Telescope Sky-Watcher BK 909AZ3
The Sky-Watcher BK 909AZ3 telescope is ideal for studying solar system objects. Thanks to coated optics, the telescope provides a high-contrast image with high detail. The pipe is mounted on an azimuth mount, so this model is optimal for visual observations. The telescope has simple and convenient operation. The 90 mm lens collects 65% more light than models with a 70 mm aperture. This model is an achromat, so the picture is clear and practically free from chromatic aberrations. A multilayer antireflective coating is applied to the optical surfaces, which significantly increases the light transmittance of the lenses. The rack and pinion focuser allows you to fine-tune sharpness. The set includes 25 mm and 10 mm eyepieces. It is better to start observing with a long-focus eyepiece. An eyepiece with a shorter focal length is used to study selected objects in detail. The lens hood prevents dew from appearing on the objective lens and also protects the image from flare. The AZ3 azimuth mount allows you to move the pipe in height and azimuth. There are fine movement mechanisms on both axes with convenient control knobs. The pipe moves smoothly, without jerking. The tripod comes already assembled, so you can quickly get the telescope ready for use.
- Optical design: Refractor achromat
- Lens diameter, mm: 90
- Focal length, mm: 900
- Antireflection (coating): multilayer
- Relative aperture: f/10
- Max. useful magnification, x: 180
- Max. magnitude, m: 12.3
- Angular resolution, ang. sec: 1.53
- Eyepiece 1: Super 25mm
- Eyepiece 2: Super 10mm
- Prism/mirror: Diagonal prism 45 degrees
- Finder: Optical 6x30 coated
- Mount: azimuth
- Mechanisms of fine movements: screw with a driver, along two axes
- User level: beginner
- Subject of observation: terrestrial objects, planets of the solar system
- Tripod: Reinforced (aluminum)
- Packaging dimensions, cm: 102x42x24 cm
- Telescope weight, kg: 7