(Monochrome version using Summed Luminance)
Distance: 1500ly

Keywords:
AS/P=1.88;Barlow=none;bin-2x2;Cropped;Darks=0;Dithered not;Exp=480sec - 1;Exp=600sec - 2;f/7;Filter=Optolong L-Pro;FL=840;Flats=0;fr=none;Horsehead;IPdev;IR-Mod;ISO=800;n=3;Nikon D5300a;Orion HDX110;PBase;QHY5L-II mono;Radially Offset Counterweight;Show;Sky-Watcher Esprit 120ED APO;Slideshow Astro;Slideshow Astro Ext;SMAL Demo;Stellarvue F50M2;Summed Luminance;TOPAZadj;Uploaded;

20180115_Horsehead-SumLum_CombAvg-IPddp-TOPadj-TPadj2.jpg