Products

Author: O. Richard NortonPaperback: 444 pagesThis popular nontechnical introduction to meteorites, asteroids, comets, and impact craters is now eve...

Explore and "color in" the amazing world of minerals and crystals... readers and rockhounds of all ages and skill levels will love this book! Learn...

Allows Celestron computerized telescopes (CPC, CGE, NexStar, Advanced Series) to be connected to a RS-232 serial port for computer control. A USB-t...

Counterweights Not Required Only 3.4kg weight ±2.5arcsec PE Capacity 13.5kg (max 18kg) Strain Wave Gear (Harmonic Drive) ...

SBIG AFW Filter Wheels are fast and quiet, and are designed to be compatible with our full line of SBIG cameras.  Two size formats are available: L...

The Aluma AC461 is a research grade, high performance 102 megapixel scientific imaging camera. The IMX461 sensor features extremely high quantum ef...

The Aluma® Series cameras offer capabilities and features not available in any other scientific-grade imaging camera.  This lightweight (2.2 lbs) a...

OM3 Fiber Optic Cable – various lengths.

Replacement Desiccant Plugs for SBIG camera models.  User-replaceable desiccant helps avoid unnecessary returns for service. Note:  Desiccant plugs...

The SBIG StarChaser SC-4 is your all-in-one solution for off-axis guiding. It is the world’s best off-axis guiding camera, measuring only 0.875″ (2...

Use this adapter to attach accessories with standard SCT female threads (such as a focal reducer) to a 2" focuser or visual back. This adapter has ...

35.3mm T-to-T spacer (M42 female to M42 male).  This adapter takes up 35.3mm of the Starizona SCT Corrector's 90.3mm back focus. Leaving 55mm of ba...

This adapter gives your Starizona SCT Corrector v1 SCT Threads.   Thread Type: SCT Length: 9mm length

Updated, more robust design! This bracket will fit the existing finderscope mounting holes on SCT telescopes.  It fits common finderscope style fee...

Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

CNC machined secondary spider made of aluminum (EN AW-6061), black matt anodized, suitable for 8" TS-Optics GSO Photon This secondary spider is ma...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for 10" TS-Optics GSO Photon This secondary spider is m...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 150 P/PDS/Quattro This secondary spider ...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 200 PDS/Quattro This secondary spider i...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 250 PDS/Quattro This secondary spider i...

CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for TS-Optics GSO Photon 6" This secondary spider is m...

AstroLevel, the ultimate accessory for your ZWO SeeStar S50 smart telescope. Designed to seamlessly connect to your SeeStar's tripod, AstroLeve...

  Start your Photography Journey with Seestar S30— Capture the Cosmos Anywhere Portable Convenience — Your Pocket Observatory Weighing no more t...

Lightweight: Weighs only 1.65 kg. Intelligent: Smart app control with GOTO and automatic tracking — enjoy stargazing anytime, anywhere. Easy to U...

Seestar TH10 hydraulic tripod head is specially designed for use with Seestar smart telescopes in equatorial mode. It also compatible with most ...

Designed for cleaning CCD, CMOS sensors, or any sensitive surface.  This kit includes:  6x SensorSwab ULTRA Cleaning Swab 1xEclipse Optic Cleaning...

The 0.84x reducer can bring Sharpstar 50EDPH's focal ratio down to F4.6. This is a standard reducer with field flattening capabilities as well. A...

V2 model with new tube ring and foot design.  This compact 50mm f/5.5 APO refractor telescope has triplet air-spaced APO optics, including two piec...

Finally, an affordable meter for measuring sky brightness for astronomers!  The "Sky Quality Meter" measures the brightness of the night sky in mag...