What is -288 degrees Celsius in Fahrenheit?

The formula for changing Celsius into Fahrenheit is:  F  =  (9/5)C + 32

If  C = -288  then:  F  =  (9/5)(-288) + 32     --->     F  =  -486.4

No such thing as -288 degrees C, it only goes down to -273 absolute zero