Bresser Telescope AC 90/900 Messier EXOS 2 GoTo (23216)

The traditional company Bresser offers telescopes under the Messier brand, designed for ambitious beginners with an excellent price-performance ratio. These Messier telescope systems are expandable and retrofittable, ensuring they remain useful well beyond the initial entry point.

Bresser Messier R-90
The MESSIER R-90 is an outstanding choice for beginners exploring astronomy. With a 90 mm aperture, it collects 200 times more light than the naked eye, allowing you to observe craters, valleys, and rims on the Moon from nearly 400,000 km away—offering a view akin to looking out of a spaceship window!

This telescope provides highly detailed views of the Moon and enables exploration of other celestial wonders. Observe Saturn’s ring divisions millions of kilometers away or study Jupiter’s Great Red Spot, a massive tornado in its atmosphere. Witness seasonal changes on Mars or find Venus’ crescent shape. The MESSIER R-90 delivers images that are far brighter than those seen through the telescope Galileo Galilei used for his groundbreaking discoveries nearly 400 years ago.

Bresser EXOS-2 Mounting
The EXOS-2 is a sturdy mount with a high load capacity (up to 13 kg for visual use and 10 kg for astrophotography). It offers precise tracking for both visual observations and astrophotography. Double radial ball bearings ensure smooth operation, while optimized RA axes reduce play. This robust and precisely crafted mount makes it easy to begin astrophotography. Additionally, a motorized 2-axis control can be added.

Included with the EXOS-2 Mount:

• Sturdy mounting

• Matching counterweight

• Robust steel tripod with three legs

GoTo System for EXOS-2
The GoTo system simplifies celestial observations, even for beginners. By pressing a button, the telescope automatically moves to your selected celestial object (planet, nebula, or galaxy) and tracks it continuously. The database contains over 100,000 objects, allowing you to observe or photograph faint objects without needing advanced location skills.

Specifications

Optics:

• Type: Refractor

• Build: Achromat

• Aperture: 90 mm

• Focal length: 900 mm

• Aperture ratio (f/): 10

• Resolving capacity: 1.28 arcseconds

• Limiting magnitude: 11.6 mag

• Light gathering capacity: 170x (compared to the human eye)

• Maximum useful magnification: 180x

• Tube weight: 2.5 kg

• Tube construction: Full tube

Focuser:

• Type of build: Gear rack

• Eyepiece connection size: 1.25"

Mount Features:

• Type of mount: Equatorial (EXOS-2 GoTo)

• GoTo control included? Yes

GoTo System Details:

• Database size: Over 100,000 objects

• Hand controller model: Bresser GoTo system

Tripod Details:

• Type: Tripod

• Height range: 68–108 cm

• Weight of tripod only: 4.6 kg

• Material: Steel

Included Accessories:

• SP eyepiece (26 mm, 1.25") included

• Finder scope: 6x30

• Deviating optics included (1.25", 90° star diagonal)

• Solar filters included

• Polar finder scope included

General Information and Applications:
This telescope is part of Bresser’s Messier series and is ideal for observing the Moon, planets, nebulae, galaxies, and even the Sun (with appropriate solar filters). It is recommended for beginners but not intended for advanced users or permanent observatory setups.