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Sky Watcher 20in Stargate Truss-Tube Goto Dobsonian Telescopeinstant Rebate Brand Sky Watcher

Sky Watcher 20in Stargate Truss-Tube Goto Dobsonian Telescopeinstant Rebate Brand Sky Watcher ขายดีในโลกออนไลน์ ซึ่งเป็น Sky Watcher 20in Stargate Truss-Tube Goto Dobsonian Telescopeinstant Rebate Brand Sky Watcher ที่เหมาะสมกับอีกทั้งประสิทธิภาพรวมทั้งราคา อีกทั้งการจัดส่ง พวกเราก็จัดส่งอย่างเร็ว ให้การช้อปปิ้งออนไลน์ของคุณ เป็นมากกว่าการซื้อของ 

Content:
  1. Sky Watcher 20in Stargate Truss-Tube Goto Dobsonian Telescopeinstant Rebate Brand Sky Watcher.
  2. Opticron Mm3 60 Ga/45 Travelscope + Hdf T 15-45x Travelscope Kitnewly Added Save 13% Brand Opticron.
  3. Explore Scientific 16in/406mm Truss Tube Dobsonian Telescopefree Gift Available Save 55% Brand Explore Scientific.
  4. Celestron Edgehd 925 9.25" Optical Tube Assembly 91040-Xlt, Ota Telescopefree Gift Available Save 40% Brand Celestron.
  5. Sky Watcher Esprit 80mm Ed Triplet Apo Refractor Telescope S11400free Gift Available Brand Sky Watcher.
  6. Celestron Cgx Rowe-Ackermann Schmidt Astrograph Telescopefree Gift Available Save 38% Brand Celestron.
  7. Celestron Cgx Schmidt-Cassegrain Telescopefree Gift Available Save Up To 46% Brand Celestron.
  8. Celestron Edgehd 1400 14in Optical Tube Assembly 91060-Xlt, Ota Telescopefree Gift Available Save 41% Brand Celestron.

Sky Watcher 20in Stargate Truss-Tube Goto Dobsonian Telescopeinstant Rebate Brand Sky Watcher.

Product Description

Product Info for Sky Watcher 20in Stargate Truss-Tube GoTo Dobsonian Telescope

Sky-Watcher brings to you the ultimate DOB experience with the StarGate 18 Dobsonian! Given its remarkable light gathering power, you will be able to catch the most subtle night sky features with your naked eyes. The sturdy giant is reasonably light (110Lb) despite its dimensions, and being easily assembled (30-minute setup time), the whole scope boasts remarkable transportability. If you have the appetite for exceptional planetary and deep space observation, then don't miss out on this high-quality Newtonian system.

PARABOLIC PRIMARY MIRRORS

Features High-Quality Parabolic Primary Mirrors to eliminate spherical aberrations inherent in 'fast' focal length reflectors with spherical primary mirrors. The mirrors are parabolized to bring all the light rays to the same focal point to give sharp, contrasty images, which are full of detail.

SKY-WATCHER DELUXE MIRROR COATINGS

Most reflectors today usually have a coat of aluminum as the mirror surface and then an overcoat of silicon monoxide or silicon dioxide to protect it. Silicon dioxide produces a much more durable coat than silicon monoxide but requires specialized equipment to apply it and is, therefore, more expensive. Protection is needed, because, in most reflectors, the mirror is open to the elements and deterioration of the reflective layer reduces the resolution of the telescope. ALL Sky-Watcher reflectors are Multi-Coated with Silicon Dioxide as a standard for Optimum Durability and Long Term Performance.

