Bresser Telescope AC 90/1200 Messier OTA (54356)

The traditional company Bresser offers telescopes under the Messier brand, providing an excellent price-performance ratio for ambitious beginners. These Messier telescope systems are expandable and retrofittable, making them suitable for use well beyond the initial entry point.

AC 90/1200 Optics
This high-quality refracting telescope is perfect for planetary observation and an excellent choice for advanced users entering the world of astronomy. With a 90 mm aperture, it collects approximately 200 times more light than the naked eye, allowing celestial objects to appear with remarkable detail and clarity.

Observe craters, valleys, and grooves on the Moon at a distance of nearly 400,000 km as if you were up close! The AC 90/1200 provides detailed images not only of the Moon but also of other celestial wonders. Marvel at Saturn's rings millions of kilometers away or discover Jupiter's "Great Red Spot," a massive storm in its atmosphere. Track seasonal changes on Mars or spot Venus' crescent shape.

This telescope gathers significantly more light than Galileo Galilei’s instrument, which he used to make his historic discoveries nearly 400 years ago. Its permanently installed exchangeable protective cap reduces dew formation and blocks stray light from entering, enhancing image contrast for clearer views.

Specifications

Optics:

• Type: Refractor

• Build: Achromat

• Aperture: 90 mm

• Focal length: 1200 mm

• Aperture ratio (f/): 13.3

• 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: 2.8 kg

• Coating: Multi-coated

• Tube material: Aluminum

• Tube construction: Full tube

Focuser:

• Type of build: Gear rack

• Eyepiece connection size: 1.25"

Mount Features:

• Mounting type: None (OTA only)

• GoTo control included? No

Tripod Features:

• Tripod not included

Included Accessories:

• Finder scope (6x30)

• SP eyepiece (26 mm, 1.25")

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

• Tube clamps included

• Vixen-style prism rail

• Solar filters included

General Information and Applications:
The AC 90/1200 is part of Bresser’s Messier series and is ideal for observing the Moon and planets, offering exceptional performance in these areas. It is also suitable for solar observation with appropriate solar filters but is not designed for deep-sky observations of nebulae or galaxies or for nature observation.

Additional Details:
This telescope is recommended for advanced users but is not suitable for beginners or permanent observatory setups.