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August 3, 2025

Al Grauer and Hannes Gröller

Catalina Sky Survey

University of Arizona

Night Sky Brightness

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Caption

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Caption

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Some of the Instruments CSS SQM Network

SQM-CFh

SQM-CCg

SQM-G96

SQM-Lab

SQM-MtL

SQM-V00

SQM-V06

SQM instruments data logging and real time

spectral response spans Johnson B and V

20 degrees FWHM

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CSS Telescopes as SQMs

G96 5 deg² spectral response similar to SQM

703 19.4 deg² spectral response redder than SQM

I52 0.3 deg²

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Cosmic Campground Nightly Data

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All Sky Camera at the Chiricahua Astronomy Complex (Alex Helms)
Data from Cosmic Campground IDSS left Mt Lemmon right

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G96 CCD data compared to SQM-G96 data

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CCD-703 data compared to SQM-V06 data