Bresser Messier AR-90S/500 EXOS 2
Bresser Messier AR-90S/500 EXOS 2
Bresser Messier AR-90S/500 EXOS 2

Bresser Messier AR-90S/500 EXOS 2


Regular price$628.00
(Including VAT)

The Bresser Messier AR-90S Refractor telescope is designed for both ambitious beginners and advanced observers alike. This small refractor offers some great views of both the larger Solar System objects as well as a whole range of deep sky targets such as star clusters and brighter galaxies and nebula.

Although better suited for large deep sky objects like galaxies, nebula and star clusters, when using a stronger eyepiece / Barlow (sold seperately) this 90mm refractor telescope can still also provide some really sharp views of the moons surface along with some details on the larger planets such as Jupiters cloud bands as well as Saturns rings (1.5 billion km away). If you venture to darker skies away from the city lights then its also possible to make some nice observations of the brighter galaxies such as Bodes Galaxy or Andromeda Galaxy as well as a whole range of star clusters and brighter nebula such as the Orion Nebula.

With an Aperture of 90mm @ f/5.5, this refractor offers some good light gathering characteristics which is especially useful if you would like to try your hand at some Astrophotography. The sharp and sturdy 'Hexafoc' focuser enables precise focusing and there is also a 1/4" mounting bolt on the handle of the telescope to separately mount a DSLR camera if required. 

The Mount:
The EXOS-2 German Equatorial Mount is a long established, intermediate level mount designed to offer a sturdy platform for equipment weighing up to 13kg. While this is the non-computerised version of the mount, a conversion kit is available separately to upgrade it to provide full electronic tracking and GOTO functions also - Essential for long exposure Astrophotography

Telescope main features:
  • Optical design: Refractor telescope
  • Aperture: 90mm
  • Focal length: 500mm
  • Focal Ratio: f/5.5
  • OTA Weight: 1.9kg
  • Maximum recommended magnification: x 180
  • 6x30 viewfinder with crosshair eyepiece
  • Optimised finder mount for comfortable viewing
  • 31.7mm (1.25") zenith mirror
  • Smartphone adapter included
Equatorial Mount Features:
  • Stable parallactic mount with fine drives on both axis.
  • Ball bearings in both axis for more precise movements
  • Stable height adjustable stainless steel tripod (Min. 69cm / Max. 109.5cm)
  • Load capacity up to 13kg
  • Circular bubble level for easy horizontal alignment
  • Pole height scale for setting the latitude
  • Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software
  • Tripod weight: 4.7 kg
  • Mount weight: 5.6 kg (without counterweight)
  • Total weight incl. counterweight: 14.8 kg
  • Batteries: not included
Whats included:
  1. Refractor OTA
  2. 26mm Super Plössl eyepiece (31.7mm / 1.25")
  3. 31.7mm (1.25") zenith mirror
  4. 6x30 Optical View finder
  5. Rotatable star map
  6. Aperture Solar Filter
  7. Smartphone camera adapter
  8. Astronomy PC software Stellarium (via download)
  9. Bresser EXOS-2 mount
  10. Stainless steel tube field tripod with accessory tray
  11. 1 x 2 kg counterweight

SAFETY NOTICE: Never look directly at the Sun through your Binoculars or Telescope - immediate and permanent eye damage may result. For Solar viewing we have dedicated filters and Telescopes available for this purpose.


Please Note: Items in stock and ready for dispatch immediately are usually delivered within 24 - 72hrs. We always try to offer the quickest possible delivery so items may be sent directly from either our Dublin or our Munich location, depending on stock availability. If an item is a 'Special Order Item' it will require additional lead time before being dispatched eg. 5 - 10 Working days - This will be highlighted on the product page before purchase.

All orders are shipped using our reputable courier partners to ensure your items arrive safely and promptly. While we do offer International Delivery, we are unable to ship large Telescopes and Mounts outside of Ireland.



Est. Delivery Time after Dispatch:
24 - 72 hrs

Standard Tracked Delivery:
Ireland Nationwide: from €9.95

Note: Larger telescopes which contain multiple boxes include an additional surcharge. Shipping is calculated automatically at the checkout.





Est. Delivery Time after Dispatch:
24 - 72 hrs

Standard Tracked Delivery:
Norther Ireland: from €19.50+

Additional Info:

Standard Express Shipping rate applies up to a max order weight of 30kg Nationwide. - Large heavy items from 30kg+ include an additional surcharge, depending on the overall weight.

Unfortunately due to Brexit we are currently unable to ship to Mainland UK at this time. 


Est. Delivery Time after Dispatch:
24 - 72 hrs

Standard Tracked Delivery:
European Union: from €18.95+

Shipping available for items up to a max order total weight or volumetric weight of 27kg.

Additional Info:

If your country is not listed below please contact us for more information.

Standard EU Delivery Regions:
Germany, France, Belgium, Poland, Luxumbourg, Netherlands, Sweden, Denmark, Portugal, Spain, Austria, Italy, Poland, Czech Republic, Croatia, Malta, Greece


Est. Delivery Time after Dispatch:
48 - 72 hrs

Standard Tracked Delivery:
US & Canada: from €28.50+

Shipping service available for items up to a max order total weight or volumetric weight of 20kg.

Additional Info:

 * Customs / Import duties may apply in these regions. For more information please contact your local tax/customs office.

: Its essential that when placing an order, you include a valid 'Contact Telephone Number' for the delivery address or for the person receiving the item. This is necessary to avoid potential delays or problems with your delivery.

Please Note: Delivery times listed above are estimated. These are calculated from when your order is Completed & Dispatched (not from when the order is placed) and times may also vary for some remote post codes. Delivery service takes place Mon-Fri (excl. Bank/Public Holidays).

Shipping Disclaimer: All of our parcels are sent via a 3rd party registered courier service to ensure safe and prompt delivery. While we endeavor to ensure that all parcels are delivered within the specified time frame, 'Horizon Astronomy' can not be held responsible for delays due to adverse weather conditions or other courier/technical related issues outside of our control.

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