Telescopes > Geoptik > Geoptik Dobson telescope N 404/1815 DOB Nadirus 16" Kit without optics

Product no.: 54432

Dobson telescope N 404/1815 DOB Nadirus 16" Kit without optics

Name: Geoptik Dobson telescope N 404/1815 DOB Nadirus 16" Kit without optics
Brand: Geoptik
Price: 2340 USD

$ 2,340.00 incl. VAT, plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0)

Product description

In this kit you will find everything that is needed to assemble your truss-tube Dobsonian.

The focuser, mirror and finder components are not included.

The kit is clear coloured (see illustration).

The hub for the secondary mirror is included.

The mirror cells are made of wood.

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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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

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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Aperture (mm)

Aperture

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

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404

Focal length (mm)

Focal length

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

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1815

Resolving capacity

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

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4,5

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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0,28

Light gathering capacity

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

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3330

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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808

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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Aluminium

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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Type of build

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

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Dobson

Mounting type

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

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Dobson

Dobsonian

Large and high-quality optic with an inexpensive rockerbox mount.

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Motors

Tripod

The tripod is a part of the mount, it provides a stable stand and is usually adjustable in height.

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Material

Wood

Type

Rockerbox

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

not recommended

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