Dark, triangle-shaped craft with shimmering, moving light & five fixed lights, seen over Hudson, NYAt approximately 2:30am on Monday, May 15th, 2017, I went out into the backyard to take out the garbage. It was a clear night, so I sat down on the porch and leaned back to do some star gazing.A few minutes in, I noticed that some of the stars were moving, in tandem. I focused in on that area, and there were 5 “stars” in a V-formation. I realized that it was a fairly large triangle-shaped craft of some sort, because I could see the dark shape blocking actual stars from view, as it passed overhead.It appeared to be quite low in the sky, was quiet, and moved slowly. A shimmering light passed all over the bottom of the craft several times, independent of the five V-formation lights. I watched it cross the sky until I couldn’t make it out any longer. I’m not far from Stewart International Airport (public/military), and suppose it might have been a military plane.Of note, the street lamp on the corner went out while the craft passed over, then started glowing slightly until it reached the normal light, seemed to get brighter than usual and orange-tinted, and abruptly went out again. The lamp remained dark afterwards. The bulb probably burned out and the timing coincidental; but it was odd, so I thought that I’d mention it, in the case that anyone else had witnessed a similar coincidence.