My Astraeus Flights (Merged)

Hi,
On wednesday the 24th of august (this week) iam flying on my first astraeus airlines flight from manchester terminal 2 to bergamo, italy. And return the following week. The flight is AEU471 outbound, departing 15:55 and AEU472 inbound, departing 20:10.
Could anyone please tell me the aircraft operating the route as on my ticket it says i am in P class outbound and Y inbound. So I thought P could be premium like on the astraeus 757, as Y is economy.

Also does anyone know where astraeus check in in Terminal 2 at MAN.
Any info would help!

Thanks a lot,