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Updated star maps include all sky events occurring in 2017 and beyond. Praise for the previous edition: "A concise introduction to the night sky ...

Note that this version of the counterweight set will not work with the CPC-800 telescopeTo achieve true dynamic balance with a fork-mounted SCT, bo...

PLAY & LEARN: Professor Noggin’s series of educational card games encourages kids to learn interesting facts about their favorite subjects. F...

Optolong UHC nebula clip filter for Canon EOS full frame cameras! The UHC (Ultra High Contrast) broadband filter is designed to improve the visibi...

Optolong L-Pro clip filter for Canon APS-C cameras! The L-Pro is designed to improve the visibility of various deepsky objects. By selectively redu...

Use this adapter to connect a camera with female T-threads to a device with male C-threads. Ideal for using T-thread autoguiders such as the Orion ...

Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Availabl...

Our M42-to-M48 Step Ring with Lip adds a stop to keep the ring from threading too far in.  Ideal for using a ZWO OAG with an SCT T-adapter, for exa...

The PhotoSol Orbit HEPA Blower is the only blower approved by NASA for use on the International Space Station’s instrument sensors. Use the Orbit ...

All-Weather Protection: Shields your telescope from light rain or snow, dust, and harmful UV rays, providing year-round protection in outdoor en...

Pre-Order Now! Press release from Tele Vue: ConceptThe Nagler Type 7 series was developed as a natural extension of our highly regarded, 85°,limite...

The 7-element, Nagler Type 6 design is based on the original patented Nagler design. This new 7-element design update for the short focal length Na...

SkyMaster Pro binoculars are the ideal choice for amateur astronomers or anyone that observes at great distances. Compared to lower-priced large a...

ED objective lenses provide superior images virtually free of chromatic aberration with accurate color reproduction, increased resolution and con...

Extra-Low Dispersion (ED) objective lenses provide high resolution, high contrast images virtually free of optical defects like chromatic aberrati...

The Starizona SCT Corrector requires the proper camera adapter to achieve the correct lens-to-CCD distance. This ensures the best optical performan...

• Waterproof • Tear-Resistant • Stargazer Map and Guide The name Solar System is derived from "Sol" or sun, and describes our planetary system orbi...

Works on AZ-EQ6 mounts 11lbs

The largest aperture scope in the Ultima line, the 100mm Ultima offers more than 50% brighter images than the 80mm, allowing for better performanc...

What sets Super Mount CYG  tripods apart? The answer is users have the flexibility to spread each leg wider than other carbon tripods, up to 32° fo...

The iconic saguaro cactus is one of thousands of species of plants growing in the diverse ecosystems found throughout the southwestern deserts. Thi...

This richly illustrated folding guide from Waterford Press highlights over 140 familiar and unique species and includes a map featuring prominent b...

A novel approach to stargazing, this stunning space book features step-by-step guides to identifying the key constellations across the northern hem...

The Barnard Objects have fascinated professional and amateur astronomers for over one hundred years. Many of those objects first imaged by E.E. Bar...

Eyepieces at or near the 10mm range are often considered a mandatory focal length in your collection, as this focal length range is departure p...

Askar MCP90 (Multi-Connection Plate 90) is a professional design especially for FRA400/5.6 astrograph. But it also works well with other various ha...

3 element - 0.75x-Flat Field for sharper stars all to way to the edge.  Specifically made for the 106mm APO. Screws on to the M63x1-Thread. 0.75x f...

This version of the C14 MicroFocuser will fit both the Edge HD and new-style non-HD 14" SCTs from Celestron. The "new-style" non-HD C14s have the s...

For over 50 years, Fisher Space Pen has been proud to have our technology approved and used on every crewed flight into space since 1967 with NASA....

Conceived in a dream in July 1948, Paul Fisher was soon machining a new pen design shaped from solid aluminum. It became the first Fisher ball poin...

To achieve true dynamic balance with a fork-mounted SCT, both top and bottom weights are required. See stock number CWCPC8-CS for the complete top ...

A new generation - the world-first - galaxy and nebula booster filter intended for shooting not only nebulae, but also galaxies by the use of the t...

M42 Sensor tilt adapter Product: M42 sensor tilt adapter Thickness: 5mm Suitable for APS-C cameras (ASI2600) You can connect it to M68 OAG and 2”E...

Easy to understand facts abut Insects, an Arachnid and a Crustacean Full-Color photographs of each Bug Thick and Durable Flash Cards that Child...

Month-by-month information on meteor showers and how to make the most of watching them Advice on starting and building a meteorite collection plus...