Airy,
Here is a scene with no added light other than the stars ... and some light pollution from behind the hill, I'll see if i can find another one in a darker location
my intention has always been to capture the stars, not the ground lit by the stars, but it does sounds possible
exposure was 30 sec f2.5 iso 3200 with the D800
1. unedited, neutral profile, lightroom
2. added a graduated filter to the ground, pulling exposure +3 , contrast +100, clarity +50
3. found another without added light on the ground, 20 sec iso 1600 f1.8, +3 EV on the ground, significantly noisier , and magenta tones