Specifications for Sky Watcher 20in Stargate Truss-Tube GoTo Dobsonian Telescope:

Included Accessories: 28mm LET eyepiece and 10mm eyepiece, 2.3lbs counter weights (3), Shroud, Truss clamps
Magnification: 72 - 1000 x
Objective Aperture: 508 mm
Focal Length: 2000 mm
Focal Ratio: 3.95
Color: Black

Features of Sky Watcher 20in Stargate Truss-Tube GoTo Dobsonian Telescope:

  • Fused conical primary mirror
  • Cellular secondary mirror
  • Dual speed 2 Crayford focuser
  • Two section truss poles (compact transport)
  • Minimalist
  • all metal construction
  • Fast f/3.95 optics for short eyepiece heights
  • 20 provides 56% more light than a 16 telescope
  • 94% reflectivity coatings
  • Freedom Find
  • dual encoders
  • SynScan with 42,000+ object database

Package Contents:

  • Sky Watcher 20in Stargate Truss-Tube GoTo Dobsonian Telescope

Opticron Mm3 60 Ga/45 Travelscope + Hdf T 15-45x Travelscope Kitnewly Added Save 13% Brand Opticron.

Product Description

Product Info for Opticron MM3 60 GA/45 Travelscope + HDF T 15-45x Travelscope Kit

Opticron MM3 60 GA/45 Travelscope + HDF T 15-45x Travelscope Kit is a dynamic tool that is sure to help you reach past the stars. These Telescopes will give top-of-the-line reflecting, refracting or catadioptric optics that are just right for you. With out-of-this-world components, like sophisticated magnification power and a quick light gathering functionality, Opticron MM3 60 GA/45 Travelscope + HDF T 15-45x Travelscope Kit delivers one of the best astronomy experiences in the universe. Opticron is an industry leader that has been known to soar above the rest, when it comes to offering the high quality that just about every science enthusiast is looking, far and wide, for. At OpticsPlanet, we ensure that you will find some of the best optical instruments for your buck, and Opticron MM3 60 GA/45 Travelscope + HDF T 15-45x Travelscope Kit guarantees many years of top-notch overall performance and dependability. For an remarkable way to be assured that you have made the very best choice in viewing the stars and beyond, don't be afraid to get the Opticron MM3 60 GA/45 Travelscope + HDF T 15-45x Travelscope Kit.

Specifications for Opticron MM3 60 GA/45 Travelscope + HDF T 15-45x Travelscope Kit:

Magnification: 15 - 45 x
Finish: Black
Objective Lens Diameter: 60 mm
Color: Black
Optical Coating: Fully Multi-Coated

Package Contents:

  • Opticron MM3 60 GA/45 Travelscope + HDF T 15-45x Travelscope Kit

Explore Scientific 16in/406mm Truss Tube Dobsonian Telescopefree Gift Available Save 55% Brand Explore Scientific.

Product Description

Product Info for Explore Scientific 16in/406mm Truss Tube Dobsonian Telescope

Explore Scientific 16" (406mm) Truss Tube Dobsonian. 1826mm Focal length f/4.5. 2" two-speed focuser with 10:1 speeds. Deluxe Red-dot finder. Two large radial fans for fast thermal equilibrium. Lightweight and portable two-piece design allows the primary objective to store in a unique self contained aluminum housing with a lid for transport and the secondary fits inside the aluminum rocker box. Primary mirror inside mirror box weighs 52.5 lbs. Primary, secondary and truss tube assembly weighs 66.1 lbs. Rocker box weighs 22 lbs. Total weight 88.1 lbs.

Package Contents:

  • Explore Scientific 16in/406mm Truss Tube Dobsonian Telescope

Celestron Edgehd 925 9.25" Optical Tube Assembly 91040-Xlt, Ota Telescopefree Gift Available Save 40% Brand Celestron.

Product Description

Product Info for Celestron EdgeHD 925 9.25" Optical Tube Assembly 91040-XLT, OTA Telescope

The Celestron EdgeHD 925 9.25" Optical Tube Assembly 91040-XLT is available for use with your favorite mount. This 9.25 inch Optical Tube Assembly (OTA) is made to the same exacting standards as those used on all high quality Celestron Telescopes. All optical surfaces are coated with Celestron 's high efficiency StarBright multi-layered coating group. The OTA is equipped with the same dovetail mounting bar used on the CGE and Advanced Series for easy attachment to a variety of popular mounts. Every tube assembly is made, assembled and quality control tested at the Celestron manufacturing facility in Torrance, California.

