Telescopes > GSO > Carbon Truss Tube > GSO Telescope N 254/1016 Truss Carbon OTA

Product no.: 51943

Telescope N 254/1016 Truss Carbon OTA

$ 2,200.00 incl. VAT, plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0)

Product description

It not only matters which telescope you buy but also where you buy it. Our additional services:

We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.
We also provide an edition of the exciting astronomy magazine, “Sterne und Weltraum” with each telescope.

Specifications

Optics

A telescope tube is referred to as an optic because it contains the components necessary to collect and concentrate light.

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Aperture (mm)

Aperture

The aperture indicates the diameter of the objective lens or the mirror.

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254

Aperture ratio (f/)

Aperture ratio

Is the ratio of the aperture to the focal length of a telescope.

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Tube weight (kg)

Tube weight

The weight of the tube is critical for the correct choice of mount.

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Tube construction

Truss Tube

Truss tube

In contrast to the solid tube, here the optical tube is constructed of rods.

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Tube material

Most telescopes are made of steel, aluminium or carbon fibre.

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Carbon

Carbon is especially light and stable, but is also more expensive than metal

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Type

There are basically two different types of telescope. A distinction is made between refractor (lens) and reflector (mirror) telescopes.

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Reflector

Resolving capacity

The ability of the optic to discern the fine detail of objects that are close together.

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0,45

Type of build

Describes the exact structure of the telescope thereby further subdividing the different types of telescope.

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Newton

Reflector telescope with a secondary mirror at the beginning of the tube which redirects light to one side.

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Focal length (mm)

Focal length

This is the distance between the objective lens or mirror and the focal point.

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1016

Limit value (mag)

Limit value

Describes the brightness of a star or point-shaped object, which can still just be distinguished by the telescope. The naked eye, for example, can make out stars with a magnitude of up to 6.

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13,8

Light gathering capacity

Light-gathering capacity of the telescope compared to the eye.

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1320

Max. useful magnification

The telescope’s magnification should not exceed this factor, because otherwise the image will appear weak and dark.

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508

Reflector

Special characteristics which only reflectors possess, can be found under this heading.

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reflectivity

Secondary mirror diameter (mm)

Main mirror´s construction

Main mirror construction

Here, the construction type means the geometric shape of the primary mirror.

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parabolic

Focuser

A focuser is used to hold an eyepiece. The image can be focussed using the focus wheels on the side.

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Connection ( to eyepiece)

Focusers are available in 1.25" or 2" formats. Many 2" focusers also have a 1.25" adapter.

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Type of build

There are basically two different construction types: the rack and pinion focuser and the Crayford focuser.

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Monorail

Gear reduction

1:10 Fine movement

Mount

A mount is the foundation of an astronomical telescope. It usually consists of the mount head and an appropriate tripod.

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Mounting type

Are mainly differentiated between equatorial and altazimuth. A special type of altazimuth mount is the Dobsonian mount.

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no mount

Type of build

Describes the exact construction of the particular mount and thereby further subdivides the different types of mount.

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OTA

An OTA is an optical tube without a mount. It is short for optical tube assembly.

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Included accessories

Many telescopes came with simple accessories.

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Prism rail

Losmandy-Style

Eyepiece adaptor

1,25" - 2"

Finder scope

A mini telescope used to locate a celestial object. There are optical finders and red dot finders.

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8x50

General

Series

Carbon Truss Tube

Area of application

The area of application will give you a broad overview of the purposes for which the telescope is suited.

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Astrophotography

yes

Nature Observation

Recommended for

Recommended for...

The classification of the telescopes according to their suitability for beginners, advanced or observatories is useful as an initial orientation.

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Beginners

Telescopes that are supplied as a complete system and are easy to operate.

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Advanced

Telescopes for experienced observers, but also for ambitious beginners.

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yes

Observatories

Telescopes suitable for a fixed mount, whether that is in the garden or an observatory.

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yes

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