Sky-Watcher BK 909 EQ3-2 Telescpoe
A telescope being a classic achromatic refractor designed for detailed observations of the Solar System objects and brighter deep-sky objects. The optical system based on a 90 mm diameter lens and 900 mm focal length provides very good image sharpness.
90 mm lens and 900 mm focal length - precision of observation
The optical system with a lens speed of f/10 enables obtaining clear and high-contrast images. These parameters are particularly useful during Moon and planet observations, where accuracy in detail rendering is crucial. The telescope allows noticing surface structures and subtle differences in the brightness of observed objects.
Operating parameters, durable construction
The magnification range from 13x to 180x allows adapting the image to the type of observed object. The telescope offers a light-gathering capacity 165 times greater than the human eye, which enables the observation of fainter objects. An adjustable tripod with a height of 71-123 cm allows adjusting the stand to the user, while a tube length of 910 mm ensures stable operation of the optical system.
1.25" Rack&Pinion focuser for smooth focus adjustment
The telescope is equipped with a 1.25" standard rack focuser which allows precise focus adjustment. The construction is compatible with additional Sky-Watcher drives, allowing further expansion of the set. A screw mount stabilizes optical accessories during operation.
EQ3-2 equatorial mount - stability and movement control
The model is equipped with an EQ3-2 equatorial mount, which allows guiding the telescope in accordance with the movement of the celestial sphere. The head structure provides stability even at higher magnification, and the micro-movement knobs allow precise positioning in both axes. The mount is adapted for connecting drives, facilitating object tracking during longer observations.
possibility to observe from planets to deep-sky objects
The Solar System:
- detailed observations of the Moon's surface (objects >2 km)
- cloud belts on Jupiter and their structure
- Cassini division in Saturn's rings
- Uranus as a disk, Neptune as a point
- observation of sunspots (with an appropriate filter)
Stars
- objects up to 12.4 magnitude
- separating double stars from about 1.5"
Deep-sky objects
- globular clusters, nebulae, galaxies
- Messier catalogue objects and brighter NGC with visible details
accessories included
The telescope is equipped with a set of elements allowing you to start observations without the need to purchase additional accessories.
The set includes:
- 6x30 finder facilitating object location
- two eyepieces (Super 25 and Super 10)
- 90 deg diagonal
- 2x Barlow lens increasing available magnifications
main features
- achromatic refractor
- lens diameter 90 mm
- focal length 900 mm
- lens speed f/10
- detailed observations of the Moon and planets
- EQ3-2 equatorial mount
- micro-movement knobs
- possibility of connecting drives
- 1.25" Rack&Pinion focuser
- compatibility with Sky-Watcher accessories
- magnifications: 13x - 180x
- resolution 1.29"
- star range 12.4 mag
- light-gathering capacity 165x
- adjustable tripod 71-123 cm
Militaria.pl is a premium dealer of Sky Watcher.
Sky-Watcher is a brand created in 1999 by Taiwan's Synta Technology Corporation, which is now the world's largest manufacturer of amateur astronomy equipment. Its range includes telescopes from simple models for beginners to advanced designs such as ED refractors, Esprit astrographs, and Maksutov systems. Dobsonian telescopes are especially popular, including iconic models with mirror diameters of up to 16 inches, as well as 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 |
| Focuser diameter | 1.25" |
| Finderscope in the set | Yes, optical |
| Limiting magnitude (magnitudo) | 12,4 mag |
| Replacement glasses in the set | Yes |
| Tripod material | Aluminium |
| Tube material | Aluminium |
| Tube length | 910 mm |
| EAN | 5901691600058 |
| Manufacturer code | SW-2205 |
| Brand | Sky Watcher |
| EAN |