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Kite Stabi One held in palm showing compact size with forest backdrop

A Gift That Fits in a Pocket

The Kite Stabi One: steady, stabilized 10x views from a monocular smaller than a phone.

Athlon Optics

Superior quality Binoculars, Spotting Scopes and Thermals

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Premium Binoculars, Spotting Scopes, and more

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$Explore Scientific ED127 Essential Series refractor in its cradle rings with carry handle, side view$
Explore Scientific
Explore Scientific ED127 127mm f/7.5 Triplet APO Refractor Telescope
In stock

Regular price $1,499.99
Explore Scientific
Explore Scientific 10" f/5 Hybrid Truss Tube Dobsonian Telescope

(1)

In stock

Regular price $899.99
Explore Scientific
Explore FirstLight 100mm f/14 Mak-Cassegrain Telescope with Twilight Nano Mount
In stock

Regular price $299.99
$Explore FirstLight 80mm carbon-fiber refractor on the iEXOS-100 mount, with the yellow solar filter on the objective end$
$The FirstLight 80mm carbon-fiber refractor on the iEXOS-100 mount without the solar filter, showing the yellow-ringed dew shield$
$The FirstLight 80mm carbon-fiber refractor and iEXOS-100 mount on the travel tripod with its accessory tray$
Explore Scientific
Explore FirstLight 80mm f/8 Carbon Fiber Refractor Telescope Go-To Tracker Combo with Solar Filter
In stock

Regular price $409.99
$Explore Scientific AR102 102mm f/6.5 doublet refractor telescope — white aluminum OTA with removable dew shield, cradle rings, Vixen-style dovetail, 2-inch dual-speed Crayford focuser, and 2-inch dielectric diagonal$

$Astronomer observing through the Explore Scientific AR102 doublet refractor at night under a starry sky with mountains in the background$
$Close-up of the AR102 10:1 dual-speed focuser knobs highlighting precision focus control on the Explore Scientific AR102 Air-Spaced Doublet Refractor$
Explore Scientific
Explore Scientific AR102 102mm f/6.5 Doublet Refractor Telescope
In stock

Regular price $449.99
National Geographic
National Geographic NT114PH 114mm Carbon Fiber Reflector Telescope
In stock

Regular price $149.99
Explore Scientific
Explore FirstLight 127mm f/15 Mak-Cassegrain Telescope (OTA only)
In stock

Regular price $499.99
$Explore Scientific AR127 127mm f/6.5 Doublet Refractor Telescope — full side profile showing white optical tube, cradle rings with carry handle, 8x50 finderscope, 2-inch dielectric diagonal, and Vixen-style dovetail plate$
$Observer using the Explore Scientific AR127 refractor under a starry night sky with the Milky Way visible overhead (eyepiece and mount not included)$
Explore Scientific
Explore Scientific AR127 127mm f/6.5 Doublet Refractor Telescope

(1)

In stock

Regular price $749.99
$Explore Scientific ED102 Essential Series 102mm f/7 triplet APO refractor telescope — white aluminum OTA with cradle rings, carry handle, Vixen-style dovetail bar, and 2-inch dual-speed rack-and-pinion focuser$
$Side profile of the Explore Scientific ED102 Essential Series refractor showing full tube length with retractable dew shield and 2-inch focuser with extension tube$
Explore Scientific
Explore Scientific ED102 102mm f/7 Triplet APO Refractor Telescope
In stock

Regular price $999.99
Explore Scientific
Explore Scientific 10" f/4.7 Dobsonian Telescope
In stock

