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BRESSER Messier AR-90/900 EXOS-2 GoTo Telescope

90 mm f/10 refractor telescope with mount and tripod

  • Achromatic refractor with equatorial GoTo mount
  • D: 90 mm; F: 900 mm; F/D: F/10
  • EXOS-2 GoTo mount with solid stainless steel tripod and max. load of 13 kg
  • Engine-driven GoTo mount + Startracker handbox
  • Included: Telescope with Mount + Accessories
  • Aperture Solar-filter and smartphone adapter for celestial navigation included
  • Modern goto-system with big matrix-display


NEW – now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.

Excellent for entering into the hobby of astronomy: 90mm aperture delivers 200 times more light than the naked eye! Observe craters, valleys and rims on the moon from nearly 400,000km away just as you would look out of the window of a spaceship! The BRESSER Messier AR-90 does not only provide highly detailed views of the moon: Gaze at the division of the rings of saturn millions of kilometers away or explore the Great Red Spot of Jupiter, a giant tornado in Jupiter's atmosphere. Watch the seasons on Mars and find the sickle of Venus. The Messier AR-90 gives you images that are many times brighter than the instrument Galileo Galilei was using for his famous explorations almost 400 years ago.


  • Optical design: refractor telescope
  • Lens diameter: 90 mm / focal length: 900 mm / F/10
  • Maximum recommended magnification: 180x
  • Telescope for night and solar observation
  • 6x30 viewfinder with crosshair eyepiece
  • Optimised finder mount for comfortable viewing
  • 31.7mm (1.25") zenith mirror
  • Smartphone adapter for celestial navigation included


  • Stable parallactic mount with fine drive in both axes
  • Ball bearings in both axes for more precise movements
  • Stable height adjustable stainless steel tripod ( Min. 69 cm / Max. 109.5cm )
  • Load capacity up to 13 kg payload
  • Circular bubble for easy horizontal alignment
  • GoTo Mount with motors and hand box controller, for easy finding and guiding moon, planets, stars and much more
  • ST-4 compatible autoguider interface
  • Pole height scale for setting the latitude
  • Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software
  • Pole finder scope with optional illumination ( item no. 4964212 )
  • Tripod weight: 4.7 kg
  • Mount weight: 6.7 kg (without counterweight)
  • Total weight incl. counterweight: 13.4 kg
  • Batteries: not included


  • Optical tube
  • 26mm Super Plössl eyepiece (31.7mm / 1.25")
  • 31.7 mm (1.25") diagonal mirror
  • Integrated 31.7 mm and T2 adapter
  • 6x30 optical viewfinder
  • Rotatable star map
  • Aperture solar filter
  • Smartphone adapter for celestial navigation
  • Adjustable polar finder scope with optional illumination
  • Astronomy PC software Stellarium (via download)
  • Equatorial EXOS 2 GOTO mount with stainless steel tripod and Startracker handcontroller
  • Stainless steel tube field tripod with accessory tray
  • 1 x 2 kg counterweight
  • Precision mount with ball bearings in all axis and polar finder scope with optional illumination
  • With integrated camera holder

BRESSER Messier AR-90/900 EXOS-2 GoTo Telescope

Sales Tax Included
    Field of application
    • Deep Sky Observation
    • Deep Sky Photography
    • Lunar observation
    • Lunar photography
    • Planetary observation
    • Planetary photography
    • Solar observation
    Focus Group
    • Beginners
    • Advanced Amateurs
    Product Family Refractor telescope
    Optical design Achromatic Refractor
    Maximum recommended magnification 180
    Mirror/Lens diam. 90 mm
    Focal length 900 mm
    Aperture ratio 10
    Type of coating Multi coated
    Finderscope 6 x 30 mm
    Material OTA Aluminium
    Colour white
    Polefinder scope included, illumination optional
    Fine movements Electric (RA and DEC)
    Material tripod3 Stainless Steel
    Eyepiece Barrel Diameter 31.7 mm
    Material Aluminium
    Mount Type German/Equatorial Mount with GoTo
    Product series Messier
    Extended warranty 10 years
    Total length 1000 mm
    Total width 1000 mm
    Total height 1700 mm
    Net weight OTA (incl. accessories) 2.5 kg
    Tube length 900 mm
    Tripod height adjustment
    Maximum load capacity 13 kg
    Net weight mount (incl. accessories) 6.7 kg
    Net weight tripod (incl. accessories) 4.7 kg
    Counterweight 2 kg
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