These Edge HD 9.25-inch Optical Tube Assemblies feature an optical system that takes all of the compact power popularized by the Schmidt Cassegrain Telescope (SCT) and combines it with an improved High Definition Optical System for wide field, astrograph quality images. As a visual instrument, EdgeHD optics deliver pinpoint images even with your widest field eyepiece. You can search for all of the Messier Catalog objects, and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. For astroimaging, the EdgeHD optics produce aberration-free images across your favorite CCD or DSLR camera. All EdgeHD optics on the telescope are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial ccd detectors, allowing all stars to be in tight focus to the very edge of the chip. The EdgeHD 9.25" optics produces a focal plane almost 9 times flatter than the standard equivalent SCT telescope with diffraction limited stars across the entire Nikon D3 or Canon 5D field of view!

In addition to Celestron 's new optimized optical design, the EdgeHD 9.25in OTA has been redesigned to make sure you get the most from your optics each and every night. Among them include:

  • Mirror Support - Flexible tension clutches hold the mirror in place and reduce image shift when rotating the tube around the mount. The flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or chip).
  • Tube Vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 60 micron micro-mesh filter guaranteed to let warm air out without letting dust in.
  • Fastar Versatility -The EdgeHD are the most versatile imaging scopes available today. At its native f10 you can achieve the image scale necessary to capture the smallest of deep sky objects. With the optional reducer lens (coming soon) you can increase your field of view without sacrificing optical performance. A barlow gives you the added power for high resolution planetary, lunar and solar imaging. And of course all EdgeHD optical tubes are Fastar compatible for ultra fast f/2 wide field imaging. Each tube has been fitted with a removable secondary mirror and are opto-mechanically aligned on a laser bench to ensure they are axially symmetric in any configuration.
  • Easy Collimation - With precision machined mechanics and a spherical secondary mirror, EdgeHD optics can be collimated accurately and easily to guarantee that they perform to their potential every time you use them.

Specifications for Celestron EdgeHD 925 9.25" Optical Tube Assembly 91040XLT:

Optical Design: Aplanatic Schmidt
Aperture: 234.95 mm (9.25 in)
Focal Length: 2350 mm (92.52 in)
Focal Ratio: 10
Finderscope: 9x50
Optical Tube: Aluminum
Eyepiece 1: 23 mm (0.91 in)
Magnification 1: 102 x
Star Diagonal: 2" w/ 1.25" adapter
Optical Coatings: StarBright XLT Secondary
Mirror Obstruction: 3.35 in (85.09 mm)
Secondary Mirror Obstruction by Area: 13.1 %
Secondary Mirror Obstruction by Diameter: 36.2 %
Optical Tube Length: 22 in (558.8 mm)
Optical Tube Weight: 21 lb (9.53 kg)
Dovetail Compatibility: CGE Mount

Features of Celestron EdgeHD 925 9.25" Optical Tube Assembly 91040 XLT:

  • 9.25" EdgeHD Optical Tube Assembly
  • Aluminum Optical Tube
  • Celestron's premium StarBright XLT coatings
  • 2350mm focal length (f/10)
  • 23mm Axiom 2" eyepiece included (102x)
  • 9x50 finderscope to help accurately find objects
  • 2" diagonal provides more comfortable viewing position when observing objects that are high in the sky
  • Mirror Support Knobs hold the mirror in place and reduces image shift during imaging
  • Tube vents with integrated 60 micron mesh filter allowing hot air to be released from behind the primary mirror
  • Fastar Compatible optical tubes are equipped with a removable secondary mirror for fast f/2 ccd imaging
  • Includes dovetail rail compatible with CGE mount

Package Contents:

  • Celestron EdgeHD 925 9.25" Optical Tube Assembly 91040-XLT
  • 23 mm eyepiece (102x)
  • 9x50 finderscope
  • dovetail rail

Sky Watcher Esprit 80mm Ed Triplet Apo Refractor Telescope S11400free Gift Available Brand Sky Watcher.

