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Bresser Messier AR-127S/635 EXOS 2 GOTO


Quick Overview

The Bresser Messier AR-127S/635 EXOS 2 GOTO is a great widefield deep sky telescope, which is also capable of delivering good Planetary and Lunar views.
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The Bresser Messier AR-127S/635 EXOS 2 GOTO is a great widefield deep sky telescope, which is also capable of delivering good Planetary and Lunar views (though those observers wanting a more dedicated planetary and lunar scope should take a look at the Bresser Messier AR-127L Exos 2 Goto - the longer focal length version of this scope).  The telescope comes with Bresser's unique Hexfocus focuser - ingeniously capable of supporting the weight and loading of accessories, no matter where the telescope is pointed in the sky.

The supplied Bresser Messier Exos 2 Goto Mount is fully featured equatorial Goto mount, capable of carrying instruments in the 3-6-inch class (refractors) or 5-8-inch class (shorter focal length reflectors and catadioptrics).

This mount has two fully ball-raced bearings capable of supporting instruments of up to 13kg in weight (manufacturer specifications). Photographic and autoguiding capacity of this mount will be effectively one half to two thirds of this figure, depending on the configuration of the telescope in question. Polar alignment is easy with the built-in polar alignment scope (optional polar illuminator available separately) with reticule and asterism guide (for both Northern and Southern hemispheres), enabling precise polar offset. Instruments and cameras can be mounted directly to the mount via standard Vixen/Synta-profile dovetail bar. An knurled attachment bolt and additional locking thread is provided to make sure your scope stays put throughout visual observation and imaging, but can also be easily detached or re-balanced when needed.

The Bresser Messier Exos 2 Goto is powered by an included 12v battery pack, which takes non-rechargeable D-cell batteries (not included). However, the mount can be powered by a conventional Powertank or other rechargeable 12v system, or can be run off a 240v mains supply using the Revelation Meade-compatible 12v DC converter (BC169).

The Goto system of the Besser Exos 2 Goto is controlled through the StarTracker handset with large LCD display, containing a 30,000+ object database. Extra features including guided tours with satellite, comet and asteroid tracking.

The mount features an ST-4 autoguiding port for direct autoguiding camera connection via the standard ST-4 protocol.

A sturdily constructed, finely finished, variable-height field tripod with spreader bar brace provides the stability and vibration damping required for visual observation and astrophotography. This leg brace also doubles as an accessory tray, with cutouts for eyepieces and accessories which can be easily identified in the dark. The whole mount is easy to set up and take down again after an evening's viewing, and can either be kept together for transport, or alternatively broken down into easily-managed separate parts.


  • Achromatic refractor telescope with rock-solid German equatorial GoTo mount                           

  • Aperture: 127mm / Focal length: 635mm / Focal Ratio: F5

  • Equatorial EXOS-2 GoTo mount with a load capacitiy of approx. 13 kilograms, dependent on the length of the OTA installed

  • GoTo mount with motors in both axis and Startracker handbox for automatic finding and guiding of the celestial objects

  • Included: Telescope with GoTo mount and tripod, 26mm Super Ploessl eyepiece (31.7mm / 1.25"), 31.7mm (1.25") diagonal mirror, integrated 31.7 mm and T2 adapter, mounting ring (, handle with camera holder, 8x50 Viewfinder, astronomy PC software Stellarium,   

  • Included: Lens telescope with GoTo mount, tripod and counterweight, 26mm eyepiece, 6x30 optical finder, zenith mirror, tube clamp with GP rail, PC Software Stellarium, rotatable starmap

  • Precision mount with ball bearings in all axis and polar finder scope with optional illumination


Specific Feature:

  • High end Hexafoc-focuser with 2.5" free inner diameter

  • GoTo Mount with motors and hand box controller, for easy finding and guiding moon, planets, stars and much more

  • Bubble level for easy tripod setup

  • 8x50 straight through viewfinder with reticle; optimized finder socket for comfortable use

  • 31.7mm (1.25") diagonal mirror

  • Cradle rings with handle and integrated piggyback camera holder (1/4 thread)

  • Adjustable polar finder scope (optional illuminator available separately)

  • Dovetail plate with stainless steel rail

  • 50,8mm (2") to 31.7mm (1.25") adapter with integrated T2 thread (T2-adapter ring for your camera is needed)

What's in the Box:

  • Telescope with mount and tripod 

  • 26mm Super Plössl eyepiece 31.7mm(1.25")

  • 31.7mm (1.25") Star diagonal 

  • integrated 31,7mm and T2 adapter

  • Adjustable polar finder scope with optional illumination

  • Tube clamps with Vixen profile dovetail

  • Handle and camera holder

  • 8x50 optical finder

  • Astronomy software Stellarium

  • rotatable star map

Handset Database contains 272,944 objects :

  • Category Quantity

  • Solar System Catalogue 10

  • Famous Star Catalogue 33

  • Constellation Catalogue 88

  • Messier Catalogue 110

  • Bright Star Catalogue 167

  • Sh2 Catalogue 313

  • IC Catalogue 5386

  • NGC Catalogue 7840

  • SAO Catalogue 258997

  • Catalogue Total: 272944

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