Under $200

Explore Scientific Nebula Filter 1.25" H-Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94.5% H-Beta - Hydrogen is the most abunda...

Explore Scientific Nebula Filter 1.25" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UHC - This is an ultra-high contrast na...

Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% This is a general-purpose light-pollut...

Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% This is a general-purpose light-polluti...

Description This adapter allows you to attach the 3-inch 0.7X Field Flattener Focal Reducer (FFFR507X-00) on optical tubes with a 2-inch focuser. ...

A luxurious take on the traditional camp shirt. The fabric features a smooth-draping weave that’s richly textured for distinctive character, and th...

Give the gift of exploration. Gift cards are delivered by email and contain instructions to redeem them at checkout. Our gift cards have no additio...

Description Designed to fit Explore Scientific’s 50mm reticle finder scopes, this spare LED illuminator offers deep red illumination with variable...

Description This T-Shaped Finder Scope Base is specifically designed to allow you to secure one of Explore Scientific’s high-quality finder scopes...

Description A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magn...

Description A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magn...

Description Explore Scientific cradle assemblies fit their appointed telescope OTA snuggly, yet protect the delicate surface of the tube. The hing...

Description Explore Scientific cradle assemblies fit their appointed telescope OTA snuggly, yet protect the delicate surface of the tube. The hing...

Description This Finder Scope Base is specifically designed to allow you to secure one of Explore Scientific’s high-quality finder scopes to the t...

Description Explore Scientific finderscope rings are all made for 50mm finders. Choose from a classic low profile bracket (about an inch tall), on...

Standard Height 50mm Finder Scope Rings Description Explore Scientific finder-scope rings are all made for 50mm finders. Choose from a classic low...

Description The Explore Scientific 2-inch Dielectric-Coated Diagonal Mirror comes complete with 1.25-inch Adapter and dust covers. Solid construct...

Description Explore Scientific’s dual speed, 2" AR Series Focuser comes with a 1.25" compression ring eyepiece adapter for added versatility. This...

Description A saddle plate is not the most exciting astronomical accessory in the world, but it is one of the most important when it comes to the ...

Description The 8x50 finder scope has a standard crosshair to help you center objects precisely. The straight-through, non-erect image viewer has ...

Jupiter is well named after the King of the Gods in Greek mythology, it is the largest planet in both mass and size, and possesses the ...

Misconceptions about large numbers are some of the most persistent and troublesome bits of misinformation. Not just children, but a lar...

The idea that tides are linked to the Moon is an old one. Galileo was one of the first scientists to develop the idea of tides being...

The French mathematician and astronomer, Edouard Roche, is most famous for his work on celestial mechanics and his discovery of t...