EXPLORE SCIENTIFIC 1.25" H-Beta Nebula Filter

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The high-quality Explore Scientific H-beta filter allows the observation of low-light deep sky objects

  • High-quality Explore Scientific H-beta Filter
  • Observation of low-light deep sky objects
  • Absorbs disturbing light from street lamps etc.

£50.00*

% £99.00* (49.49% saved)

Available

Product number: 0310235
GTIN/EAN: 4007922004532

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:

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:

Product information "EXPLORE SCIENTIFIC 1.25" H-Beta 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 bejond the solar systems enourmously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artifical light. The Explore Scientific H-beta filter uses a characteristic property of the so called emmission nebulae. Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements - in this case hydrogen. The Explore Scientific H-beta nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the emmission line of the hydrogen can pass the filter. The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the horsehead nebula is almost not visible with a 300mm telescope. By using this filter you can see the nebula and its 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.
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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The required interpupillary distance is then elegantly adjusted to a range of 58–74mm with the help of a linear sliding mechanism, with graduated marker, to help you find your ideal interocular setting quickly.  Self-centring helical eyepiece grips, rather than side-mounted thumbscrew eyepiece retainers are used, decreasing the chance of offsetting collimation of both eyepiece to each other.  The fact that this design of binoviewer uses a well-engineered linear slide mechanism to adjust interpupillary distance, rather than a cheaper-to-produce traditional hinged design also helps retention of collimation.Which objects can be observed with this accessory?Actually, all objects that were previously observed with the telescope in question, but only monocularly with one eye. Because there is no magnification factor at the binoviewer, even low magnifications can be achieved. This makes not only the moon, planets and globular clusters, but also the brighter deep-sky objects very interesting observation targets. The use of two eyes leads to a more relaxed view than using one eye alone.  Although true depth of field viewing at infinity is a little beyond most telescopes and binoviewers, users will note how the human brain attempts to impose depth of field ("3d-like") effects on stereo views through binoviewers.  The biggest difference that most observers comment upon when comparing views through binoviewers like these, as opposed to single monocular eyepiece views, is the extra detail that can be seen in most observable targets.  Relaxed viewing and extra detail in objects are the two main benefits of binoviewing, which the BRESSER Bino Viewer Deluxe 1.25'' delivers in abundance.Also ideal as an accessory for solar telescopesA very special application is the use of the BRESSER BinoViewer Deluxe in combination with all solar telescopes. The spherical shape of the sun with all its surface details is shown very impressively.  The depth of field effects of seeing filaments silhouetted against the solar surface are particularly enjoyable to observe.Important note: Do not use the BRESSER Binoviwer Deluxe without a suitable solar telescope or a safe solar filter in front of the telescopes objective lens . Otherwise, there is an acute risk of going blind.High-quality mechanics and materialsThe entire BRESSER BinoViewer Deluxe is made of high-quality materials. Except for the outer plastic covers all components are made of anodised aluminium. Particularly remarkable are the low-backlash sliding mechanism for adjusting the interpupillary distance and the precise rotary clamping of both eyepiece adapters. The wide clamping surface holds the eyepieces in place securely and also centres them automatically on the optical axis. The one-sided dioptric adjustment has a backlash-free helical drive and enables the finest corrections. For safe transport a high-quality hard-shell transport case is included in the scope of delivery.Which eyepieces can be used?All eyepieces with a 1.25'' barrel and a field stop of up to 22mm. Depending on the interpupillary distance the outer diameter of the eyepiece housing should not exceed a value of approximately 50 mm.Filter thread 1.25'' availableNo 2nd filter sets are necessary to operate the BRESSER Binocular Approach Deluxe. The desired colour or nebula filter can be screwed directly into the 1.25'' nosepiece. in this configuration, when changing the eyepieces to affect a change in magnification, no swapping of filters is necessary.  Unique mirror-lens system with Ohara (Japan) lanthanum glass material The BRESSER Binocular Viewer Deluxe is equipped with a unique mirror-lens system. This has the advantage of higher light transmission and less color aberration. The resulting image is simply brighter and sharper. To achieve this the exclusive Ohara (Japan) lanthanum glass material has been used and in addition all optical surfaces are equipped with a full multi-layer broadband coating. Finally the beam-splitting mirror has a 99% dielectric coating and completes the excellent optical design.FEATURESEnables binocular observations with all telescopesRelaxed and comfortable viewingThree-dimensional viewing experienceSuitable for all telescopes with 1.25'' eyepiece connectionNo additional light path requiredNo magnification factor at the binocular attachmentEven low magnifications with large fields of view are achievableFor observing moon, planets and deep sky objectsPrecise and robust mechanicsSliding mechanism to adjust the interpupillary distanceDioptric compensation via fine helical driveWide eyepiece rotation clamp with automatic centeringFilter thread 1.25'' (M28.5 x 0.6mm) availableLens and mirror design made of finest Ohara (Japan) lanthanum glass materialAdvanced broadband multilayer coating on all optical surfaces99 % dielectric-coated beam-splitting mirrorHigh-quality hard-shell carrying case includedWHAT'S INCLUDEDBino Viewer DeluxeDust capsCarrying case 

