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Bresser AC 102/1000 Messier EXOS-2 GoTo SET
Combining a 102mm achromatic refractor with the EXOS-2 GoTo system, the Bresser AC 102/1000 Messier EXOS-2 GoTo SET provides motorized movement and automated object finding.
- 102mm aperture has 1.14-arcsecond resolving power
- 1000mm focal length uses f/9.8 optics
- Achromatic refractor uses multi-coated optics
- EXOS-2 mount provides dual-axis motorization
- GoTo controller supports automated object finding
- 26mm eyepiece provides listed 38x magnification
- 6×30 finder and tripod included
In Stock
Description
Locating targets without a star chart, the Bresser AC 102/1000 Messier EXOS-2 GoTo SET shares its high-load platform with the manual version of this 102mm tube while adding a dual-axis motorized StarTracker system: align on two stars and it locates and tracks the rest of its catalog on its own, no manual searching required.
Running the motorized system needs 12V DC power, via 8x D-cell batteries or an optional AC-DC adapter — factor that into an observing session away from an outlet. In return, an illuminated finder scope and a second counterweight handle heavier eyepiece loads than the manual EXOS-2 ships with, giving this bundle genuine headroom for a small camera or a heavier eyepiece added down the road without hitting a payload limit right away.
Key Features of Bresser AC 102/1000 Messier EXOS-2 GoTo SET
A dual-axis motorized StarTracker system on the same high-load EXOS-2 platform automates target-finding for this long-focus 102mm tube, removing the need for manual star-hopping entirely.
- Dual-axis motorized tracking follows targets automatically once aligned
- Hand controller’s built-in database locates catalogued objects without star charts
- 6×30 illuminated finder scope simplifies two-star alignment after dark
- Two included 4.5kg counterweights balance heavier accessory loads
- Runs on 8x D-cell batteries or an optional AC-DC adapter
- Same high-load stainless steel tripod platform as the manual EXOS-2 build
- Automated tracking keeps a target centered through an entire viewing session
Why Choose the EXOS-2 GoTo SET
Against the manual EXOS-2 sharing this mount platform, the GoTo version trades battery-free operation for automated object-finding — a clear win for tracking Messier objects and planetary detail without spending the session star-hopping by hand across an unfamiliar patch of sky.
Applications & Use Cases
Built for intermediate motorized tracking, this telescope handles high-contrast observation of the Moon, planetary detail, and bright Messier deep-sky objects with automated GoTo object-finding built in from the start.
- Observers who want automated tracking of Messier catalog objects
- Anyone who’d rather point and confirm than manually locate each target
- Buyers ready to manage battery upkeep in exchange for hands-off tracking
Bresser Warranty & Support
The AC 102/1000 EXOS-2 GoTo SET carries a 2-Year Factory Warranty covering manufacturing defects, handled directly through Bresser’s support channel.
Bresser AC 102/1000 Messier EXOS-2 GoTo SET Specs
| Brand | Bresser |
| Full Model Code | Bresser Messier AC 102/1000 EXOS-2 GoTo |
| Country of Origin | Germany |
| Optical Design | Achromatic Refractor |
| Aperture | 102 mm (4.01 inches) |
| Focal Length | 1000 mm |
| Focal Ratio | f/9.8 |
| Optical Coatings | Multi-Coated Optics |
| Secondary Mirror Obstruction | 0 mm (0%) |
| Secondary Mirror Obstruction by Area | 0% |
| Backfocus Distance | 120 mm |
| Rear Cell Thread Type | M42x0.75 Male T-thread via integrated adapter |
| Image Circle Diameter | 30 mm (Optimized 1.25-inch visual / basic imaging coverage) |
| Resolving Power | 1.14 Arcseconds |
| Limiting Visual Magnitude | 11.8 |
| Highest Useful Magnification | 200x |
| Lowest Useful Magnification | 15x |
| Optical Tube Material | Aluminum |
| Focuser Style & Mechanism | 2.5-inch Hexafoc Heavy-Duty Rack and Pinion Focuser |
| Mirror Lock Mechanism | No (Refractor Tube Configuration) |
| Optical Tube Dimensions | 103 mm x 1000 mm |
| Optical Tube Weight | 5.2 kg (11.46 lbs) - Tube Only |
| Mount Attachment Type | EXOS-2 German Equatorial Mount with StarTracker GoTo System (Dual-Axis Motorized) |
| Finder Scope Specification | 6x30 Illuminated Optical Finder Scope |
| Included Accessories | 26mm Super Plossl Eyepiece (38x), 2-inch Zenith Mirror (90-degree), 1.25-inch Adapter, EXOS-2 Equatorial Mount, Stainless Steel Field Tripod, StarTracker Hand Controller, Counterweights (2x 4.5kg) |
| Power Requirements | 12V DC via 8x D-Cell batteries or optional external AC-DC adapter |
| Standard Warranty | 2-Year Factory Warranty |
| Application | Intermediate motorized tracking and high-contrast observation of the moon, planet details, bright Messier deep-sky objects, and automated object finding via GoTo system setup. |
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