I was on party, someone celebrated his birthday. i need to tell that i wasn't drunk. so alcohol couldn't made me imagine this event and made me seeing it wrongly. i went to balcony where was also some other folks. when i entered balcony i looked in the sky. i saw star-like object (same size and brightness as jupiter). immediately when i looked at it, it started to losing brightness. it became weaker and weaker gradually. after 5 seconds it dissapeared. i didn't see it anymore. no one else didn't see it (or did but didn't tell anyone as me). i looked in the sky a few more times but there was no sleigh of it. there was no clouds in that area i am 100% sure. even if they were (but there were not) it can't lose brightness gradually, it just dissapeares. it wasn't jupiter nor saturn, they are in much lower elevation right now.