Bresser AR 90/500 Messier NANO AZ Astronomical Telescope with Solar Filter

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Bresser AR 90/500 Messier NANO AZ Astronomical Telescope with Solar Filter

Article No.: 4790505
Manufactured by: Bresser
Shipping weight: 5.3 kg

Our price: 316.70 €

1-2 weeks

We have the goods in stock at our store and we can send them immediately.

We do not have the goods physically with us, but it is available from a remote supplier. In this case, we order them immediately and therefore it may take several weeks before we are able to send them to you.

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This product is available in the following variants:
Bresser AC 80/640 Messier AZ Nano Astronomical Telescope + Solar Filter	235.50 €
Bresser AR 90/500 Messier NANO AZ Astronomical Telescope with Solar Filter	316.70 €

Bresser AR 90/500 Messier NANO AZ Astronomical Telescope with Solar Filter

The Bresser AR 90/500 Messier NANO AZ is a premium astronomical telescope featuring an achromatic refractor design with a 90mm aperture and 500mm focal length. This compact refractor with an f/5.5 aperture ratio represents the ideal choice for beginning astronomers and casual observers. The telescope comes complete with an intuitive azimuthal AZ Nano mount that enables easy locating and tracking of celestial objects without complex setup procedures.

Superior Optical Performance

The achromatic 90mm objective lens provides sufficiently bright and contrasted images for observing lunar craters, planetary disks, and bright deep space objects. The f/5.5 aperture ratio ensures optimal balance between light gathering power and resolution capability, allowing observation of not only lunar formations but also Saturn's rings, Jupiter's bands, and bright star clusters. The azimuthal mount AZ Nano is designed for maximum operational simplicity and requires no previous experience with astronomical equipment.

Portable and Travel-Friendly Design

Compact dimensions and low weight make this telescope an ideal companion for travels and astronomical expeditions. The tube measuring just 480mm in length and weighing 1.9kg can be easily transported and quickly assembled at observation sites. The total system weight including mount reaches only 5.3kg, enabling easy carrying even for less experienced users. The solar filter included in the package expands observation possibilities to include safe monitoring of solar activity, sunspots, and granulation on our star's surface.

Technical Specifications

Optical design: Achromatic refractor
Aperture: 90mm
Focal length: 500mm
Focal ratio: f/5.5
Mount type: Azimuthal AZ Nano
Tube weight: 1.9kg
Total system weight: 5.3kg
Tube length: 480mm
Included accessories: Solar filter

Versatile Observation Capabilities

The telescope is designed for a wide spectrum of astronomical observations including lunar landscape with its rich topography of craters, valleys, and mountain ranges. Planetary observation reveals details on Mars during oppositions, Venus phases, Jupiter's four largest moons, and Saturn's majestic ring system. For deep space enthusiasts, it offers views of bright star clusters, double stars, and the brightest nebulae. Thanks to the included solar filter, users can safely observe solar activity and monitor changes on our nearest star's surface.

Ideal Observation Targets

Lunar craters, mountains, and maria
Planetary details: Jupiter's bands, Saturn's rings, Mars surface features
Bright deep sky objects: Orion Nebula, Pleiades cluster, Andromeda Galaxy
Double stars and variable stars
Solar activity with included safety filter

User-Friendly Mount System

The azimuthal AZ Nano mount represents a perfect compromise between stability and operational simplicity. Its intuitive movements in horizontal and vertical directions correspond to natural sky orientation methods. The mount requires no complex balancing or polar alignment, significantly simplifying observation preparation. The system can be quickly assembled and users can immediately begin discovering cosmic wonders without lengthy learning curves for operating complex mechanisms.

Perfect for Beginners and Education

This telescope excels as an educational tool and entry-level instrument for astronomy enthusiasts. The straightforward setup process, intuitive controls, and immediate gratification from clear, bright images make it perfect for family use and educational institutions. The included solar filter adds daytime observation capabilities, extending the telescope's utility beyond traditional nighttime astronomy.

Specifications

Type of telescope: Achromatic refractor

Optical scheme: Achromat

Focal length: 500 mm

Aperture: 90 mm (3.5″)

Aperture ratio: 5.5

Resolving capacity: 1.28"

Limit value: 11.6 magnitude

Light gathering capacity: 165x

Product range: Messier

Max. useful magnification: 180x

Connection type: 1.25″

Mounting: Azimuthal

Recommended for: Beginner, Advanced

Application area: Deep Sky observation, Planets observation, Sun observation

Package contents of "Bresser AR 90/500 Messier NANO AZ Astronomical Telescope with Solar Filter":
✅ Optical tube 90/500
✅ Tripod
✅ Finder scope 6x30
✅ 1.25″ eyepiece 26mm (magnification 19x)
✅ Solar filter

Typical magnifications

The recommended magnification is highlighted in yellow.
D = telescope aperture in millimeters

Maximum useful (2D):
167x
(with a 3 mm eyepiece)

Maximum Useful Magnification (2D)
The highest magnification that a telescope can realistically use. Above this value, the image becomes dim, blurry, and shows no additional detail due to optical and atmospheric limits.

Resolving (1.4D):
125x
(with a 4 mm eyepiece)

TIP: Binorum Plössl 4mm 52° 1.25″ Eyepiece

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Resolving Magnification (1.4D)
The magnification at which the telescope reaches its maximum resolving power. Fine details become visible, but increasing magnification further does not improve sharpness.

High (1D):
83x
(with a 6 mm eyepiece)

High Magnification (1D)
A strong magnification suitable for detailed observations of the Moon, planets, and close double stars under good atmospheric conditions.

Optimal (0.7D):
63x
(with a 8 mm eyepiece)

TIP: Binorum Super Plössl 8mm 50° SPL 1.25″ Eyepiece

44.90 €

Optimal Magnification (0.7D)
The best overall magnification for most observations. It provides a good balance between image brightness, contrast, and detail, and is often the most comfortable to use.

Medium (D/2):
45x
(with a 11 mm eyepiece)

Medium Magnification (D/2)
A versatile magnification range suitable for many deep-sky objects, such as star clusters and galaxies, as well as general lunar observing.

Low (D/3):
29x
(with a 17 mm eyepiece)

Low Magnification (D/3)
A wide-field magnification used for scanning the sky, observing large nebulae, and locating objects before switching to higher power.

Minimum (D/6):
15x
(with a 33 mm eyepiece)

Minimum Magnification (D/6)
The lowest practical magnification of a telescope. It provides the widest possible field of view and is mainly used for star fields, Milky Way observations, and object finding.