Telescopes > Solar telescopes > LS40THa > Lunt Solar Systems Sonnenteleskop ST 40/400 LS40T Ha B500

Lunt Solar Systems

Product no.: 72097

Sonnenteleskop ST 40/400 LS40T Ha B500

Name: Lunt Solar Systems Sonnenteleskop ST 40/400 LS40T Ha B500
Brand: Lunt Solar Systems
Price: 1471.53 USD

$ 1,471.53 incl. VAT, plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0)

Product description

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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Refractor

Type of build

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

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Solar H-Alpha

With H-alpha telescopes you can observe prominences, flares and filaments on the Sun. Additionally, these telescopes have an etalon filter and a blocking filter.

Caution: you can also buy versions without the blocking filter. You should never use these without a blocking filter.

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Aperture (mm)

Aperture

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

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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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400

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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3,45

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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Double Stack

Many solar telescopes are also available with a Double Stack.

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Filter systems

H-alpha

Tube weight (kg)

Tube weight

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

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1,2

Tube length (mm)

Tube length

Including eyepiece, but excluding dew cap.

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410

Block filter diameter (mm)

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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Type of build

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

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Helical

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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1.25

Connecting threaded socket (camera-side)

Motorized

Ring clamp

yes

Gear reduction

without

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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OTA

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

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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

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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Solar finder

Dew Shield

Deviating optics

Erecting systems

A telescope always displays an object upside down. This law of optics can only be compensated for by an erecting system. Erecting lenses, diagonal mirrors or Amici prisms provide you with an upright image. Diagonal mirrors provide an upright but back-to-front image and Amici prisms provide an upright and right-sided image.

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Blockfilter

Prism rail

Vixen-Style

Solar Filters

yes

Carrying handle

Extension tubes

Transport cases

General

shipping weight (kg)

Shipping weight

The weight of the telescope together with accessories and packaging.

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3,6

Series

LS40THa

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

Moon & Planets

yes

Nature Observation

Nebulae & galaxies

yes

Sun

Telescopes for safe solar observing.

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yes

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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