Bresser Telescope AC 102/460 AR-102 Messier Hexafoc EXOS-1 (59990)

The Bresser Messier series offers telescopes designed for ambitious beginners, combining excellent performance with affordability. These systems are expandable and retrofittable, ensuring they remain useful as users advance in their astronomy journey.

The AC 102/460 refractor telescope is compact and features a short focal length, making it ideal for wide-field observations. It is particularly suited for viewing large structures in the night sky, such as open star clusters along the Milky Way.

This telescope now includes the improved Hexafoc focuser with a free aperture of 65mm. For astrophotography, it can be upgraded with a 1:10 reduction ratio fine focuser (available as an accessory), allowing for precise focus adjustments.

Bresser EXOS-1 Mount
The EXOS-1 mount is designed for smaller optics and can support up to 7 kg without vibration or instability. It provides a stable platform for precise observations and can be optionally upgraded with a motor for the RA-axis to enhance tracking capabilities.

Included with the Mount:

• Sturdy equatorial mount

• Counterweight included (4.5 kg)

• Robust steel tripod with three legs

Specifications

Optics:

• Type: Refractor

• Type of build: Achromat

• Aperture: 102 mm

• Focal length: 460 mm

• Aperture ratio (f/): 4.5

• Resolving capacity: 1.13 arcseconds

• Limit magnitude: 11.8

• Light gathering capacity: 210x (compared to the naked eye)

• Maximum useful magnification: 204x

• Tube diameter: 104 mm

• Tube weight: 2.8 kg

• Tube material: Aluminium

• Coating: Multi-coated

• Tube construction: Full tube

Focuser:

• Connection to eyepiece: 2"

• Type of build: Hexafoc focuser

• Camera-side threaded socket connection: T2 thread included

Mount:

• Type of build: EXOS-1 mount

• Mounting type: Equatorial

• GoTo control: No

• Motors: No (optional)

• Load capacity: Up to 7 kg

Tripod:

• Type: Steel tripod with accessory plate included (Canibelle included)

• Maximum height: 106 cm

• Minimum height: 63 cm

• Weight: 4.6 kg

Included Accessories:

• Dew shield included

• Eyepiece adaptor compatible with both 2" and 1.25" eyepieces

• Finder scope (6x30) included

• Eyepiece (1.25"): SP 26 mm included

• Deviating optics: 1.25", 90° star diagonal included

• Prism rail (Vixen-style) included

• Slow-motion cable included

Miscellaneous:
Polar finder scope not included; finder base compatible with Meade/Explore Scientific T-profile

General Information:

• Series: Messier series by Bresser

• Total weight (including mount and tripod): Approximately 14.7 kg

Area of Application:

• Moon & Planets Observation: Yes

• Nebulae & Galaxies Observation: Yes

• Nature Observation: No

• Astrophotography: No

• Sun Observation: No (only with an appropriate solar filter)

Recommended For:

• Beginners: Yes

• Advanced users: No

• Observatories: No