I’ve learned over the years when shooting at sunset not to stop once the sun has gone down. Shooting from a steady tripod will give you a chance to drop the shutter speed in order to capture the light, while keeping your images sharp and stable. 

I generally shoot landscapes using a tripod, regardless of the light conditions. I want my images sharp. However, a good rule of thumb I use for hand holding my camera is that once I have to go below 1/60 not to hand hold. Everyone’s ability is different but generally the body shakes when holding the camera for longer than 1/60. 

In this image, the sun had disappeared for while but I was able to capture the foreground as if it was day. A tripod and longer shutter speed are fun to play with to see what you can capture, pushing the physical limits.