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UNIHEDRON
Measurement of the night sky brightness
Available within 5-14 days
This includes products that we do not keep in stock but are only available on request or have been announced by the manufacturer. For orders of these items, a deposit is required, proportional to the total value of your order. As soon as we receive your order, we will notify you by e-mail or telephone, for the exact delivery time and the amount of the deposit.
A particular innovative product for the stargazer - within seconds you can determine the sky brightness using this cigarette-box sized instrument. No "faintest star" estimates any more, no influence of daily condition or vision impairment by the observer.
A high sensitive sensor measures the integrated sky brightness around a solid angle of 42° (FWHM) around the central axis of the instrument. The value will be displayed in magnitudes per square arcseconds.
Using a lens, a sky region of interest gets focused:
While you get an integrated mean value when scanning the sky with the standard Sky Quality Meter SQM, here you use a lens to concentrate on a smaller region of interest to get a more precise value in a particular direction (20°).
Possible applications are for example the unbiased comparision between different sites, the assessment if it is worthwhile to photograph a particular object tonight, the documentation of progressing light pollution and much more.
The sensitivity bandwith of the detector covers the visual range. The measurement itself starts after pressing the trigger button and the maximum time needed is about 8 seconds. The current temperature is displayed as well to cover up slight drifts of different measurements caused by temperature.
Size: 9,5 x 6 x 4 cm, weight: 105 grams. Incl. 9V block battery.
Alternatively, the SQM is also available in the following versions:
SQM without lens
SQM-LU with USB connection for network operation
SQM-LE with Ethernet connection for network operation
All orders we receive until 15:00 concerning products in our warehouse, processed on the same day
Well-trained scientific and technical personnel are available to you at any time, to solve the questions and concerns about your equipment.
If you are not satisfied with the product you received, you can return it within 14 days of receipt.
Experience you can trust. Planetarium of Thessaloniki is the largest supplier of astronomy goods in the Balkans
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