Regular price $899.99
$National Geographic 70mm Silver Carbon Fiber refractor telescope with smartphone adapter showing Moon photo, on panhandle alt-azimuth mount with tripod$
$70mm Silver refractor telescope full setup showing silver carbon fiber tube, panhandle mount, adjustable tripod with accessory tray holding eyepieces and smartphone adapter$
$Close-up of smartphone adapter attached to the 70mm Silver refractor eyepiece showing a detailed Moon image on the phone screen, with red dot viewfinder visible$
$70mm Silver refractor telescope side profile showing the silver carbon fiber tube, dew shield, panhandle mount head, and National Geographic branding$
$70mm Silver refractor telescope full-length view on adjustable tripod with accessory tray, eyepieces stored in tray, silver carbon fiber tube aimed upward$
$70mm Silver refractor telescope full setup from alternate angle showing tripod spread, accessory tray with eyepieces, smartphone adapter and red dot viewfinder on tube$
$Included accessories for the 70mm Silver refractor: star diagonal, Plossl 9.7mm and 26mm eyepieces, 2x Barlow lens, smartphone adapter, and red dot viewfinder$
$Smartphone suction-cup adapter for the 70mm Silver refractor telescope, top view showing the eyepiece clamp ring and suction pad surface$
National Geographic
National Geographic 70mm Silver Carbon Fiber Refractor Telescope
In stock

Regular price $139.99
Explore Scientific
Explore FirstLight 114mm f/4.4 Newtonian Telescope with EQ3 Mount
In stock

Regular price $299.99
$Explore Scientific ED102 FCD100 carbon fiber triplet refractor telescope with cradle rings, carrying handle, and 2.5-inch hexagonal focuser on white background$
$Explore Scientific ED102 FCD100 carbon fiber refractor with HOYA FCD100 Premium Quality glass certification badge showing Abbe number 95.10$

$Polychromatic point spread function diagram showing on-axis diffraction-limited optical performance of the Explore Scientific FCD100 triplet design$
$HOYA FCD100 optical glass specifications table showing refractive index 1.43700, Abbe number 95.10, and ultra-low dispersion values$
Explore Scientific
Explore Scientific ED102 102mm f/7 FCD100 Triplet Telescope in Carbon Fiber
In stock

Regular price $1,899.99
Explore Scientific
Explore Scientific 6" f/5 Tabletop Dobsonian Telescope
In stock

Regular price $499.99
National Geographic
National Geographic 76mm Compact Reflector Telescope
In stock

Regular price $99.99
$National Geographic CF700SM 70mm refractor telescope with carbon fiber tube on alt-azimuth mount, showing dew shield, red dot viewfinder, and diagonal with eyepiece$
National Geographic
National Geographic CF700SM 70mm Refractor Telescope
In stock

Regular price $119.99
$National Geographic StarApp70 refractor telescope with smartphone mounted showing star chart app, on panhandle alt-azimuth mount with tripod$
National Geographic
National Geographic StarApp70 - 70mm Refractor Telescope w/ Astronomy APP
In stock

Regular price $149.99
$Explore Scientific ED152 carbon fiber triplet refractor telescope full-length side view showing dew shield, cradle rings with carrying handle, and 2.5-inch HEX focuser$

$Elephant Trunk Nebula (IC 1396) in narrowband captured with the Explore Scientific ED152 CF Triplet Refractor, photo by Drew Evans$
Staff pick
Explore Scientific
Explore Scientific ED152 152mm f/8 Triplet Carbon Fiber Refractor Telescope
In stock

Regular price $3,999.99
$Explore FirstLight 80mm refractor on the iEXOS-100 mount: white tube, red-dot finder, diagonal and eyepiece, counterweights on the shaft$
$The FirstLight 80mm refractor and iEXOS-100 mount on the travel tripod with its accessory tray$
Explore Scientific
Explore FirstLight 80mm f/8 Refractor Telescope Go-To Tracker Combo
In stock

Regular price $389.99
$Explore Scientific ED102 FCD100 aluminum triplet refractor telescope in classic white finish with cradle rings, carrying handle, Vixen-style dovetail bar, and 2.5-inch hexagonal focuser$

