moving stars- what could this BE?

On August 1st 2008 at 9.35pm I was outside my house on the drive looking towards the horizon at the brightest star in the sky, this star is always there. Anyway, I started looking vertically above my head at the darker of the sky and it was full of stars that’s when I saw a MOVING star, this star was at the same level as the other stars *very high up*, but the odd thing is that it was moving slowly to the left then moving slowly to the right, I kept my eyes on it and my brother also saw this, we got very excited and nervous, the star was not flashing, but it was a more faded star. We saw lots of planes passing by and they were flashing red and white, we could tell that they were clearly planes, but we were freaked out by this moving star and we lost sight of it because my brother ran inside to call my mom, meanwhile I was outside staring at the moving star then I looked towards my mom and looked at the sky and lost sight of it because it faded away. I have never seen anything like this before and it was NOT a plane nor a satellite because this stars resembled all the other stars in the sky. The sky was pretty light near the horizon but higher up in the centre of the sky above my head it was dark.