly swift with no arc; more like an angle drawn on paper. The shimmering part was like a Star Trek movie when the ship comes out of cloaking – it was like the light formation was there but you could see through it somehow - half visible / half invisible. My daughter saw the movement but not much else. It was gone before I could process what it was. I am hoping others will see this and report it. I was just looking if anyone has reported anything similar and the Orland 4/10 sighting comes close.