$100 to $200

Features This is a field flattener for refractor-type telescopes with a focal ratio of f/5 to f/7 Causes no change to the telescope focal length ...

Description The Azimuth Adjuster Adapter is designed for use on the Twilight Medium Duty or Twilight Heavy Duty tripods.  This adapter also works ...

Features Observing the stars like a good astronomer is very easy with the refractor 70/700 Callisto telescope Includes telescope, mount, tripod, ...

Buy Any Four In-Stock Premium Waterproof Eyepieces, Get A Free Soft-Sided Eyepiece Case!  To Activate Deal:Step 1 - Add the Soft-Sided Eyepiece C...

Features Optical tube assembly only ready for daytime solar or nighttime stellar use, for visual or astroimaging applications.  80mm aperture wi...

Buy Any Four In-Stock Premium Waterproof Eyepieces, Get A Free Soft-Sided Eyepiece Case!  To Activate Deal:Step 1 - Add the Soft-Sided Eyepiece C...

Buy Any Four In-Stock Premium Waterproof Eyepieces, Get A Free Soft-Sided Eyepiece Case!  To Activate Deal:Step 1 - Add the Soft-Sided Eyepiece C...

Description Keep out stray and unwanted light from your 20" Truss Tube Dobsonian telescope with a lightweight light shroud. Keeping the path dark ...

Features 80mm aperture will reveal impressive lunar details ranging from craters to rilles, planetary features like Saturn’s ring structure or Ju...

Description Explore Scientific™ David H. Levy Comet Hunter Telescope is rich in quality components. Among those is the 2? Comet Hunter Focuser, wh...

Description Finding and holding that perfect crisp focus is almost effortless with Explore Scientific's Crayford Style Focuser. Defined by its pre...

Discontinued Item Features Ample 70mm aperture will reveal stunning lunar details, popular planetary features like Jupiter’s cloud belts or Satur...

Experience and control the PMC-Eight GOTO System and make astrophotographs from anywhere in the world, by live Internet access to the Mark Slade R...

Explore Scientific Nebula Filter 2.0" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UHC - This is an ultra-high contrast nar...

Features 1.5-inch stainless steel legs provide a sturdy foundation for your observing or imaging setup Die cast aluminum spreader tray locks agai...

Buy Any Four In-Stock Premium Waterproof Eyepieces, Get A Free Soft-Sided Eyepiece Case!  To Activate Deal:Step 1 - Add the Soft-Sided Eyepiece C...

Features With AstroSolar™ the Sun appears in neutral white. Baader AstroSolar™ film Filter cell constructed from lightweight 18Ga. aluminum and p...