Transparent object that shifted object feel like i seen it because of light pollution from the city of chicago

I was outside smoking a cigarette with my brother in-law. I was looking north of my location in the sky talking about the comet with him when i got a strange feeling to look behind me. When i looked behind me to the south in the sky above my house i noticed a object that i can explain and a transparent long-bow. The object i can only explain as clear with a glow or aura similar to a halo around something. Like a see through cloak. But it bended light. It traveled east from the west but as it moved steadily it shifted into a square but the same glow around it. It is a clear night and i was still able to see the big dipper through the object. How i can explain it better is as a glass cup in your hand sideways in the air you can see through the glass but you still see the outline of the cup.