Value of 5-band resistor (current sense)
Color code standards are defined in IEC 60062.
See also wikipedia: Electronic Color Code 

Generally speaking, the first, second [,third] band represent a digit each, followed by a multiplier, tolerance [, temperature coefficient]. Third digit and temperature coefficient are both optional.
Given that gold cannot represent a digit (but only multiplier or tolerance), you have:

digit, digit, multiplier, tolerance, temp.coefficient.

Black has no tolerance assigned, which makes it the second digit in your case.

Applying this to your resistor leads to:
5 | 0 | 0.1 | 0.5% | 15ppm/K

Thus, you want a 5 Ohm resistor.

EDIT:
It's 0.5 Ohm (multiplier 0.01), given that the middle band is silver (as stated in the question). It looked golden to me, but it's difficult to tell from the picture. However, the above applies to 'silver', where I've referred to 'gold'.