I was sitting outside in the backyard on a bench with my son who was 5 at the time, facing the southern skies. after watching several airlines at various altitude on the pristinely clear day, we noticed a fast moving object with obvious an obviously reflective exterior flying considerably lower then any plane should be. we immediately thought it was odd, being that we could both see the object fairly clearly: it was seamless, silver and reflective, and made no noise, although it flew at a heinpusly high rate of speed across the entire expanse of southern sky in under 10 seconds. although distance was hard to judge, it looked very large and perfectly cigar shaped. we immediately felt uncomfortable without knowing why, and we decided to go inside. this was not the first abnormal thing we had seen together, so our feeling of distress was odd and unusual to us. while seeing the object, we merely asked each other if the other was seeing it. afterwards, we were both very dazed, repeatedly asking each other if we had really just seen what we did.