Products

Best-selling star chart, ideal for beginning astronomers!These charts are the perfect way to learn the stars and constellations. Simply rotate the ...

Best-selling star chart, ideal for beginning astronomers!These charts are the perfect way to learn the stars and constellations. Simply rotate the ...

Best-selling star chart, ideal for beginning astronomers!These charts are the perfect way to learn the stars and constellations. Simply rotate the ...

An authoritative survey of the most common and noteworthy plants found throughout Arizona, this guide covers more than 1,000 species. Color photos ...

Find out about all 118 elements, the building blocks of matter that make up our entire universe, in this pocket-sized encyclopedia.Discover all the...

Profiling nearly 200 types of rocks and minerals from volcanic rocks and granite to sparkling diamonds and explosive sulfur, Pocket Genius: Rocks ...

This useful accessory speeds accurate polar alignment by providing a means of visually aligning your German equatorial mount with Polaris and true ...

96000mAh/307.2Wh  Portable Power Station GP50 Product Features: Dual 12V cigar lighter socket output—Support Cpap/Car fridge/CameraUSB-C PD 60W—S...

Digital Display Fast Charging Accurate Battery Level Display Ultra-high Capacity 20000mAh SPECIFICATIONS: Capacity: 3.7V/20000mAh/74Wh Dimensions: ...

A must-have 2-in-1 accessory for amateur astronomers: a red flashlight PLUS a USB power bank for charging mobile devices in the field. Red LED fla...

    Portable power pack for your computerized Celestron telescope using Lithium-Iron Phosphate (LiFePO4) chemistry Powers your telescope for up ...

Extra-large capacity portable power pack featuring Celestron’s LiFePO4 battery technology Powers your telescope for up to 17 hours USB device c...

A wide assortment of specimen slides covering insect parts, plant parts, animal parts, etc.Features Prepared Slides For Hours and Hours of Enjoymen...

A wide assortment of specimen slides covering insect parts, plant parts, animal parts, etc.Features Prepared Slides For Hours and Hours of Enjoymen...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 150PDS/P/Quattro The precisely machin...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 200PDS/Quattro The precisely machined...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 250PDS/Quattro The precisely machined...

It's the 2020 edition of Professor Noggin with all new photos! Kids will enjoy transferring their energy to learning about Energy, Motion, and Gas...

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

With the advantage of low readout noise and high-speed readout, CMOS technology has revolutionized astronomical imaging.  A monochrome, back-illum...

The QHY5L-II Series uncooled cameras fit in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyep...

When the pixels of a guide camera becomes small and QE becomes high, you may not need a big guide scope, smaller pixels can detect the guide error...

Solid metal adapter required to connect the QHY PoleMaster Electronic Polar Finder (sold separately) to the following mounts: Celestron CGEM/CG...

Easy to Install! You don't need to rotate the telescope to some uncomfortable position to keep the optical polar axis of the equatorial mount unob...