Isosceles triangle formation of 3 brightly glowing, fiery orange orbs.I had just stepped outside for a walk when I randomly looked over my left shoulder and became attracted to a formation of 3 very bright, glowing orange orbs in the shape of an isosceles triangle in the sky that were floating quietly north; no sound. The orbs appeared to look like flickering fire. The formation floated intact (all 3 orbs moving in sync). After about 1 minute, the orbs slightly began to move closer together and the triangle tightened. Within 10 seconds of this, the triangle of orbs, still brightly lit and unfading, then floated into a patch of thin clouds and disappeared. I did not see them again during the duration of my walk. The sky at this time was partly-mostly cloudy.