Product Description

Product Info for Sky Watcher Esprit 80mm ED Triplet APO Refractor Telescope S11400

Sky Watcher Esprit 80mm ED Triplet APO Refractor Telescope S11400 automates the process of locating astronomical points of interest. With 80mm of light gathering resolution, this Telescope from Sky Watcher can supply bright images, and with quality eyepieces and a 900mm focal length, there is plenty of magnifying power. The Grade-A Crown and Flint glass yields pristine, high-contrast images of Saturn's rings, Jupiter's cloud belts, and wall-rimmed craters on the Moon by the hundreds. The Sky Watcher Esprit 80mm ED Triplet APO Refractor has a library of 4000 celestial objects, so just punch-in the object you want to observe and SynScan guides your Sky Watcher Esprit ED Triplet APO Refractor Telescope into position for viewing.

Specifications for Sky-Watcher Esprit 80mm ED Triplet APO Refractor:

OTA Weight: 8.8lbs.
OTA Length: 17.375" (fixed dew shield)
Back focus: 75mm
Optical Design: Refractor
Field Flattener: Included, thread-on
Aperture (mm): 80 mm (3.15 in)
Focal Length: 400 mm
Focal Ratio: 5
Highest Useful Magnification: 120 x
Optical Coatings: Fully multi-coated

Features of Sky Watcher Esprit 80mm ED Triplet APO Refractor Telescope w/ Fully Multicoated Lens:

  • 80 mm apochromatic 3-element refractor
  • 400 mm (f/5)
  • Fully multi-coated
  • Thread-on field flattener
  • 2.7" focuser w/micro focus
  • 2" Diagonal with dielectric coatings
  • 9x50 RA erect-image finderscope
  • Canon camera adapter
  • Tube rings with CG5 style dovetail bar
  • Aluminum foam lined case
  • 33mm image circle

Package Contents:

  • Sky Watcher Esprit 80mm ED Triplet APO Refractor Telescope with Helinear Track

Celestron Cgx Rowe-Ackermann Schmidt Astrograph Telescopefree Gift Available Save 38% Brand Celestron.

Product Description

Product Info for Celestron CGX Rowe-Ackermann Schmidt Astrograph Telescope

General Features 11" RASA optical tube assembly CGX computerized equatorial mount Astrograph Features Ultra-fast, 11-inch f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature. Cuts imaging time by more than half Expansive 43.3 optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52 mm for larger format sensors. Custom engineered linear brass focuser bearing reduces image shift, while dual-speed 10:1 FeatherTouch Micro Focus Knob provides the most precise focusing Quiet, high-output 12V MagLev fan reduces cooldown time and blocks dust Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras Computerized Mount Features All-new design. Sturdier and more rigid with quicker dampening time Increased load capacity to 55 lbs. Improved motors provide more torque, better slewing and tracking under heavy loads Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh Internal cabling for worry-free remote operation. Power input and accessory ports remain stationary while the mount slews to avoid snags Internal hard stops for both axes prevents cable tension and tripod strike Internal optical sensors on both axes for simple and safe remote operation Home sensors allow the mount to always start in the index position regardless of orientation before a power reset Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe Brand new control software developed in conjunction with PlaneWave Instruments for professional level control operation and imaging Software includes multi-point mount modeling for extremely precise pointing accuracy and many more additional features for remote astroimaging Wider tripod stance for improved stability Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3º-65º latitude range Dual-fit CG-5/Vixen and CGE/Losmandy dovetail saddle Improved tripod includes: 2" steel legs with height index marks for quick leveling "Jack of all trays" can hold three 1.25" eyepieces, two 2" eyepieces, your smartphone, or other accessories +20º of additional tracking past the meridian on either side Tripod legs can be collapsed with accessory tray installed for faster setup and transport Improved ergonomics: Two handles for easy pickup and transport All-new ergonomically designed dovetail clamping knobs Innovative and improved polar alignment adjustment system All-new ergonomic latitude adjuster for smooth and easy adjustment under full loads Optional add-on polar axis finderscope - coming soon Electronics: All-new NexStar+ hand control with USB port Two AUX accessory ports to support wireless/WiFi alignment and operation with StarSense AutoAlign and SkyPortal WiFi Module accessories (sold separately) USB 2.0 port, used to connect directly to PC with included software Autoguider port PPEC ready Threaded 12VDC power input barrel connector Internal Real Time Clock (keeps time and site information saved)

