Under $200

Features With this reflectors ample 76mm aperture, you can visit the deep sky’s brightest galaxies, nebulae and star clusters and enjoy detailed ...

Features With the 60mm aperture, you can observe hundreds of craters and mountain ridges on the lunar surface, planetary features like Jupiter’s ...

Features With the 50mm aperture, you can explore the Moon’s cratered surface and see intriguing planet features like Jupiter’s Galilean moons or ...

Features 40mm aperture is perfect for nighttime moon gazing and daytime nature watching. Two interchangeable eyepieces give you magnifications of...

If you need a Sun Catcher Solar Filter for 10-inch and 12-inch Dobsonian telescopes, purchase SC14-00. Cassiopeia Observatory Review - Click Here...

Description The EXOS2 Polar Finder Scope has Polar Assist markings to help you efficiently accomplish a proper polar alignment. This polar scope w...

Features Large 90mm aperture packs enough light-gathering power for revealing looks at galaxies, nebulae and clusters as well as lunar and planet...

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...

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...

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...

The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as an excellent filter to reduce glare and irradi...

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

Description Keep out stray and unwanted light from your 10" and 12" Truss Tube Dobsonian telescope with a lightweight light shroud. Keeping the pa...

One size fits all 100% Cotton velcro cap. 100% cotton One size fits all CA Residents: Prop 65 WARNING(S)

Description Your telescope is much more than an observation aid. It is your personal pathway to the stars, and protecting it while it is in storag...

Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. Transmission 96.7% Oxygen III - This is the highest cont...

Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. Transmission 96.7% Oxygen III - This is the highest cont...

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" 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...

Features Rotatable 360° diagonal to find the perfect viewing angle! 360mm Focal Length Full-length AZ Panhandle Mount Capture what you see with t...

Features Variable polarizing filter Individually adjustable image brightness Made from highly parallel optical glass Black anodized aluminum hous...

We all know that the gravitational field of any moon causes tides on its home planet. The height of the tide for a moon also depends upon the natur...

In August of 2006 the International Astronomical Union famously downgraded Pluto, which was considered the 9th planet in our solar system, to be re...