Sky-Watcher BK 909 EQ3-2 Telescpoe
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A classic achromatic refractor telescope featuring an objective lens with a 90 mm diameter and a 900 mm focal length. With a lens aperture of f/10, the telescope enables detailed Moon and Solar System planet observations.
An EQ3-2 equatorial mount supports the instrument. Large, robust head components and a stable overall build permit the use of substantial optical tubes. The mount allows for precise micromovements in both axes and can be fitted with straightforward drives to follow celestial motion.
Equipped with a Rack&Pinion focuser compatible with the 1.25" standard, the telescope's focuser finishes with a mounting point and securing screw for the diagonal mirror. This focuser works seamlessly with the Sky-Watcher focuser drive.
Astronomical observations made possible include:
Solar System:
- sunspot structures,
- lunar features over 2 km in size,
- additional bands on Jupiter and fine belt details,
- the Cassini Division in Saturn’s rings,
- Uranus as a small disc under high magnification,
- Neptune as a star-like point.
Stars:
- stellar objects across the sky up to 12th magnitude,
- double stars with separations greater than 1.5".
Deep sky objects:
- multiple globular clusters, emission nebulae, planetary nebulae, and galaxies,
- Messier catalog entries and brighter NGC objects (many reveal structural detail).
Kit includes:
- a 6x30 finder scope,
- two 1.25" eyepieces (Super 25 and Super 10),
- a 90-degree 1.25" diagonal mirror,
- a 2x 1.25" achromatic Barlow lens with T2 adapter.
Technical data
Optical system: refractor
Mount type: equatorial
Telescope control: micromovement knobs
Focuser: Rack&Pinion
Objective diameter: 90 mm
Focal length: 900 mm
Aperture: 10
Eyepiece focal lengths/magnification: 25 mm/36x, 10 mm/90x
Maximum useful magnification: 180x
Minimum useful magnification: 13x
Stellar magnitude limit: 12.1 mag
Resolution (Dawes): 1.29 arc seconds
Light gathering power (compared to the unaided eye): 165x
Tube length: 910 mm
Tripod height: 71-123 cm
Focuser diameter: 1.25
Manufacturer: Sky-Watcher, Taiwan
Militaria.pl is a premium dealer of Sky Watcher.
Sky-Watcher is a brand created in 1999 by Synta Technology Corporation from Taiwan, which is now the largest manufacturer of amateur astronomical equipment in the world. Its product range includes telescopes from simple models for beginners to advanced designs such as ED refractors, Esprit astrographs, and Maksutov systems. Dobsonian telescopes are extremely popular, including the iconic models with a mirror diameter of up to 16 inches, as well as the professional EQ8 equatorial mounts valued by astrophotographers. Since 2008, the company has been developing innovative Flex Tube Dobsonian telescopes with an extendable tube, which have become a distinctive symbol of Sky-Watcher in the world of astronomy.
| Weight | 10 kg |
|---|---|
| Objective lens diameter (mm) | 90 |
| Telescope type | Refractor |
| Focal length | 900 mm |
| Lens speed (f/x) | f/10 |
| Maximum magnification | 180x |
| Practical magnification range | 13-180 x |
| Telescope mount | Parallactic EQ |
| Finderscope in the set | Yes, optical |
| Limiting magnitude (magnitudo) | 12,4 mag |
| Replacement glasses in the set | Yes |
| Tripod material | Aluminium |
| Tube length | 910 mm |
| EAN | 5901691600058 |
| Manufacturer code | SW-2205 |
| Brand | Sky Watcher |
| EAN |
