UNO analog input voltage limits

Using Arduino Sensors
#1

Would an analog input pin on an UNO be damaged if 12V happens to be applied to it through a 50K resistor?

Normally it will see between 0 and 5V, but it is possible that it may see as much as 12V. I am not using AREF because the only valid times I will be taking readings will be while the pin voltage is 0-5V. There will be a 50K resistor between the pin in the voltage to be read.

Thanks.

#2

The 50K should limit current to 0.2mA, and the clamp diodes are supposedly good for a mA, so theoretically the IO pin should not be damaged.

#3