While I was getting to work today I've heard an aircraft somewhere over my head. Turned my head up and saw sth like the one on the picture about 1000-1500m above.
The problem was the sun, shining hard straight into my eyes, so I couldn't see clearly.
The aircraft was white, so probably passenger one.
But the wings are bit strange as for a passenger jet aircraft. I didn't see any engines on the wings (honestly - didn't see engines at all), so it must have been a jet. And it sounded like a jet.
Anyone has an idea, what was it?