Telescopes > Orion Optics UK > VX > Orion Optics UK Dobson telescope N 500/2000 VX20 DOB

Product no.: 57575

Dobson telescope N 500/2000 VX20 DOB

Name: Orion Optics UK Dobson telescope N 500/2000 VX20 DOB
Brand: Orion Optics UK
Price: 7300 USD

$ 7,300.00 incl. VAT plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0) Product safety

Product description

More about the series VX...

The VX20 is constructed from a semi truss design and modular optical housing. It is a full observatory model and could not be considered portable.

1/8PV HiLux Optics
Fan Assisted Cooling on Optics
9 Point Primary Mirror Cell
Tube Trims
OC1 Focuser with 1:10 reduction
Quality Spider
50mm Finder Scope
Black Tube Cradles
Tube weight:40kg
Tube length: 1945mm
Focal length: 2000mm
Focal ratio: f4
Primary mirror size: 500mm

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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500

Focal length (mm)

Focal length

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

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2000

Aperture ratio (f/)

Aperture ratio

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

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Resolving capacity

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

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0,23

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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15,3

Light gathering capacity

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

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5100

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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1000

Tube weight (kg)

Tube weight

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

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Tube material

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

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Aluminium

Tube length (mm)

Tube length

Including eyepiece, but excluding dew cap.

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1945

Tube construction

Truss Tube

Truss tube

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

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Reflector

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

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Secondary mirror diameter (mm)

100

finish quality

1/8

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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Gear reduction

1:10 fine focusing

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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Dobson

Dobsonian

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

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GoTo control

Object positioning system, available in real GoTo and also PushTo versions.

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Included accessories

Many telescopes came with simple accessories.

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Finder scope

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

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50mm

General

Series

A VX telescope will give some of the best images possible in a serious introductory telescope.

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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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Moon & Planets

yes

Nebulae & galaxies

yes

Nature Observation

Astrophotography

Sun

Telescopes for safe solar observing.

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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

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Product safety

Manufacturer: OOUK Ltd, Brymbo Road Lymedale Ind Est, ST5 9HX Newcastle under Lyme, http://www.orionoptics.co.uk/

Responsible person: NIMAX GmbH, Otto-Lilienthal-Str. 9, 86899 Landsberg am Lech, DE, [email protected]

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