EXPLORE SCIENTIFIC 2" O-III Nebula Filter 6.5nm

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 O-III filter uses a characteristic property of the so called emission nebulae. Those objects glow in special colours, the so called emission lines. Those emission lines are linked to chemical elements - in this case oxygen. The EXPLORE SCIENTIFIC O-III nebula filter blocks all other colours (and thereby nearly all of the artificial light) and only the two emission lines of the 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 veil nebula NGC 6992 is almost not visible with a 200mm 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.FEATURESenables the observation of so called emission nebulaeblocks almost the entire artificial lightonly the two emission lines of ionised oxygen passes the filterWHAT'S INCLUDED1x 2" O-III 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 system enormously. Depending on the type of celestial object, it is possible to increase the contrast dramatically by blocking the interfering artificial light. The EXPLORE SCIENTIFIC S-II filter uses the property of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case ionized sulfur. The EXPLORE SCIENTIFIC S-II nebula filter blocks all other colors (and thus almost all artificial light) and lets only the emission lines of ionized sulfur at 672 nm through. The effect is amazing: suddenly, nebulae become visible in places that appear completely empty without the filter. In slightly brightened skies many planetary nebulae, emission nebulae and supernova remnants can be seen without any difficulties when using this filter. A must for every visual observer and for astrophotography. EXPLORE SCIENTIFIC nebula filters come with an individual test report - so you can be sure to get high quality filters. FEATURES Simplifies the observation of planetary nebulae, emission nebulae and supernova remnants Blocks almost all artificial light Lets only the emission lines of ionized sulfur at 672 nm pass Transmission bandwidth: 12 nm Allows for more contrast in faint deep sky objects Ideal for use near cities, in slightly brightened skies Individual test certificate included to guarantee you receive a premium filter SCOPE OF DELIVERY 1x 1.25'' S-II 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 system enormously. Depending on the type of the celestial object, it is possible to dramatically increase the contrast by blocking annoying artificial light. The EXPLORE SCIENTIFIC UHC filter "zeros in" on the wavelengths of 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 colour wavelengths (and thereby nearly all of 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 invisible from, without filters. In suburban skies, for example the Owl-nebula M97, the Veil-nebula NGC 6992 or even the bright Dumbell-nebula M27 are not clearly visible. Using this filter allows you to see nebulae and their structures in much finer detail. A must for every visual observer. The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.

Besides air turbulence, the brightening of the night sky is the biggest obstacle to observing faint objects beyond the solar system. Street lamps and other artificial lighting mean that the sky in human settlements is no longer really black. This affects the contrast and thus the perception of deep-sky objects. Depending on the type of celestial object, however, part of disturbing artificial light can be filtered out, making it easier to observe fainter targets.The EXPLORE SCIENTIFIC CITY LIGHT SUPRESSION - or CLS - filter uses the fact that the artificial lighting is not evenly distributed over the entire spectrum. These colours - in the case of the EXPLORE SCIENTIFIC CLS nebula filter, above all the typical colours of mercury and high-pressure lamps, used in street lighting - are suppressed, but the emissions of deep-sky objects are allowed through. With a slightly brightened sky, some relatively bright deep-sky objects are practically invisible with a telescope, for example the large galaxy M101. Using this filter makes observation much easier. A must have for any visual amateur astronomer.  The CLS can also be used as a useful photographic filter - helping to improve the quality of your telescopic deep sky photos.The EXPLORE SCIENTIFIC nebula filters are delivered with an individual test report - so you can be sure of receiving high-quality filters.SPECIFICATIONS:eliminates disturbing light - e.g. from street lightingenables observation of faint deep sky objectsWHAT'S INCLUDED:1x nebula filter

Discover the possibilities and forge new paths with the Nebula EXOS-2 Goto Mount!Mount and TripodThe BRESSER EXOS-2 is a stable mount with a high load capacity and precise tracking for visual observations and astrophotography. Double radial groove ball bearings in both axes ensure precise, smooth motion, and the RA axis bearing has been optimized to reduce backlash. Additionally, the tripod is reinforced to further suppress vibrations. The BRESSER EXOS-2 can be loaded with up to 13 kg of optics for purely visual use depending on the length and purpose!Nebula: the powerful and flexible Goto systemWith the new Nebula Goto system, set off for new astronomical shores. This system offers several control options. You can operate the mount directly via its own Nebula control interface using your smartphone or tablet (iOS and Android supported). Alternatively, you can also use a planetarium software such as SkySafari. Manual control remains an option as well. For this, a hand box for minor corrections or simple control commands is included.Furthermore, with the BRESSER Nebula Goto Kit, you can connect your laptop or PC directly via WIFI or LAN cable (recommended for faster data transfer) to the Nebula control unit. This not only gives you full control over the mount but also allows you to connect various devices such as cameras, motor focus, filter wheels, etc. directly to the control unit via various USB ports. This eliminates the need to connect each device to your computer via cables. The pre-installed program KStars / EKOS lets you comfortably control all devices from your PC or laptop. Electronic polar alignment or guiding can also be easily achieved with the Goto Kit, provided you have a camera connected. You are also not limited to the software of the Nebula control unit. Thanks to the installed ASCOM Alpaca driver, you can use your own programs on your computer to control the mount - whether it's Stellarium or N.I.N.A. The two stepper motors with a belt drive ensure a smooth, direct drive of the two axes. It's only important to have a good balance. FEATURES EXOS-2 MOUNT Stable parallactic mount with fine drive in both axes Ball bearings in both axes for more precise movements Sturdy height-adjustable stainless steel tripod (Min. 69 cm / Max. 109.5 cm) Load capacity of up to 13 kg Spirit level for easy horizontal alignment Polar height scale for setting the latitude Polar scope with optional lighting (item no. 4964212) Tripod weight: 4.7 kg Mount weight: 5.6 kg (without counterweight) Total weight including counterweight: 14.8 kg Batteries: not included FEATURES GOTO SYSTEM Belt drive for a more precise, quieter tracking Stepper motors with high resolution (0.36´/microstep) Hand control box for direct control of the mount Virtual hand control box for smartphones and tablets PC control – ASCOM compatible USB ports for cameras, motors, filter wheels etc. SCOPE OF DELIVERY BRESSER EXOS-2 Mount Polar finder scope with optional illumination Stainless steel field tripod with accessory tray 1x 4.5-kg counterweight 2 stepper motors for the axes (RA and DEC) Raspberry Pi control unitBasic handbox 230V / 12V / 3 A power adapterConnection cableManual for download

