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The UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects. The UHC (Ultra High Contrast) bro...

This is the top half of the Celestron 11" SCT counterweight set. Use this if you already have a bottom slidebar kit from Celestron or Losmandy. Inc...

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

Authors: Bruce GrubbsPaperback: 368 pages, 3rd Ed.Lace up your boots and sample 120 of the finest trails in Arizona. Hike the Boucher-Hermit Trails...

When closed, the Bullet Space Pen is the perfect size to carry in your wallet, pocket, purse, car glove box, organizer, or toolbox. When opened it'...

Use this visual back to attach a 2" diagonal or other 2" accessories to the back of a Schmidt-Cassegrain telescope using the standard 2"-24tpi thre...

Optolong L1 Dual-Combo Set Two approaches to the deep sky. The Optolong L-Quad Enhance + L-Para Filter Set pa...

The Optolong L-Ultimate 2" filter is a precision 3nm dual-narrowband light-pollution imaging filter designed for high-contrast emi...

Designed with the outdoor enthusiast in mind, waterproof and fully rubber armored Phase coated BaK-4 prisms for increased contrast and resolution ...

Celestron’s award-winning Nature DX 12x50mm binoculars are the perfect companion for your next outdoor adventure. The views through Nature DX riva...

The Askar N160 features a large 160mm aperture and a focal ratio of F3.4.It is a cost‑effective Newtonian reflector designed for deep-sky astrophot...

Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 62° Series eyepieces are excellent flat-field multi-eleme...

Overview At just over 4 inches in diameter and a few inches thick (IMX585), the new miniCAM8 is a compact, high-resolution, high-performance, coole...

Observatory-Class Precision Mount Astro-Physics 1150GTO Precision tracking. Serious payload capacity....

Compatible with Esprit 100EDX • 44mm image circle Designed specifically for the Sky-Watcher Esprit 100EDX, this flattener corrects optical aberrati...

1.0x flattener Compatible with Esprit 70EDX and Evostar 100EDX 44mm image circle Designed for the Sky-Watcher Esprit Esprit 70EDX and the Evostar...

The Antlia 3nm Pro SHO Narrowband Filter Set combines three 2" mounted filters—Sulfur II, H-alpha, and Oxygen III—for high-contras...

  ULTRA WIDE 24° FIELD OF VIEW: The expansive 24° true field of view lets you take in entire constellations at once—perfect for learning the sky ...

Easily use standard 1.25" eyepieces and accessories in a 2" telescope focuser, diagonal, or visual back with this precision-machined aluminum adapt...

Meticulous Mid-Range Machinery. Powerful. Compact. Precise. Dual-axis belt drives deliver whisper-quiet, extremely accurate movement for both axes ...

Introducing the ASI676MC/MM , the all-sky camera featuring a unique square 1/1.6-inch image sensor and a super high resolution of 12MP! It is perfe...

Designed with the discerning astrophotographer in mind, Sky-Watcher’s top-of-the-line Esprit EDX refractors deliver the kind of imaging performanc...

Designed with the discerning astrophotographer in mind, Sky-Watcher’s top-of-the-line Esprit EDX refractors deliver the kind of imaging performanc...

The Askar 0.74× reducer, specially optimized for the Askar 111F, is designed to unlock a broader and more efficient deep-sky astrophotography exper...