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Astro Hutech More Blue Accessory Plate - 180mm  Accessory plate – 180mm long Cool grey metallic finish 167g 4 x M6 and 2 x M5 bolts included Tech...

Astronomy Plus Mallincam 2" 0.75x Reducer (OA-08) - USED The new MallinCam 2" format focal reducer has been further improved and made for many new ...

Walter Products  DN Series Digital Eyepiece Cameras     Captures high quality images Great for observing live and still images Offers USB2.0 Plu...

Astro Hutech More Blue Fine-Focus Retrofit Kit for Takahashi This is the retrofit kit for Takahashi telescopes, which gives users finer focusing. ...

Astro Hutech More Blue Thumbscrew M6 4 pcs set for 90mm, 95mm & 114/115mm mounting rings Stainless steel 84g for 4 pcs Techncial Specificatio...

Antares 1.25" 5-Position Manual Filter Wheel This filter wheel will accept (5) 1.25" filters and has fittings for both 1.25" visual and M42 camer...

Losmandy Power Cord Power Cord for use on 492 Drive System and Gemini 2 Drive System. Cigarette Lighter Plug with Right Angle 2.1mm Coax Plug, 5 Am...

Player One M68 Adapter for FHD-OAG MAX Design for FHD-OAG MAX, to connect M68x1 threads on telescope or flattener.  

Starlight Innovation 2" Foam Seat Upgrade Extra added comfort for your viewing pleasure Heavy Naugahide Custom Beaded edging 2‑inch Foam Seat avail...

QHYCCD 4-pin to 6-pin Cable for QHYCFW3 This dedicated cable provides the proper connection between the QHYCFW3 filter wheel and compatible QHY cam...

Optolong L1 L-Quad & L-Para Enhence Filter Set L1 Dual -Combo Set includes：one L-Quad Enhance Filter and one L-Para L-Quad Enhance Filter：Quad ...

Parallax Tube Rings for Tele Vue TV-76  Pair of tube rings for Tele Vue TV76 refractor. Technical Specifications Rings fit Tele Vue TV76 telescope....

Les Oiseaux du Québec (Fr) *This guide is written in french* Suzanne Brûlotte now uses the most recent classification established by the American ...

Sightron IR640 Pro II IR Pass Filter  Japanese-made IR-pass filter. Fully blocking below 640nm.  Steep cut-off line & high transmission rate.  ...

Baader 2" Clicklock Clamp for Takahashi Sky90 (external M64 Thread) The wait is over. Baader Planetarium has developed the big brother to their acc...

Celestron NexImage 20 Solar System Color Imager   CAPTURE ULTRA-HIGH-RES IMAGES & VIDEO: Intuitive yet powerful, this camera captures detaile...

ZWO ASI662MM Mono Camera The ASI662MC/MM is equipped with the Sony-IMX662 rolling shutter CMOS. Boasting a 1/2.8” frame size combined with a 2.9μm...

Astronomy Plus M48 T Adapter for LARGE SCT EDGE HD (9.25/11/14)   This T-Adapter allows you to connect your Celestron C925HD, C11HD, or C14HD teles...

Astronomy Plus T Adapter for C8HD   This T-Adapter is specifically designed for the Celestron C8HD Schmidt-Cassegrain telescope, providing a secure...

Astronomy Plus Telescope Laser Collimator for 1.25 Inch or 2 Inch   Achieve precise and effortless collimation of your Newtonian or Dobsonian teles...

Losmandy Counterweight Shaft COUNTERWEIGHT SHAFT FOR G11, GM8 AND G9 MOUNTS THREAD SIZE 1" 16 FOR AXIS AND 3/8" 16 FOR COUNTERWEIGHT SAFETY SCREW L...

Losmandy G-11 Saddle Plate For D and V Series Dovetail Plates G11SPDV Saddle Plate for GM 8, G-11 and Takahashi mounts. Accepts "D" and "V" series ...

ZWO M54M - M54F 10mm Adapter This adapter allows conversion from male M54 to female M54 with 10mm spacing. Technical Specifications M54 Male Threa...

iOptron SkyHunter Extention Pier Aluminum extension pier for SkyHunter mount. It has 3/8-16 threaded mounting holes on both top and bottom flanges....

Daystar ± 5° Tilt Adapter for Quarks This accessory is designed for use with our Quarks, it allows mounting a T thread camera directly to the Quark...

Daystar Universal Sun Finder The Universal Solar Finder is a quick and easy way to help with pointing your solar telescope at the Sun. Includes bot...

Daystar Combo Quark 2.8X Telecentric Barlow This  brand new QUARK optimized accessories is designed to fit our classic Combo Quark Hydrogen Alpha F...

Daystar Combo Quark 4.3X Telecentric Barlow This  brand new QUARK optimized accessories is designed to fit our classic Combo Quark Hydrogen Alpha F...

Antares Filter Neutral Density 13% - USED This filter is in excellent condition. Neutral density filters can reduce brightness across the visu...

Tele Vue Nagler 5.5mm Type 7 Concept The Nagler Type 7 series was developed as a natural extension of our highly regarded, 85°, limited edition Apo...

Tele Vue Nagler 9mm Type 7  Concept The Nagler Type 7 series was developed as a natural extension of our highly regarded, 85°, limited edition Apo...

Baader UBVRI Bessel Filters V-Filter – Photometric Baader Bessel-UBVRI Bandpass Filter Set, suitable from f/15 to f/1.8 Classic photometric filter...