Specifications for Celestron CGX Rowe-Ackermann Schmidt Astrograph Telescope:

Objective Aperture: 279 mm
Focal Length: 620 mm

Package Contents:

  • Celestron CGX Rowe-Ackermann Schmidt Astrograph Telescope

Celestron Cgx Schmidt-Cassegrain Telescopefree Gift Available Save Up To 46% Brand Celestron.

Product Description

Product Info for Celestron CGX Schmidt-Cassegrain Telescope

General Features 8" Schmidt-Cassegrain Optical Tube Assembly Aluminum Optical Tube Celestron's premium StarBright XLT coatings 2032 mm focal length (f/10) 25 mm eyepiece included (81x) Visual back allows for use with 1.25" accessories 6x30 finderscope to help accurately find objects Star diagonal provides more comfortable viewing position when observing objects that are high in the sky Includes dovetail rail compatible with CGE mount Computerized Mount Features All-new design. Sturdier and more rigid with quicker dampening time Increased load capacity to 55 lbs. Improved motors provide more torque, better slewing and tracking under heavy loads Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh Internal cabling for worry-free remote operation. Power input and accessory ports remain stationary while the mount slews to avoid snags Internal hard stops for both axes prevents cable tension and tripod strike Internal optical sensors on both axes for simple and safe remote operation Home sensors allow the mount to always start in the index position regardless of orientation before a power reset Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe Brand new control software developed in conjunction with PlaneWave Instruments for professional level control operation and imaging Software includes multi-point mount modeling for extremely precise pointing accuracy and many more additional features for remote astroimaging Wider tripod stance for improved stability Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3º-65º latitude range Dual-fit CG-5/Vixen and CGE/Losmandy dovetail saddle Improved tripod includes: 2" steel legs with height index marks for quick leveling "Jack of all trays" can hold three 1.25" eyepieces, two 2" eyepieces, your smartphone, or other accessories +20º of additional tracking past the meridian on either side Tripod legs can be collapsed with accessory tray installed for faster setup and transport Improved ergonomics: Two handles for easy pickup and transport All-new ergonomically designed dovetail clamping knobs Innovative and improved polar alignment adjustment system All-new ergonomic latitude adjuster for smooth and easy adjustment under full loads Optional add-on polar axis finderscope - coming soon Electronics: All-new NexStar+ hand control with USB port Two AUX accessory ports to support wireless/WiFi alignment and operation with StarSense AutoAlign and SkyPortal WiFi Module accessories (sold separately) USB 2.0 port, used to connect directly to PC with included software Autoguider port PPEC ready Threaded 12VDC power input barrel connector Internal Real Time Clock (keeps time and site information saved)

Package Contents:

  • Celestron CGX Schmidt-Cassegrain Telescope

Celestron Edgehd 1400 14in Optical Tube Assembly 91060-Xlt, Ota Telescopefree Gift Available Save 41% Brand Celestron.

Product Description

Product Info for Celestron EdgeHD 1400 14in Optical Tube Assembly 91060-XLT, OTA Telescope

The Celestron EdgeHD 1400 14" Optical Tube Assembly 91060-XLT is available for use with your favorite mount. This 14 inch Optical Tube Assembly (OTA) is made to the same exacting standards as those used on all high quality Celestron Telescopes. All optical surfaces are coated with Celestron 's high efficiency StarBright multi-layered coating group. The OTA is equipped with the same dovetail mounting bar used on the CGE and Advanced Series for easy attachment to a variety of popular mounts. Every tube assembly is made, assembled and quality control tested at the Celestron manufacturing facility in Torrance, California.

