Under $200

Features Waterproof up to 32 ft LED light and strong pulse vibration for metal detection Uncover coins, jewelry and precious metals on land or un...

Features 8x Magnification Waterproof Twist-up Eyecups 394ft field of view at 1000 yards Case, strap, lens covers and cleaning cloth Descriptio...

Description Get to know fascinating sights in our solar system and beyond with the National Geographic 70mm refractor telescope. This telescope ha...

Features Three objective lenses mounted on a rotating turret provide magnifications of 100x, 400x and 1200x. Includes Prepared and blank slides, ...

Description Discover The World Around! Your ExploreOne 6x21 Binoculars are the perfect companion for countless outdoor adventures. With these dura...

AA Battery Holder Powers Truss-Tube Dobsonian Fans   The AA battery holders for the Explore Scientific truss-tube Dobsonian telescopes with fans us...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Description For cigarette socket compatible power supply It can be used with SX, SX2, SXD2, SXP, AXD mounts, DD-3 controller, STAR BOOK Type S con...

Features Special mount atop telescope tube allows users to attach their device to the telescope and easily locate constellations and planets in t...

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

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

Description Extension tube This Extension tube converts 42mm T-thread to 43mm thread. Specs Thread Diameter 42mmT (p=0.75) 43mm (p=1) O...

Description For cigarette socket compatible power supply It can be used with DD-2 controller, dew heater 2 and color CCD camera C0014-3M. Spec ...

Description Finder Bracket to facilitate Optical axis adjustment Long bracket for Vixen 7x50 Finder Scope, item #8616. Use with finder bracket sho...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features High-quality NPL eyepiece with 40° field of vision Good contrast and reduced color aberrations Eye relief: 36 mm Connection: 31.7 mm, 1 ...

FREE Explore One 30mm Compact Binoculars, when purchasing an Explore Science STEM product. To activate this promotion, add both items to your cart ...

Description Get to know fascinating sights in our solar system and beyond with the National Geographic 70mm refractor telescope. This telescope's...

FREE Explore One 30mm Compact Binoculars, when purchasing an Explore Science STEM product. To activate this promotion, add both items to your cart ...

For *participants of the 2022 Mount Wilson Observatory Star Party and The Huntington Library, there is an Estate Group Tour option for a 90-minut...

Features Subject Tracking Built-in Auto Tracking Camera No App Required 360° Spin Rotation Water Resistant Tripod Adaptable Rechargeable Battery ...

This free document prepared by Dr. Daniel Barth outlines an eclipse observation activity focusing on safety and proper methods. It encourages using...

Features Take high-definition videos and photos of birds feeding and flying with this combination bird feeder and camera Wide 110° viewing angle ...

Description Attaching a DSLR camera or other instruments to the AP mount The dovetail slide bar PG is used to attach a DSLR camera or other instr...

Description 5600mAh lithium battery, only compatible with DWARF II telescope. One full charge can provide 3 to 4 hours of working for DWARF II. Pl...

Description The UHC filter can reduce the negative impact of artificial lights and airglow when shooting deep sky objects. Just install the filter...

Description A plate for balancing optical tube This is a plate to balance an optical tube. Replace it with an attachment plate and use it. Length...

Essential for Time-Lapse Photography Specs Connecting to the POLARIE U 2.5mm stereo mini plug Connecting to the camera 10-pin remote term...

Essential for Time-Lapse Photography Specs Connecting to the POLARIE U 2.5mm stereo mini plug Connecting to the camera 2.5mm stereo mini ...

Description Possible to change the diameter SUsing this eyepiece adapter, you can convert from 42mm male T-thread to 31.7mm (1.25 inch). Thereby,...

Features The magnification of 6x is the best compromise between the brightness and the sight, particularly when used indoor generally The incorpo...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Rock tumbler mimics natural weathering process to turn rough-edged rocks into smooth shiny stones with intriguing colors and patterns. J...

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

Description Water resistant rubber heater. Reduce night dew on objective lens or main mirror. Specs Length 665mm Weight 320g Length of...

Essential for Time-Lapse Photography Specs Connecting to the POLARIE U 2.5mm stereo mini plug Connecting to the camera Multi/micro USB te...