$Polychromatic point spread function diagram showing on-axis diffraction-limited optical performance of the Explore Scientific FCD100 triplet design$
$HOYA FCD100 optical glass specifications table showing refractive index 1.43700, Abbe number 95.10, and ultra-low dispersion values$
$Explore Scientific ED102 FCD100 aluminum refractor with HOYA FCD100 Premium Quality glass certification badge showing Abbe number 95.10$
Explore Scientific
Explore Scientific ED102 102mm f/7 FCD100 Triplet Refractor Telescope
In stock

Regular price $1,699.99
$Explore Scientific ED80 FCD100 80mm f/6 triplet APO refractor telescope — white aluminum OTA with integrated Vixen-style dovetail, 2N1 finder base, and 2.5-inch hexagonal dual-speed focuser$

$Explore Scientific ED80 FCD100 triplet refractor with HOYA FCD100 Premium Quality badge showing Abbe Vd 95.10 and Abbe Ve 94.66 glass specifications$
$HOYA FCD100 optical glass specifications table — refractive index 1.43700, Abbe number Vd 95.10, dispersion 0.004595, confirming premium extra-low dispersion performance$
$Polychromatic point spread function diagram for the FCD100 series optics showing tight on-axis diffraction pattern with near-ideal star profile$
Explore Scientific
Explore Scientific ED80 80mm f/6 FCD100 Triplet Refractor Telescope
In stock

Regular price $1,119.99
$Explore Scientific ED80 Essential Series 80mm f/6 triplet APO refractor telescope — white aluminum OTA with dew shield, integrated Vixen-style dovetail, 2-inch dual-speed focuser, and included 2-inch diagonal$

$Front view of the Explore Scientific ED80 Essential Series compact triplet refractor with dew shield, focuser, diagonal, and integrated Vixen dovetail$
Explore Scientific
Explore Scientific ED80 80mm f/6 Triplet Refractor Telescope

(1)

In stock

Regular price $699.99

20% off
Athlon Optics
Athlon Optics Cronus G2 UHD 15x56 Binoculars
In stock

Sale price $749.99 Regular price $937.49
20% off
Athlon Optics
Athlon Optics Cronus G2 UHD 10×42 Binoculars
In stock

Sale price $549.99 Regular price $687.49
8% off
Kite Optics
Kite Optics APC Stabilized 14x50 ED AA Binoculars
In stock

Sale price $1,799.00 Regular price $1,950.00
8% off
Kite Optics
Kite Optics APC Stabilized 14x50 ED Li-Ion Binoculars

(1)

In stock

Sale price $1,849.00 Regular price $1,999.00
20% off
Athlon Optics
Athlon Optics Midas G2 Pro UHD 12x50 Binoculars
In stock

Sale price $499.99 Regular price $624.99
Alpen Optics
Alpen Apex Steady 14x42 HD Binoculars with Image Stabilization

(1)

In stock

Regular price $999.99
8% off
Kite Optics
Kite Optics APC Stabilized 18x50 ED AA Binoculars
In stock

Sale price $1,849.00 Regular price $1,999.00
7% off
Kite Optics
Kite Optics APC Stabilized 18x50 ED Li-Ion Binoculars

(1)

In stock

Sale price $1,899.00 Regular price $2,050.00
Explore Scientific
Explore Scientific G400 Series 10x50 Binoculars
In stock

Regular price $349.99
Explore Scientific
Explore Scientific G400 Series 8x42 Binoculars
In stock

Regular price $199.99
Explore Scientific
Explore Scientific G400 Series 10x42 Binoculars
In stock

Regular price $199.99
National Geographic
National Geographic Excursion Series 10x42 Binoculars
In stock

Regular price $159.99
National Geographic
National Geographic Excursion Series 8x42 Binoculars
In stock

Regular price $159.99
Alpen Optics
Alpen Shasta Ridge 8x36 Porro Binoculars
In stock

Regular price $99.99
Alpen Optics
Alpen Shasta Ridge 10x36 Porro Binoculars
In stock

