Bresser Messier AR-90/500 EXOS 1
Bresser Messier AR-90/500 EXOS 1
Bresser Messier AR-90/500 EXOS 1
Bresser Messier AR-90/500 EXOS 1
Bresser Messier AR-90/500 EXOS 1

Bresser Messier AR-90/500 EXOS 1


Regular price€479,95
(Including VAT)

This telescope is an ideal Astronomical instrument for both teens and adults who have an interest in Astronomy and who are looking for a telescope that offers sharp and clear optics with some slightly more advanced features than those found in most beginner telescopes. 

The AR 90 Refractor is the perfect telescope for experiencing some truly memorable views of the lunar surface as well as some of the larger planets of our solar system. Look further into deep space and you will also be able to enjoy some of the many star clusters and some of the details visible in the brighter nebula such as Orions core.

The Mount & Tripod.
The Bresser Messier EXOS-1 mount is part of Bresser's entry level Equatorial Mount options making it an ideal platform for smaller telescopes such as refractors and Maksutov designs. Many beginner equatorial mounts are flimsy and under engineered mounts which can lead to a lot of frustration and discouragement for beginners in Astronomy.  The EXOS-1 however, comes with a robust steel tripod and can comfortably carry optical tubes weighing up to 7kg for a stable visual observation of the night sky.

The optional motor drive for the RA axis makes usage even more comfortable, so there is no need to manually track the object and it is kept steadily in the eyepiece field of view.

Telescope Features:

  • Optical design: Refractor telescope
  • Aperture: 90mm
  • Focal length: 500mm
  • F Ratio: f/5.5
  • Maximum recommended magnification: 180x
  • 6 x 30 viewfinder
  • 31.7 mm (1.25") Star Diagonal
  • Smartphone adapter for celestial navigation included with built-in camera holder

Mount Features:

  • Stable parallactic mount with fine drive in both axes
  • Circular bubble level for easy horizontal alignment
  • Stable height-adjustable stainless steel tripod
  • Retro-fittable (Optional) tracking motor for the RA axis
  • Pole height scale for setting the latitude
  • Scaled graduated circular rings for easy finding of objects using a star atlas or planetarium software
  • Tripod weight: 4.7kg
  • Mount weight: 4kg (without counterweight)
  • Total weight incl. counterweight: 10.7kg

Whats included:

  1. 90mm Refractor Optical Tube
  2. 26mm Super Plössl eyepiece (31.7mm / 1.25")
  3. 31.7mm (1.25") Star Diagonal
  4. 6 x 30 optical viewfinder
  5. Rotatable star map
  6. Solar filter for safe solar observations during the day
  7. Smartphone adapter for celestial navigation
  8. Astronomy PC software Stellarium (via download)
  9. 1 x 2kg counterweight
  10. Equatorial EXOS 1 mount with stainless steel tripod

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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