This is a panorama of 5 vertical images shot with Nikon D810 20s at f2.8, ISO 12800. The night was not pitch dark. I used Formatt Hitech Grad ND 0.9 Filter to reduce light pollution. Raw images processed in Adobe Lightroom and panorama stitch was done manually in Adobe Photoshop CS6. Tonal contrast adjusted in Nik Color Efex Pro 4.