The ultimate 24" GoTo Dobsonian. Massive light-gathering power with the state-of-the-art OnStep GoTo
controller for effortless object finding. WiFi, Bluetooth, and smart hand controller built in. All in a
portable 77 kg package with folding ALT bearing.
f/3.3: $12,500
USD
Deposit (50% of base system)
Sandwich Mirror
OnStep GoTo
All Metal
Dual-Speed Focuser
Aperture
610mm (24")
Focal Ratio
f/3.3
Mirror
Sandwich
Weight
~77 kg / 170 lbs
Exclusive Sandwich Mirror Technology
The lightweight sandwich mirror design cools dramatically faster than solid mirrors, minimizing thermal
gradients and eliminating a major source of image distortion. Unlike fan-based cooling, this passive
design achieves rapid and stable thermal equilibrium naturally — without introducing vibration.
Why this matters
One of the primary limitations in large-aperture telescopes is "mirror seeing" — turbulence caused by
temperature differences between the mirror and the surrounding air. In changing conditions, a thick
solid mirror may never fully reach equilibrium, preventing it from achieving its full optical
performance. The sandwich mirror design minimizes this effect, allowing the system to reach optimal
performance quickly and consistently, delivering sharper and more stable views without the need for
active cooling.
OnStep GoTo Controller
State-of-the-art GoTo system with built-in WiFi and Bluetooth. Supports Sky Safari, Stellarium, ASCOM,
and INDI drivers. Smart Hand Controller with ~30,000 objects. Advanced 1-9 star alignment, telescope
encoders, and sidereal/lunar/solar tracking rates.
Enhanced Optical Coatings
96% enhanced reflective coatings on both primary and secondary mirrors with precision-controlled
dielectric layers. Maximum light throughput for bright, contrast-rich images on deep-sky targets.
18-Point Flotation Mirror Cell
Optimized 18-point flotation system with both sling and 90-degree pivoting lateral supports. Three-point
rod-end collimation is completely independent from lateral support, eliminating the potato-chip
astigmatism found in simpler designs. Housed in a real mirror box for safe transport.
All Metal Construction
CNC-machined 6063-T6 aluminum alloy truss tubes, structural steel mirror cell, and aluminum alloy OTA
and mount structure. 8 rigid truss tubes and folding ALT bearing for extreme portability. Finished with
environmentally friendly black powder coating.
WiFi 802.11n with built-in web interface accessible from any browser. Bluetooth 4.2 classic support.
Direct wireless support for Sky Safari and Stellarium. iOS and Android Virtual Handpad apps.
Software Compatibility
INDI drivers for CdC, KStars, and Ekos. ASCOM drivers with IP and Serial support under the LX200 protocol.
Smart Hand Controller with ~30,000 objects for standalone operation.
Tracking & Alignment
Advanced 1-9 star alignment. Sidereal, lunar, and solar tracking rates. Telescope encoders for extra
pointing accuracy. Park/unpark function, spiral search, and Real Time Clock. Slewing rates up to 4 degrees
per second.
"M42 The Orion Nebula via 2 minutes of Lucky Image Acquisition on the UL24G with a Nexus Coma Corrector."
Damien Kilmartin
Damien Kilmartin with his UL24g telescope
M42 The Orion Nebula via 2 minutes of Lucky Image Acquisition on the UL24G with a Nexus Coma Corrector -
Damien Kilmartin
Jeff Roberson's UL24
Rick Foster with his UL24
Rick Foster with his UL24 at the RASC-TO Dark Sky Observatory
Add these when ordering, or contact us at info@hubble-optics.com
View all 12 accessories
Carbon Fiber Truss Tubes
$800
Elegant, stronger, and lighter Carbon Fiber Truss Tubes.
Red Dot Finder Scope
$45
Light weight Red Dot Finder with brackets and dovetail. Simple, effective, and easy to adjust. Free
shipping with system.
8x50 Illuminated Finder Scope
$100
Top quality 50mm achromatic finder with dovetail bracket. Scale markings and adjustable red illumination.
+$25 shipping.
Truss Tube Grips
$7 each
0.9m cushioned vinyl foam grips — insulate, cushion vibration, and protect the truss tubes. Free shipping
with system.
Shroud
$120
Top quality Nylon/Lycra blend. Blocks stray light for better contrast. Free shipping with system.
Wheelbarrow Handle
$250
Stainless steel handles with two 6" pneumatic tires and ball bearings. Includes $100 shipping. Order with
system only.
Truss Tube Carry Bag
$60
Deluxe waterproof Nylon bag with draw-string cord. Free shipping with system.
5-Star Artificial Star
$22
Essential collimation tool. Free shipping when ordered with system.
Scope Storage Cover
$120
Polyurethane-coated nylon — light reflecting, water and dust resistant. Full protection in storage and in
the field. Free shipping with system.
Mirror Cover
$45
Strong plastic mirror cover. Free shipping with system.
12V Battery Holder
$30
Steel battery holder for the GoTo system. Free shipping with system.
Light Baffle
$50
Reduces stray light for improved contrast. Free shipping with system.
No fan needed — our sandwich mirror reaches thermal equilibrium without one.
There's a 50% deposit for the base system, and the full payment for the optional accessories at the order
time. The rest including shipping will be paid before the delivery (about 90 days after the deposit) via a
PayPal invoice.
UL24g will be shipped in 4 boxes: the main structure 1 & 2, the truss tubes, and the primary mirror.
Country
Regular (US$)
US
1750
Others
1750
* Shipped via FedEx, the exact cost depends on your specific address.