These Edge HD 14-inch Optical Tube Assemblies feature an optical system that takes all of the compact power popularized by the Schmidt Cassegrain Telescope (SCT) and combines it with an improved High Definition Optical System for wide field, astrograph quality images. As a visual instrument, EdgeHD optics deliver pinpoint images even with your widest field eyepiece. You can search for all of the Messier Catalog objects, and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. For astroimaging, the EdgeHD optics produce aberration-free images across your favorite CCD or DSLR camera. All EdgeHD optics on the telescope are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial ccd detectors, allowing all stars to be in tight focus to the very edge of the chip. The EdgeHD 14" optics produces a focal plane three-times flatter than the standard equivalent SCT telescope with diffraction limited stars to the very edge of the SBIG STL6303 field of view!

In addition to Celestron 's new optimized optical design, the EdgeHD 14in OTA has been redesigned to make sure you get the most from your optics each and every night. Among them include:

  • Mirror Support - Flexible tension clutches hold the mirror in place and reduce image shift when rotating the tube around the mount. The flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or chip).
  • Tube Vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 60 micron micro-mesh filter guaranteed to let warm air out without letting dust in.
  • Fastar Versatility -The EdgeHD are the most versatile imaging scopes available today. At its native f10 you can achieve the image scale necessary to capture the smallest of deep sky objects. With the optional reducer lens (coming soon) you can increase your field of view without sacrificing optical performance. A barlow gives you the added power for high resolution planetary, lunar and solar imaging. And of course all EdgeHD optical tubes are Fastar compatible for ultra fast f/2 wide field imaging. Each tube has been fitted with a removable secondary mirror and are opto-mechanically aligned on a laser bench to ensure they are axially symmetric in any configuration.
  • Easy Collimation - With precision machined mechanics and a spherical secondary mirror, EdgeHD optics can be collimated accurately and easily to guarantee that they perform to their potential every time you use them.

Specifications for Celestron EdgeHD 1400 14" Optical Tube Assembly 91060XLT:

Optical Design: Aplanatic Schmidt
Aperture: 355.6 mm (14 in)
Focal Length: 3910 mm (153.94 in)
Focal Ratio: 11
Finderscope: 9x50
Optical Tube: Aluminum
Eyepiece 1: 23 mm (0.91 in)
Magnification 1: 170 x
Star Diagonal: 2" w/ 1.25" adapter
Optical Coatings: StarBright XLT
Mirror Obstruction: 4.5 in (114.3 mm)
Secondary Mirror Obstruction by Area: 10.3 %
Secondary Mirror Obstruction by Diameter: 32.1 %
Optical Tube Length: 31 in (787.4 mm)
Optical Tube Weight: 46 lb (20.87 kg)
Dovetail Compatibility: CGE Mount

Features of Celestron EdgeHD 1400 14" Optical Tube Assembly 91060 XLT:

  • 14" EdgeHD Optical Tube Assembly
  • Aluminum Optical Tube
  • Celestron's premium StarBright XLT coatings
  • 3910mm focal length (f/11)
  • 23mm Axiom 2" eyepiece included (170x)
  • 9x50 finderscope to help accurately find objects
  • 2" diagonal provides more comfortable viewing position when observing objects that are high in the sky
  • Mirror Support Knobs hold the mirror in place and reduces image shift during imaging
  • Tube vents with integrated 60 micron mesh filter allowing hot air to be released from behind the primary mirror
  • Fastar Compatible optical tubes are equipped with a removable secondary mirror for fast f/2 ccd imaging
  • Includes dovetail rail compatible with CGE mount

Package Contents:

  • Celestron EdgeHD 1400 14" Optical Tube Assembly 91060-XLT
  • 23 mm eyepiece (170x)
  • 9x50 finderscope
  • dovetail rail