Sky Quality Meter-L
An affordable meter for measuring sky brightness for astronomers! The "Sky Quality Meter-L" measures the brightness of the night sky in magnitudes per square arcsecond with unprecedented sensitivity in a handheld meter!
Uses
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Find out how good the night or site really is.
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Compare the sky brightness at different sites quantitatively.
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Document the evolution of light pollution in your area.
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Monitor sky brightness through the night, night-to-night, and year-to-year.
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Determine which nights show the greatest promise for finding the 'faintest fuzzies'!
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Calibrate the effect of sky brightness on qualitative measures such as the Bortle Scale.
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Investigate how sky brightness correlates with the solar cycle and month-to-month sunspot activity.
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CCD users can make a correlation between the SQM reading and when the background reaches some ADC level.
Features
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Audible signal while measurement is in progress.
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Sky brightness displayed in visual magnitudes per square arcsecond.
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Infrared blocking filter restricts measurement to visual bandpass.
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Temperature in both Celsius and Fahrenheit as well as model number and serial number can be displayed with different button press sequence.
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Precision readings at even the darkest sites.
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Power-saving features designed in for maximum battery life.
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Reverse battery protection.
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The Half Width Half Maximum (HWHM) of the angular sensitivity is ~10°.
- The sensitivity to a point source ~19° off-axis is a factor of 10 lower than on-axis.
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Maximum light sampling time: 80 seconds.
Delivery contents
Products specifications
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Power Supply
|
9V battery |
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Height
|
3.6" (92 mm) |
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Width
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2.6" (67 mm) |
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Thickness
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1.1" (28 mm) |
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Weight
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0.31 lb |
