V-shaped, lighted objects hovering and moving in westerly and easterly directions.Avra Valley, Arizona, Monday April 27, 2015. Approximately 10:00 to 10:15 pm. Went into backyard to take dogs out and noticed two objects "hovering" at an unknown distance in a westerly direction from my home. One was just above the desert tree line and the other was a much greater distance vertically above the first.I had watched for several minutes when the higher object started moving at a constant slow rate in a more or less easterly direction. Still at an unknown distance when it passed by, it appeared to have a central "white" lighted "nose" with a set of blue or green lights extending from the central nose in a V shape (the V was in a plane more or less parallel to the ground with the vertex at the nose). It also had another set of lights of shorter length "above" the nose in a double V shape (or tripod shape) that were orientated at a steeper vertical angle than the lower longer lights. These appeared to be red and either green or blue. I could not distinguish a body or an aerodynamic shape of the object only the linear angled light lines.As it passed my line-of-sight in the distance the central white light went off and only the remaining V sections were lighted. I listened very carefully as it passed and could not hear any sound at all. As the object continued along its path I lost sight of it since my two story house blocked my view.I then focused my attention back on the first lower object since it had remained fixed the whole time I observed the other moving object. At this point approximately 5 to 10 minutes had passed and I went inside to get my wife. She grabbed her phone (camera) and I grabbed some low power sports binoculars for a possible better look. I tried to photograph the lower hovering object but it was to far for the camera to pick up any detail and it just looked like a light blob, so I didn't take the shot. The binoculars were too low mag and I couldn't make out any detail with them either. So I watched this hovering object with naked eye for another 5 minutes or so. The object remained just above my tree line but began to move slowly in a more or less westerly direction until I lost sight of it.Backgrounds: I am a retired aerospace engineer and my wife is a retired english teacher.