Sky Quality Meter (SQM)

Description

🌠 Measure the Universe, One Star at a Time!

The Sky Quality Meter (SQM) is an affordable, compact device designed for astronomers to measure night sky brightness. With a Full Width Half Maximum (FWHM) of ~42°, it allows for quantitative comparisons of sky brightness across different sites. The included 9v battery and infrared blocking filter ensure precise measurements within the visual bandpass, making it an essential tool for both amateur and professional stargazers.