SQM FAQ

SQM logoSky Quality Meter Frequently Asked Questions


 


Copyright 2008 Unihedron Inc.


What is the difference between the SQM and SQM-L?



What kind of sensor is used in the Sky Quality Meter?



Do you provide a calibration certificate?



Does the Sky Quality Meter have an external port that can be connected to a PC?



What is the field of view for your device?



Do you have any benchmarks for linking magnitudes per square arc sec with the Bortle Scale?



How was the solid angle of the detected light chosen?



Have you measured the spectral response of the detector with the IR rejection filter? How closely does it match the response of the human eye?



Do you know the contribution from the Milky Way with the wide-angle of acceptance of your photometer? I would like to subtract the Milky Way if possible.



How does transparency affect the SQM readings?



How does zodiacal light affect the SQM readings?



What are "Magnitudes per Square Arc Second"?


Author: 
Anonymous
Last modified: 
Sunday, February 12, 2023 - 8:28pm