Stable observatory column for AXD and AXD2 mount. The column is also suitable for the AXJ mount with an additional adapter. FEATURES Stable column for AXD mount Designed for observatories Minimal vibrations Column dimensions: 139.8 mm Ø x 881.5 mm long Thickness: 3.8 mm Cross-shaped feet: 450 mm radius Weight: 24.5 kg DELIVERY CONTENT AXD-P85 DX observatory column Screws Mounting tool

This telescope starter set leaves nothing to be desired. The BRESSER Messier AR102/1000 EXOS2 GOTO is a modern astronomical telescope, here including an extensive accessory set at a special price. It guarantees you an uncomplicated start and many possibilities for discovering the universe. NEW - now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation. Ambitious beginners and advanced observers alike will see the brightest objects outside our solar system with the BRESSER Messier AR-102. Watch details in the Great Orion Nebula from the astonishing distance of 1500 light-years (14.200.000.000.000 km)! The rock-solid mount provides relaxed views even at high magnifications; rigidity and usability are setting new standards in this price range. Due to the sophisticated mount you can even start taking pictures of the moon, planets or deep sky objects. You will never give the BRESSER Messier AR-102 away voluntarily.This telescope set also includes the following accessories: Deluxe smartphone holder for photographing through the telescope (Art-No. 4914914)2 Plössl eyepieces with focal lengths of 6.5 and 15mm for higher magnifications (Art-No. 4920206+4920215)Color filter set No.1 , Light-Yellow, Orange, Blue, Grey ND0.9 (Art-No. 0310291)BRESSER HD Moon & Planetary USB Camera & Guider 1.25 inch (Art-No. 4959040)ASTRO R-LITE Red Light Flashlight (Art-No. 0340100)FEATURESOptical design: refractor telescopeLens diameter: 102mm / focal length: 1000mm / F/9,8Maximum recommended magnification: 204xTelescope Starter Kit contains many additional accessoriesTelescope for night and solar observationDetails of the moon, sun and planets visible (only with protective solar filter) Also suitable for bird watching and terrestial observationObserve sunspots, eclipses and planet transits (only with protective solar filter) Additional 2 eyepieces with focal lengths of 6.5 and 15mm for higher magnificationsPhotographing objects with your own smartphone Increased visibility of object details through the use of color filters Take photos and videos conveniently with Bresser USB HD camera Orientation and reading of star maps at night by red flashlightSmartphone holder as navigation aid in the night skyHigh end Hexafoc-focuser with 2,5 inch free inner diameterAll telescope axes supported by ball bearings for smooth trackingAdjustable polar finder scope with optional illuminationST-4 compatible autoguider interfaceAll aluminium cast parts with high end powder coatingBrass worms with ball bearingsGoTo Mount with motors and hand box controller, for easy finding and guiding moon, planets, stars and much moreBubble level for easy tripod setup8x50 straight through viewfinder with reticle; optimized finder socket for comfortable use31.7mm (1.25 inch) diagonal mirrorCradle rings with handle and integrated piggyback camera holder (1/4 inch thread)Dovetail plate with stainless steel rail50,8mm (2 inch) to 31,7mm (1,25 inch) adapter with integrated T2 thread (T2-adapter ring for your camera is needed)SCOPE OF DELIVERYTelescope with mount and tripod 26mm Super Plössl eyepiece 31,7mm(1.25inch)31,7mm (1.25inch) Zenith mirrorintegrated 31,7mm and T2 adapterTube clamps with dovetail rail for GP-LevelHandle and camera holder6x30 optical finderAdditional 2 eyepieces with focal lengths of 6.5 and 15mmDeluxe smartphone holder for taking pictures though the telescopeColor filter set No.1 , Light-Yellow, Orange, Blue, Grey ND0.9 , Durchm. 31,7mm (1.25inch) Bresser HD WIFI Camera diam. 31,7mm (1.25inch) Android+iOS ASTRO R-LITE Red light FlashlightSolarix solar filter film A4 for self construction of a lens solar filter Smartphone holder as navigation aid in the night skyAstronomy software Stellariumrotatable star map