Regular price $99.99
Alpen Optics
Alpen Shasta Ridge 10x42 Binoculars
In stock

Regular price $199.99
Alpen Optics
Alpen Chisos 12x50 ED Binoculars
In stock

Regular price $249.99
Alpen Optics
Alpen Chisos 10x50 ED Binoculars
In stock

Regular price $249.99
Alpen Optics
Alpen Chisos 10x42 ED Binoculars
In stock

Regular price $219.99
Alpen Optics
Alpen Chisos 8x42 ED Binoculars
In stock

Regular price $219.99
20% off
Athlon Optics
Athlon Optics Argos G2 HD 10x50 Binoculars
In stock

Sale price $249.99 Regular price $312.49
20% off
Athlon Optics
Athlon Optics Argos G2 HD 12x50 Binoculars
In stock

Sale price $259.99 Regular price $324.99
20% off
Athlon Optics
Athlon Optics Argos G2 HD 10x42 Binoculars
In stock

Sale price $229.99 Regular price $287.49
20% off
Athlon Optics
Athlon Optics Argos G2 HD 8x42 Binoculars
In stock

Sale price $219.99 Regular price $274.99

20% off
Athlon Optics
Athlon Optics Ares G2 UHD 15-45x65 Angled Spotting Scope
In stock

Sale price $719.99 Regular price $899.99
5% off
Kite Optics
Kite Optics APC 60 ED Stabilized Spotting Scope 17-35x

(1)

In stock

Sale price $2,299.00 Regular price $2,420.00
20% off
Athlon Optics
Athlon Optics Cronus G2 UHD 7-42×60 Spotting Scope
In stock

Sale price $1,099.99 Regular price $1,374.99
Alpen Optics
Alpen Shasta Ridge 20-60x80 Waterproof Spotting Scope
In stock

Regular price $399.99
20% off
Athlon Optics
Athlon Optics Cronus G2 UHD 20-60x86 Angled Spotting Scope
In stock

Sale price $1,099.99 Regular price $1,374.99
20% off
Athlon Optics
Athlon Optics Ares G2 UHD 15-45x65 Straight Angle Spotting Scope
In stock

Sale price $719.99 Regular price $899.99
10% off
Hawke Optics
Hawke Nature-Trek 20-60x80 Angled Spotting Scope
In stock

Sale price $369.99 Regular price $409.00
20% off
Athlon Optics
Athlon Argos HD 20-60x85 Spotting Scope - Straight
In stock

Sale price $419.99 Regular price $524.99
20% off
Athlon Optics
Athlon Argos HD 20-60x85 Spotting Scope - 45 Degree
In stock

Sale price $419.99 Regular price $524.99
5% off
Kite Optics
Kite Optics KSP 80 HD2 25-50x Spotting Scope
In stock

Sale price $2,999.00 Regular price $3,160.00
20% off
Athlon Optics
Athlon Optics Cronus G2 UHD Dual Focus 20-60x86 Angled Spotting Scope
In stock

Sale price $1,099.99 Regular price $1,374.99
20% off
Athlon Optics
Athlon Optics Ares G2 UHD 20-60x85 Straight Spotting Scope
In stock

Sale price $899.99 Regular price $1,124.99
20% off
Athlon Optics
Athlon Optics Ares G2 UHD 20-60x85 Angled Spotting Scope
In stock

Sale price $899.99 Regular price $1,124.99

15% off
Guide
Guide TD 633L Thermal Monocular with LRF
In stock

Sale price $1,699.00 Regular price $1,999.00
14% off
Guide
Guide TE211M Touchscreen Pocket Thermal Monocular
In stock

Sale price $429.00 Regular price $499.00
12% off
Guide
Guide Kodiak TK650L 3.0 Thermal Monocular with LRF
In stock

Sale price $2,899.00 Regular price $3,299.00
17% off
Guide
Guide Kodiak TK635L 3.0 Thermal Monocular with LRF
In stock

Sale price $2,499.00 Regular price $2,999.00
14% off
Guide
Guide TE211 Pocket Thermal Monocular
In stock

