Unihedron SQM-LU-DL: The names Unihedron and Sky Quality Meter have become synonymous with measurement of sky brightness. Indeed, it’s hard to imagine a tool that has had greater impact on quantification of local light pollution. Unihedron’s original SQM set the standard and has since evolved into a comprehensive range of […]
Unihedron SQM-LU-DL: The names Unihedron and have become synonymous with measurement of sky brightness. Indeed, it’s hard to imagine a Sky Quality Meter tool that has had greater impact on quantification of local light pollution. Unihedron’s original SQM set the standard and has since evolved into a comprehensive range of […]
First introduced in 2009, APT stands for “Astro Photography Tool” and is the brainchild of Ivo Stoynov, who calls the software a “Swiss army knife for your astro imaging sessions.” The software draws upon the knowledge of many astro photographers from all over the world, as well as from the […]