Date: 11/7/2012Time: approximately 7:30 to 7:40 pmLocation: Delray Beach, Florida We walked out of the condo to go for a short walk. Looked up into the sky to check out the stars. I observed a huge, boomerang shaped object moving from North to South. I pointed it out to my friend.At first, I thought that it was a formation of birds since the shape was somewhat of a Vee, but with rounded edges. However, it was dark and birds don't usually fly in formation, at night.There were no visible lights on the object. It moved silently, at a constant speed high above the cirrus clouds which were at a very high altitude.Commercial airline traffic was in the air, at much lower altitudes. These aircraft were dwarfed by the object that we observed. We were amazed at the size of this flying object or formation. It moved at a very high speed and, within 45 to 60 seconds it could no longer be seen.