Telescopes > ETX > Meade ETX90 AT Maksutov-Cassegrain 90/1250 UHTC GoTo

Product no.: 49933

ETX90 AT Maksutov-Cassegrain 90/1250 UHTC GoTo

Name: Meade ETX90 AT Maksutov-Cassegrain 90/1250 UHTC GoTo
Brand: Meade
Price: 1262.07 USD

$ 1,262.07 incl. VAT, plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0)

Product description

More about the series ETX...

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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Coating

UHTC

This special multi-layer coating provides up to 15% more light transmission.

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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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Maksutov

Maksutov-Cassegrain telescopes have a compact design, but a very long focal length. At the front there is a Maksutov lens. These telescopes are very well suited for planetary observing.

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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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1250

Aperture ratio (f/)

Aperture ratio

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

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13,9

Resolving capacity

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

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1,28

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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11,6

Light gathering capacity

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

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170

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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180

Tube construction

Full tube

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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ETX thread

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"

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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Battery compartment

yes

Type of build

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

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ETX

Mounting type

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

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Azimuthal

These astronomical mounts are particularly lightweight and compact.

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GoTo control

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

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yes

GoTo control

Database

30.000

GPS

The Global Positioning System simplifies the initialisation of a computerised control system.

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Hand Controller

AudioStar

GoTo Language

English

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

Steel

Type

Tripod

Included accessories

Many telescopes came with simple accessories.

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Prism rail

Vixen-Style

1.25'' eyepieces

Eyepieces are needed for observing. Depending on the focal length, you achieve a certain level of magnification.
The specification 1.25" refers to the diameter of the connector (1.25" = 31.8 millimetres).

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26mm Ploessl eyepiece 1,25

Moon filter

yes

Camera adaptor

Smartphone

The adjustable holder allows a smartphone to be attached to the telescope's eyepiece.

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Miscellaneous

Moon Map 260

Compass

yes

General

Total weight (kg)

8,6

Series

ETX

Compact telescopes with computer control (GoTo).

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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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Astrophotography

yes

Moon & Planets

yes

Nature Observation

yes

Nebulae & galaxies

yes

Sun

Telescopes for safe solar observing.

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no (Only with appropriate Sun filter)

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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yes

Advanced

Telescopes for experienced observers, but also for ambitious beginners.

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Observatories

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

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Miscellaneous

Battery type

Mignon (AA, LR6)

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Media (1)

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*All prices include VAT plus shipping costs.

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