Last weekend I did several nightscapes.
Pushing the envelope trying out new approaches.
This one is 3 panels of 30 seconds ISO3200 Zeiss Loxia 21mm at F2.8 tracked on a Polarie and a panoramic head.
The landscape is Irix 15mm F2.4 3 x 121 seconds ISO3200 untracked.
I used Lightroom, Sequator and Photoshop for processing. Sony A7r2. I used a dark as well.
http://www.pbase.com/gregbradley/image/166315999/large
Greg.