Telescopes > Skywatcher > AZ-Pronto > Skywatcher Teleskop AC 90/660 Evostar 90 AZ-Pronto

Product no.: 69290

Teleskop AC 90/660 Evostar 90 AZ-Pronto

Name: Skywatcher Teleskop AC 90/660 Evostar 90 AZ-Pronto
Brand: Skywatcher
Price: 315.24 USD

$ 315.24 incl. VAT, plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0)

Product description

More about the series AZ-Pronto...

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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Achromat

An achromatic is a refracting telescope (refractor), which consists of two lenses. It is the classic refractor design.

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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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660

Aperture ratio (f/)

Aperture ratio

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

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7,3

Resolving capacity

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

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1,53

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 weight (kg)

Tube weight

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

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2,40

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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Gear rack

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

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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AZ Pronto

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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Mounting saddle

Vixen-Style

Motors

Load capacity (kg)

Weight (kg)

3,5

GoTo control

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

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Height (°)

Altitude

The ascension axis adjustment range.

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(-70) - (+90)

Tripod

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

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Type

Tripod

Accessory plate

yes

Material

Aluminium

Included accessories

Many telescopes came with simple accessories.

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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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10mm & 25mm

Finder scope

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

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Red dot finder

A red LED dot is projected onto a disc.

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Dew Shield

yes

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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1.25", 90° star diagonal

Slow motion cable (piece)

Tube clamps

yes

General

Series

AZ-Pronto

Compact mount for mobile observers.

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Total weight (kg)

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

Moon & Planets

yes

Nature Observation

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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Recommended accessories

Telescope accessories > Prisms & Diagonal mirrors (3)

Omegon 1,25'' Amici Prism 90°

$ 169.00*

Omegon 45°, 1.25'' to 1.25'' Amici prism

$ 99.00*

Omegon 1.25" 45° erecting prism

$ 44.90*

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Telescope accessories > Barlow & Erecting Lenses (3)

Omegon 1.25'', 2X, 3 Element Barlow eyepiece

$ 99.00*

Omegon 3x Barlow lens, achromatic, 1.25"

$ 49.90*

Omegon 2x Barlow lense, achromatic, 1.25"

$ 39.90*

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Telescope accessories > Transport & storage (3)

Omegon carry case for 5" tubes/lenses

$ 99.00*

Omegon aluminium case, large

$ 89.00*

Omegon Carry case Bumbag for eyepieces

$ 59.00*

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Telescope accessories > Other (1)

Omegon Radiant Finder with fastener

$ 49.90*

Eyepieces (3)

Omegon Suitcase with eyepieces and accessories

$ 199.00*

Celestron Accessories set for Observer beginner telescope

$ 170.00*

Omegon Cronus eyepiece with Moon filter

$ 389.00*

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Filters (3)

Baader Filters 1.2“ semi APO filter (plane-optical polished)

$ 97.00*

Omegon Filters UHC Filter, 1.25“

$ 69.00*

Omegon Filters OIII filter 1.25''

$ 89.00*

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Astrophotography > Camera mounts (4)

Omegon Easypic Universal Smartphone Adapter

$ 129.00*

Omegon Universal digital camera adapter

$ 99.00*

Baader Microstage II

$ 59.00*

Omegon Universal digital camera adapter

$ 19.90*

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Observatories (1)

Omegon Tent observatory

$ 189.00*

Media (3)

John Wiley & Sons Astronomy For Dummies

$ 24.90*

Dorling Kindersley Stargazing for Beginners

$ 26.90*

Omegon Star chart Planisphere

$ 14.90*

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Outdoor > Lamps (4)

Explore Scientific Astronomy torch Astro R-Lite

$ 18.90*

Omegon LED headlamp

$ 13.90*

Omegon Astronomy torch Twin Light with brightness control

$ 13.90*

Omegon Astronomy torch Astro-Flashlight

$ 14.90*

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Globes & Maps (1)

Oculum Verlag Sky Quality Map Europe

$ 18.90*

Solar Observation (2)

Baader Sun filter foil 20 x 29 cm

$ 30.90*

Baader Sun filter foil AstroSolar® ECO-size OD 5.0 140x155mm

$ 17.90*

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Maintenance & Cleaning > Lens cleaners (3)

Omegon 7-in-1 lens cleaning set

$ 19.90*

Omegon cleaning system

$ 4.90*

Baader Lens Cleaning Pump Spray Optical Wonder 100ml

$ 15.90*

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Maintenance & Cleaning > Other (2)

Omegon microfibre cleaning cloth 20cm x 20cm

$ 4.90*

Omegon SPUDZ microfaser cleaning cloth

$ 14.90*

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*All prices include VAT plus shipping costs.

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