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Telescopes > Celestron > NexStar SLT > Celestron Maksutov telescope MC 90/1250 NexStar 90 SLT GoTo
( 5 / 5 )
Product no.: 20044

Maksutov telescope MC 90/1250 NexStar 90 SLT GoTo

$ 482.00 incl. VAT, plus shipping costs
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Product description

More about the series NexStar SLT...

The brand new NexStar SLT series with SkyAlign technology offers computerized GoTo telescopes with a multilingual menu and huge database, as well as being excellent value for money.

The fully assembled ready-to-use tripod and quick-release couplings for connection to the fork mount, as well as the OTA on a fork arm allow setting up in just a few minutes - without the need of any tools!

A huge range of celestial objects are available to observe, and the computer can also select the best objects to observe month by month.

Intelligent design

Operation of precision servo motors and electronic position encoders is possible either via 8 AA batteries, 12V/2A power supply ( 821008), power tank ( 821040 for 7AH or 821043 for 17AH) or with a car battery cable ( 821016). The Internet upgradable NexStar hand controller lets you find up to 4000 objects at the touch of a button.

Celestron's revolutionary SkyAlign *

Thanks to 'SkyAlign', you no longer need to know either the positions or names of any stars. Simply type in the date and the time, select the nearest location from the list provided, do a three star alignment (the Sun, Moon and planets may also be used for this) and confirm with the press of a button.

The processor calculates the position of all visible celestial objects within seconds! With Solar system alignment, you simply select the Sun as a reference object (BUT ONLY USING A SAFE SOLAR FILTER AT THE FRONT OF THE TELESCOPE) and you can then even find the brighter stars and planets in the middle of the day - great for working with children.

Standard equipment and accessories include:

- computerized hand control with over 4,000 objects in the database

- quickly detachable, single-arm fork mount, quick mounting of the OTA and accessory tray without tools

- SkyAlign allows alignment on the basis of any three bright celestial objects, which makes polar alignment a breeze

- 'The Sky' level 1 planetarium software and NSOL telescope control software for the control of your computer are included in delivery

Specifications

Optics


Type
Reflector
Type of build
Maksutov
Aperture (mm)
90
Focal length (mm)
1250
Aperture ratio
13,9
Resolving capacity
1,28
Limit value (mag)
11,6
Light gathering capacity
170
Max. useful magnification
180

Eyepiece holder


Type of build
ETX thread
Connection ( to eyepiece)
1,25"

Mount


Type of build
NexStar SLT
Mounting type
Azimuthal
GoTo control
yes
Tracking speed
4 - 2 - 1 - 0,5
Tracking speed
32 - 16 - 8 - 4 - 2 - 1
Power supply
12
Power consumption (mA)
1200
Tracking
yes

GoTo control


Database
4.000
Software
NexStar
Alignment method
SkyAlign, 2-star, 1-star, parallactic, solar
GPS
optional
Tracking modes
parallactic - North-South
Tracking speeds
sideral, solar and lunar
Precision
8
GoTo Language
English

Tripod


Type
Tripod
Material
Steel

Included accessories


Software
TheSky
1.25'' eyepieces
25mm, 9mm
Deviating optics
1.25", 90° star diagonal
Finder scope
Red dot finder

General


Series
NexStar SLT
Total weight (kg)
5,44

Area of application


Astrophotography
yes
Moon & Planets
yes
Nature observation
yes
Nebulae & galaxies
yes
Sun
not recommended (Only with appropriate Sun filter)

recommended for


Beginners
yes
Advanced
yes
Experienced amateurs
no

Customer reviews

Good model for beginners

Review by V. W. on 28.10.2010 11:13:54

( 5 / 5 )

90 SLT with 1250mm focal length is a good model for the beginners. Max. useful magnification is actually slighly higher than 180, I feel it is around 200. The included 25mm & 9mm eyepiece are a good start, but soon I felt it was not enough for me. So I bought a Zoom Okular and a 2x Barlow lense and a couple of color filters. Zoom Okular is useful as I do not have to switch eyepiece between 9 and 25 constantly, and zooming makes one feel like flying in the space. 2x Barlow lense is said to be a must for every telescope owner, it is useful as it makes every eyepiece 2x, but one must be careful with the max.magnification of the telescope. When max.magnification is reached or exceeded, the view becomes extremely unstable and blur. In fact, I never really saw the red spot of Jupiter. The color filters are not so useful except the Pol, which I use for the moon watching, at least it will not blind my eyes any more. This telescope is said for Nebulae & galaxies, but I haven't seen any yet, maybe it is because of the light pollution here. However, it is amazing to see seven sisters.If you do not have a tight budget and weight isn't an issue, you can choose one with higher focal length.
Overall, I think this telescope has a good price/performance ratio and the service from astroshop is good.

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