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The EXPLORE SCIENTIFIC UHC filter allows the observation of low-brightness deep sky objects
- UHC Filter for Emission Nebulae
- Blocks almost all artificial light
- Emission lines: Hydrogen Alpha and Oxygen III
- Thread: 1.25"
- Uzrakstīt atsauksmi
Bresser EXPLORE SCIENTIFIC 1.25 UHC Nebula Filter
Produkta kods: 46801
SKU: 46801
EAN: 4007922000077
Ražotājs: Bresser
Stāvoklis: Jauns
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| Produkta veids | Teleskopa aksesuāri |
Oriģinālais preces apraksts no ražotāja (oriģinālā valodā)
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar systems enormously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artificial light .
The EXPLORE SCIENTIFIC UHC filter uses a characteristic property of the so called emission nebulae . Those objects glow in special colours, their emission lines. Those emission lines are linked to chemical elements - in this case hydrogen at 486nm and 656nm, plus oxygen at 496nm and 501nm. The Explore Scientific UHC nebula filter blocks all other colours (and thereby nearly all of the artificial light) and only the emission line of the hydrogen and oxygen can pass the filter. The result is astonishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburban skies for example the Owl-nebula M97 , the Veil-nebula NGC699 2 or even the bright Dumbell-nebula M27 are not clearly visible. By using this filter you can see the nebulae and their structures without problems. A must for every visual observer. The EXPLORE SCIENTIFIC nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
FEATURES
The EXPLORE SCIENTIFIC UHC filter uses a characteristic property of the so called emission nebulae . Those objects glow in special colours, their emission lines. Those emission lines are linked to chemical elements - in this case hydrogen at 486nm and 656nm, plus oxygen at 496nm and 501nm. The Explore Scientific UHC nebula filter blocks all other colours (and thereby nearly all of the artificial light) and only the emission line of the hydrogen and oxygen can pass the filter. The result is astonishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburban skies for example the Owl-nebula M97 , the Veil-nebula NGC699 2 or even the bright Dumbell-nebula M27 are not clearly visible. By using this filter you can see the nebulae and their structures without problems. A must for every visual observer. The EXPLORE SCIENTIFIC nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
FEATURES
- enables the observation of emission nebulae
- blocks almost the entire artificial light
- only the two emission lines of hydrogen and oxygen passes the filter
- 1x 1.25" UHC nebula filter
| Produkta veids | Teleskopa aksesuāri |
