EXPLORE SCIENTIFIC 1.25" UHC Nebula Filter

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"

€58.00*

Prices include VAT. Shipping costs not included

Available, delivery time: 1-3 days

Product number: 0310215

GTIN/EAN: 4007922000077

WEEE-Reg.-Nr.: DE 34716369

With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners— but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.

Here is the table of contents of the comprehensive BRESSER Telescope Guide:

Introduction to Astronomy

With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.

Here is the table of contents of the comprehensive BRESSER Telescope Guide:

Introduction to Astronomy

The View of the Starry Sky

Foundations of Celestial Mechanics

Telescopes - Optics and Mechanics

Product information "EXPLORE SCIENTIFIC 1.25" UHC Nebula Filter"

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 NGC6992 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

WHAT'S INCLUDED

1x 1.25" UHC nebula filter

Colour:	black
Field of application [Telescope-filter]:	Filter for Deep-Sky Observing and Astrophotography
Material:	Glass, Plastic
Telescope filter type:	Nebula Filter

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