Sky-Watcher BK 909 EQ3-2 Telescpoe
- description
- technical data
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Telescope which is a classic achromatic refractor. Equipped with a lenticular lens with a diameter of 90 mm and a focal length of 900 mm. The light intensity of the lens is equal to f/10. It allows detailed observations of the Moon and planets of the Solar System.
The telescope is equipped with an EQ3-2 parallactic mount. The elements of the head are massive, and the whole is stable enough to mount a telescope with a large diameter. The mount allows precise micromotion in both axes and the connection of simple drives to guide the telescope behind the movement of the sky.
The model uses a rack-and-pinion eyepiece focuser in 1.25" standard, terminating in a mount with a screw that attaches an angular cap. The focuser is compatible with the Sky-Watcher focuser drive.
The telescope allows the following astronomical observations:
Solar system:
- sunspot structure,
- formations on the Moon larger than 2 km,
- additional belts on Jupiter and fine details in the belts,
- Cassini's break in Saturn's rings,
- Uranus visible as a small disk at high magnification,
- Neptune as a point object.
Stars:
- stars throughout the sky with a brightness of up to 12 magnitude,
- stars separated by more than 1.5".
Deep sky objects:
- dozens of globular clusters, emission nebulae, planetary nebulae and galaxies,
- objects from the Messier catalog and brighter NGC objects (many brighter objects show details).
The set includes:
- 6x30 finder,
- 2x 1.25" eyepiece (Super 25, Super 10),
- 90 deg./1.25" angled cap (mirror),
- achromatic Barlow lens 2x 1.25" with T2 adapter.
Technical data
Optical system: refractor
Mount type: parallactic
Telescope control: micromotion knobs
Eyepiece focuser: rack and pinion
Objective diameter: 90 mm
Objective focal length: 900 mm
Focal length: 10
Eyepiece focal length/magnification: 25 mm/36x, 10 mm/90x
Highest usable magnification: 180x
Smallest useful magnification: 13x
Stellar range: 12.4 mag
Resolution (Dawes): 1.29 angular seconds
Collective capacity (compared to the unaided eye): 165x
Tube length: 910 mm
Tripod height: 71-123 cm
Exhaust diameter: 1,25
Manufacturer: Sky-Watcher, Taiwan
MILITARY is a premium dealer of Sky Watcher.
Sky-Watcher is a brand established in 1999 on the initiative of the Taiwanese company Synta Technology Corporation, currently recognized as the world's largest manufacturer of amateur astronomical equipment. The range includes telescopes suitable for various levels of expertise, from simple models for beginners to advanced solutions such as ED refractors, Esprit series astrographs, and Maksutov designs. Dobsonian telescopes are also highly regarded, including flagship models with mirrors up to 16 inches in diameter, as well as precision EQ8 equatorial mounts, which are popular with astrophotography enthusiasts. Since 2008, the company has been developing unique Flex Tube Dobsonian telescopes with a telescopically extendable tube, which have become one of the most recognizable elements of Sky-Watcher's offer in the world of amateur 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 |