£410.00*
BRESSER 6-day 4CAST PRO SF 7-in-1 Wi-Fi Weather Station with Solar-powered Sensor
Stay on top of the weather with the BRESSER 6-day 4CAST PRO SF 7-in-1 Wi-Fi weather Station with a solar-powered sensor! The weather station displays a 6-day weather forecast with maximum/minimum temperature readings, and also tells you the chance of rain. It also features a 10-inch colour display, which ensures that all the weather stats are easy to read. The modern Wi-Fi weather station with a solar-powered sensor obtains the forecast data via the Internet from the ProWeatherLive platform. In addition to the weather forecast, the weather station also displays the local visibility and cloud cover. Eco-friendly weather station with solar-powered sensor, ideal for amateur meteorologists The weather station comes with a solar-powered outdoor sensor, which is powered by solar energy and measures temperature, humidity, wind speed, wind direction, precipitation, UV level and light intensity. Simply align the large solar panel with the sun according to your location. The measuring device needs about 4 hours of direct sunlight (100,000 lux) a day. There isn’t much sun around? Simply insert 3 AA batteries (not included) as a back-up during installation, and they will take care of the power supply. All the measurements will appear on the screen of the base station, which can be located up to 150 metres away. Wi-Fi weather station with feature-packed base station The base station of the 6-day 4CAST PRO SF weather station features a stylish design and displays the data received from the solar-powered sensor. It also takes its own readings via the built-in thermo/hygro sensor, which measures the ambient indoor temperature, humidity and air pressure. Together with the maximum/minimum memory, this enables you to keep an eye on the indoor climate and effectively prevent mildew and excessively dry air. Outdoor temperature, precipitation and more – you can also view the maximum/minimum readings for the other measurements made by the solar-powered sensor. Share weather data and use it with your smart home Access the measurements from your solar-powered sensor remotely and share them with others: with a few clicks, you can send your weather station data to the ProWeatherLive platform. If you have a smart home, you can also make use of the German-language portal AWEKAS, which allows you to transfer measurement data from the solar-powered sensor to your smart home system free of charge. Simply follow the link below to set up the weather station for your smart home system: https://www.awekas.at/for2/index.php?thread/17080-software-api-stations-api-beschreibung-beta/ Never lose track of time In addition to its elegant, contemporary design, the 4CAST PRO SF Wi-Fi weather station allows you to keep track of the time, date, day of the week and moon phase via the large display. For people who enjoy watching the sunset or observing the moon, the weather station also displays the sunrise/moonrise and sunset/moonset times.  Solar-powered weather data: Stay informed of the weather with the BRESSER 6-day 4CAST PRO SF 7-in-1 Wi-Fi weather station with a solar-powered sensor! BASE STATION FEATURES 6-day weather forecast (today and 5 following days) Large 10” colour display with stylish design Wi-Fi connection for sharing local weather data on platforms such as ProWeatherLive, AWEKAS, Weather Underground or WeatherCloud Forecast for maximum and minimum temperature and chance of rainfall via the ProWeatherLive server Local visibility and cloud cover via ProWeatherLive server Indoor temperature (°C/°F) and humidity Displays precise measurement data from the 7-in-1 solar outdoor sensor (Outdoor temperature and humidity, wind speed, wind direction, precipitation, UV level, light intensity) Weather index (perceived outdoor temperature, dewpoint, windchill factor and heat index) Gusts and average wind speed Beaufort index (scale for measuring wind speed) Sunburn time (in mins) Air pressure Weather data calibration Weather alarm function via ProWeatherLive server Maximum/minimum value memory (daily/total) Backlight with automatic dimming function Displays the time, date, day of the week and moon phase Sun/moonrise, sun/moonset 7 languages for days of the week (EN, DE, FR, ES, IT, NL, RU) Supports firmware updates Supports up to 7 additional sensors (not included, see accessories) Mounting options: Can be placed on tabletop with built-in stand or wall-mounted Power supply: Mains plug (included), CR2032 back-up battery (not included) Dimensions: 219 x 200 x 26 mm FEATURES OF 7-IN-1 OUTDOOR SENSOR Powered via a large movable solar panel In case of insufficient sunlight operation via 3x AA batteries (not included) Measures the temperature and humidity Measures the wind speed, wind direction and rainfall Measures the UV level and light intensity Power supply: solar panel, 3x AA batteries as back up (not included) Range: up to 150 m Dimensions: 390 x 174 x 465 mm DELIVERY CONTENT Base station Solar-powered outdoor sensor Power adapter Instruction manual

£301.99*
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.FEATURESenables the observation of emission nebulaeblocks almost the entire artificial lightonly the two emission lines of hydrogen and oxygen passes the filterWHAT'S INCLUDED1x 1.25" UHC nebula filter

£58.00*