Sale price $429.00 Regular price $499.00
20% off
Guide
Guide TE421 Compact Thermal Monocular
In stock

Sale price $799.00 Regular price $999.00
21% off
Guide
Guide TD 653L Thermal Monocular with LRF
In stock

Sale price $1,899.00 Regular price $2,399.00
20% off
Athlon Optics
Athlon Optics Cronus ATS 35M-400 Thermal Monocular
In stock

Sale price $1,549.99 Regular price $1,937.49
20% off
Athlon Optics
Athlon Optics Cronus ATS 35ML-400 Thermal Monocular
In stock

Sale price $1,949.99 Regular price $2,437.49
Alpen Optics
Alpen Apex 384 35mm Thermal Monocular
In stock

Regular price $1,999.99
Alpen Optics
Alpen Apex 384 54mm Thermal Monocular
In stock

Regular price $2,499.99

AstroTelescopium insights

Best Athlon Binoculars: Every Line Compared, Neos to Cronus
Athlon binoculars compared: Neos, Argos, Midas and Cronus G2, and what each step up buys in glass, field of view, close focus and weight.
October 30, 2026
$Three telescopes to see Jupiter: an Explore FirstLight 100mm Maksutov-Cassegrain, an Explore Scientific 10-inch Dobsonian and an Explore Scientific ED127 refractor$

Minimum Telescope to See Jupiter: Bands, the Great Red Spot and Moons
Find the right telescope to see Jupiter: what 70mm, 4-inch and 8-inch scopes show, when the Great Red Spot faces Earth, and the February 2027 opposition.
October 23, 2026
$Explore Scientific Sidara Nano 114 reflector, Sidara Essential 102 refractor and Sidara Pro 127 Maksutov-Cassegrain telescopes on their tripods, side by side$

Explore Scientific Sidara Telescopes: Nano, Essential, Plus and Pro Compared
The Explore Scientific Sidara line compared: nine telescope packages on four mounts, from the grab-and-go Nano to the Sidara Pro GoTo, and who each one suits.
October 15, 2026
Best Giant Binoculars for Astronomy (2026): The Explore Scientific BT Line Compared
Giant binoculars for astronomy compared: Explore Scientific's BT-70, BT-120 and BT-150 ED, with the mount, eyepieces and magnification each one needs.
September 30, 2026
Best Steiner Binoculars: Every Line Compared by Use
The best Steiner binoculars by use: Navigator and Commander for boats, Predator and NightHunter for hunting, plus focus systems, specs and warranty.
September 27, 2026
Athlon Riflescopes Explained: What Each Line Actually Buys You
Athlon riflescopes compared: the 11 lines and 64 models we carry, with focal plane, tube size, glass tier and elevation travel. Authorized Athlon dealer.
September 19, 2026
8x32 vs 8x42 Binoculars: The Compact Gives Up Less Than You Think
8x32 vs 8x42 binoculars: the 42mm gathers 72% more light, but only past a 4mm pupil. How the fields compare, 25-28% less weight, and who should buy which.
August 19, 2026
10x42 vs 10x50 Binoculars: Where the Extra 8 mm Actually Pays
10x50 vs 10x42 binoculars: 42% more light that only pays after dusk, 5 oz more to carry, and usually no extra field of view. Real specs, picks and a verdict.
July 31, 2026

Premium Optics for Every Pursuit

At AstroTelescopium, we exist to help you see more — whether you’re tracking a bird in flight, scanning the tree line at dawn, exploring the night sky, or identifying targets in total darkness. Our passion is bringing the distant and the hidden into sharp focus.

We’ve established partnerships with industry-leading brands to offer a curated selection of premium binoculars, riflescopes, telescopes, spotting scopes, thermal imagers, and night vision devices. Our focus is on quality, value, and providing gear that meets the needs of both newcomers and seasoned observers.

Our mission is simple: to equip your next adventure with optics you can trust.

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