Parabolic primary mirror
The UL32sg combines a large parabolic primary with a secondary mirror that directs the image to the side-mounted focuser.
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Hubble Optics
Hubble Optics Smart 32 Inch Premium Ultra Light Dobsonian Telescope
$48,290.00
32-inch aperture with motorised OnStep pointing and tracking.
The Hubble Optics UL32sg is an observatory-scale 812.8 mm parabolic reflector with an f/3.3 optical system. Its OnStep controller provides motorised object finding and tracking, with a structure that requires substantial space and careful handling.
Plan around the size of the complete UL32sg.
The assembled telescope weighs approximately 150 kg and its eyepiece is approximately 2570 mm above the ground when pointing straight up. Plan suitable access to the eyepiece and enough working room around the structure. A modular design does not make the assembled telescope a one-person lift.
Optional finders, shrouds and handling accessories are separate.
How the UL32sg supports and focuses the image.
27-point mirror support
The flotation cell distributes the rear support of the primary mirror. Lateral support and collimation are separate, so alignment does not rely on distorting the mirror edge.
Dual-speed focusing
The 2-inch linear-bearing Crayford focuser gives you coarse adjustment followed by fine focus. Eyepieces are selected separately to suit the targets and magnifications you use.
OnStep control and the Smart Finder option.
OnStep pointing and tracking
Set up and align the telescope before commanding a GoTo move. Motorised tracking keeps the object in view as the sky turns.
Compatible software control
OnStep supports WiFi and Bluetooth connectivity, with SkySafari, Stellarium, ASCOM and INDI support. Compatible devices and software are separate.
Optional Smart Finder
The Smart Finder accessory adds image-based plate solving to refine pointing. The telescope can use OnStep GoTo without this accessory; confirm the Smart Finder package before relying on plate solving.
Plan the space and handling.
Assembled weightapproximately 150 kg
Eyepiece height at zenithapproximately 2570 mm
These figures describe the assembled telescope. Plan suitable lifting help and safe eyepiece access.
Good to know.
Choose eyepieces and finder separately
Eyepieces and a conventional optical finder are not included. Shrouds and other light-control accessories are separate options.
Check collimation after assembly
Collimation aligns the mirrors. Check it after reassembly and before observing. UL32sg assembly and setup manual.
Match the power supply to the controller
The motor drive and control electronics have separate power requirements. Follow the supplied controller power labels; do not substitute a supply from a smaller telescope.
Keep this telescope away from the Sun
Never point the telescope or finder at the Sun without the correct purpose-made solar protection. Unfiltered viewing can cause permanent eye damage.
Specifications.
Optics
Optical Design
Reflector
Optical Diameter
812.8mm
Focal Length
~2683mm (f/3.3)
Focal Ratio
f/3.3
Eyepiece Height at Zenith
approximately 2570 mm
Optics Type
Parabolic
Optical Quality
Diffraction limited (Strehl 0.95+, 1/10 wave PV secondary)
Focuser
2" dual-speed linear bearing Crayford (~50mm travel)
Mirror Coatings
96% Enhanced on both primary and secondary
Secondary mirror diameter
180 mm
Structure and controls
GoTo Controller
OnStep with built-in WiFi and Bluetooth
Tube Material
6063-T6 Aluminium Alloy, structural steel mirror cell
Tube Length
~2600mm (102")
Mirror support
27-point flotation cell
Assembled weight
approximately 150 kg
Eyepieces
Not included
Conventional finder scope
Not included
Telescope Control
OnStep Smart Go-To
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32-inch aperture with motorised OnStep pointing and tracking.
The Hubble Optics UL32sg is an observatory-scale 812.8 mm parabolic reflector with an f/3.3 optical system. Its OnStep controller provides motorised object finding and tracking, with a structure that requires substantial space and careful handling.
Plan around the size of the complete UL32sg.
The assembled telescope weighs approximately 150 kg and its eyepiece is approximately 2570 mm above the ground when pointing straight up. Plan suitable access to the eyepiece and enough working room around the structure. A modular design does not make the assembled telescope a one-person lift.
Optional finders, shrouds and handling accessories are separate.
How the UL32sg supports and focuses the image.
Parabolic primary mirror
The UL32sg combines a large parabolic primary with a secondary mirror that directs the image to the side-mounted focuser.
27-point mirror support
The flotation cell distributes the rear support of the primary mirror. Lateral support and collimation are separate, so alignment does not rely on distorting the mirror edge.
Dual-speed focusing
The 2-inch linear-bearing Crayford focuser gives you coarse adjustment followed by fine focus. Eyepieces are selected separately to suit the targets and magnifications you use.
OnStep control and the Smart Finder option.
OnStep pointing and tracking
Set up and align the telescope before commanding a GoTo move. Motorised tracking keeps the object in view as the sky turns.
Compatible software control
OnStep supports WiFi and Bluetooth connectivity, with SkySafari, Stellarium, ASCOM and INDI support. Compatible devices and software are separate.
Optional Smart Finder
The Smart Finder accessory adds image-based plate solving to refine pointing. The telescope can use OnStep GoTo without this accessory; confirm the Smart Finder package before relying on plate solving.
Plan the space and handling.
Assembled weightapproximately 150 kg
Eyepiece height at zenithapproximately 2570 mm
These figures describe the assembled telescope. Plan suitable lifting help and safe eyepiece access.
Good to know.
Choose eyepieces and finder separately
Eyepieces and a conventional optical finder are not included. Shrouds and other light-control accessories are separate options.
Check collimation after assembly
Collimation aligns the mirrors. Check it after reassembly and before observing. UL32sg assembly and setup manual.
Match the power supply to the controller
The motor drive and control electronics have separate power requirements. Follow the supplied controller power labels; do not substitute a supply from a smaller telescope.
Keep this telescope away from the Sun
Never point the telescope or finder at the Sun without the correct purpose-made solar protection. Unfiltered viewing can cause permanent eye damage.
Specifications.
Optics
Optical Design
Reflector
Optical Diameter
812.8mm
Focal Length
~2683mm (f/3.3)
Focal Ratio
f/3.3
Eyepiece Height at Zenith
approximately 2570 mm
Optics Type
Parabolic
Optical Quality
Diffraction limited (Strehl 0.95+, 1/10 wave PV secondary)
Focuser
2" dual-speed linear bearing Crayford (~50mm travel)
Mirror Coatings
96% Enhanced on both primary and secondary
Secondary mirror diameter
180 mm
Structure and controls
GoTo Controller
OnStep with built-in WiFi and Bluetooth
Tube Material
6063-T6 Aluminium Alloy, structural steel mirror cell
Tube Length
~2600mm (102")
Mirror support
27-point flotation cell
Assembled weight
approximately 150 kg
Eyepieces
Not included
Conventional finder scope
Not included
Telescope Control
OnStep Smart Go-To
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