Answer:
Not very. The brightest star Alpha Phoenicis [See Link] has an Apparent Magnitude [See Link] of only 2.6.
For reference.
The brighter an object appears, the lower the value of its magnitude.
Apparent Magnitude -12.6 (Yes negative) = The brightness of a full moon.
Apparent Magnitude 3 = Faintest stars visible in an urban neighborhood with the naked eye.