Telescope BK 709EQ1

Description

Reflector telescope with an aperture of 70 mm and a focal length of 900 mm. The telescope is suspended from the EQ1 equatorial mount, which is intended for astronomical observations. Equatorial mounts make it possible to follow the observed object as it moves across the sky. In addition, the mount has micromovements, thanks to which the telescope can be precisely aligned with the object. This telescope is well suited for observing the moon, it allows you to see the basic details of the planets of the solar system, and after using an additional solar filter, it allows you to observe sunspots.

Optical system

BK709EQ1 is a long focal length achromatic refractor. This means that it is a refracting telescope built on the basis of a two-element objective with lenses made of two different types of optical glass. The lens diameter is 70 mm and the focal length 900 mm. With a light output of f / 12.9, such a telescope can be considered a long-focus telescope, which is best suited for lunar, solar (with a filter) and planetary observations. The set also includes 2 Kellner glasses with a focal length of 25 mm and 10 mm.

Assembly

The telescope is suspended from a lightweight EQ1 equatorial mount. This is a mount designed for beginners, the lightest of the equatorial mounts manufactured by Sky-Watcher. Instead of the azimuth and altitude axes, such a mount has two axes that are inclined at an angle corresponding to the latitude. Thanks to this axis arrangement, the tracking of objects in the sky only takes place in one axis. It is even possible to connect a simple optional drive, which significantly increases comfort by keeping the objects in the telescope's field of view. This is capable of micro-movements, i.e. special buttons that allow the telescope to be moved smoothly in both axes.

Focuser

The telescope is equipped with a 1.25″ focusser. It is a rack and pinion lift (so-called rack & pinion lift). The 1.25″ standard mirror angle attachment is included in the set. The focuser is compatible with the Sky-Watcher parts.

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