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Reviews about this item

Review Summary

2022-05-09T12:03:50

Rated 5 out of 5

Amazing telescope!

As a starter telescope, it is way better than what I expected to arrive. My only "issue" would be that the telescope does not rotate as quickly as I'd like even at max speed but aside from that it works great! Definitely worth the buy

Jose G.

2022-03-11T08:06:22

Rated 5 out of 5

Celestron

Ordered my telescope which was on back order but I got it sooner than I thought I would. Set up was easy and I love searching the stars.

ROBERT H.

2021-03-26T08:57:25

Rated 5 out of 5

Great Little Scope

I recommend the scope for lunar and planetary photography. For those who are comfortable taking longer exposures, it is acceptable for deep space as well.

Ernest L.

2017-03-20T16:48:19

Rated 5 out of 5

Buy it!

Amazing telescope! Crisp image. Easy alignment. Intuitive controls. I am very happy with my choice of purchase.

Darin G.

2017-01-01T10:40:54

Rated 3 out of 5

Alignment

This scope requires 3 stars to align for the computer to work. The telescope must be level. I have had this scope about 3 yrs now and I still have not been able to balance this scope. Other then what I have said, The optics are good for a beginner.

DOUGLAS F.

2014-12-29T19:00:00

Rated 5 out of 5

Great Beginner Telescope

This is my first telescope and I am very pleased with it. The clarity is amazing and when dialed in correctly will follow an object through the sky the entire night. Of course I'm usually bouncing around and checking out several sights so I don't zero in on just one thing for long periods of time. But you can return to an object with ease which I have done many times. Honestly, this telescope has not disappointed at all; it's easy to transport, easy to set up and easy to use. Hope you enjoy!

space m.

2013-05-11T21:00:00

Rated 4 out of 5

Good beginning telescope

Purchased additional camera mount but too much wobble when pressing shutter button. Able to view Saturn and rings with 15MM lens. Starfinder lens takes getting used to but must be aligned properly to work correctly. Good beginner scope!

Silver_Buff

2013-02-12T19:00:00

Rated 4 out of 5

Great But sightscope seems poorly made

I use the scope to watch the space station and the moon. This is my first telescope, and other than the sightscope giving me a feeling it has a short, its wonderful. I will add The software provided seems old and feel the instruction book could use a major overhaul. It would be nice if the cord to update the Nextar firmware was provided instead of being an antiquated extra part. This is my first telescope EVER and well, it doesn't just come out of the box ready to go. Overall, a good buy, BUT again more information should be included.

Twotablesnotime

2012-02-26T19:00:00

Rated 4 out of 5

great travel telscope

I'm using it for travel Great is automatic pointing Not so great is vibration, extra weight helps Best regards from Germany to Peter @ Adorama

Dr R.

2011-10-25T21:00:00

Rated 5 out of 5

What a great buy

This is a fantastic deal for a refractor telescope. This is my 6th telescope. I have newts and schmits.My best schmit is a c8in and nwt is a 12in. This is my first refractor. I always wanted one but cost for aperture was was too expensive.The slt 102 seemed worth a try. I am so happy I did. I wanted a good grab and go and this is it. I already had a good 2in diagonal and put that in it right away. So i'm not gonna trash the 1.25 that comes with scope.I read bad comments about the star finder scope and have to say maybe these people got a different finder scope. I love mine. Works great! For twice the money you can't do better!

TOD R.

2011-10-16T21:00:00

Rated 4 out of 5

I would buy this product again

GoTo is not perfect but gets me close. Wish I could afford a bigger telescope but I think this is a good choice for the price.

DEBORAH H.

2011-09-16T21:00:00

Rated 5 out of 5

Perfect telescope for anyone

This is a fantastic telescope for a beginner or experienced astronomer. By upgrading the eyepieces and diagonal you'll get a high quality observing instrument. Beginners will have a small learning curve but once you understand the controls you'll be able to tour the universe. I have many telescopes from Celestron and they're are all large 11". This 102mm is highly portable and is a joy to use. I rate is 5 stars!

Henry M.

2011-01-11T19:00:00

Rated 1 out of 5

Spend a bit more and get something else

SLT handpiece light flickers on and off after a while, making a torch neccessary for using it. View is very limited with supllied eyepieces. Unstable. Hard to focus due to instability. Basically, the SLT doesn't work, we can never find 3 bright stars that it recognises. It is a kids toy product, buy something else!

bigeye

2010-05-09T21:00:00

Rated 4 out of 5

OMG! I can see Jupiters moons!

I found the scope simple to setup and simple to align and stayed in alignment pretty well. The optics seem to be of good quality for the price and the goto feature is just wonderful. The focus knob is too close to the main eyepiece causing a more unstable image as my finger bumps into into the diagonal after a 1/4 turn. A glow in the dark bubble mount would have been a nice touch as well.

GalaxyGax

2009-02-06T19:00:00

Rated 3 out of 5

great scope

very new at this....havent used my scope alot...just trying to figure it out

skullfet

2009-01-20T19:00:00

Rated 4 out of 5

Absolutely Great Telescope

We are just getting started with this telescope, We need more moonl

tom

Celestron NexStar SLT Telescope Specifications

  • Optical Design

    Maksutov-Cassegrain

  • Aperture (mm)

    90 mm (3.54 in)

  • Focal Length

    1250 mm (49 in)

  • Focal Ratio

    14

  • Focal Length of Eyepiece 1 (mm)

    25 mm (0.98 in)

  • Magnification of Eyepiece 1

    50 x

  • Focal Length of Eyepiece 2 (mm)

    9 mm (0.35 in)

  • Magnification of Eyepiece 2

    139 x

  • Finderscope

    StarPointer

  • Star Diagonal

    1.25

  • Mount Type

    Motorized Altazimuth

  • Accessory Tray

    No Tool, Quick release

  • Tripod

    Steel

  • Highest Useful Magnification

    213 x

  • Lowest Useful Magnification

    13 x

  • Limiting Stellar Magnitude

    12.3

  • Resolution (Rayleigh)

    1.55 arc seconds

  • Resolution (Dawes)

    1.29 arc seconds

  • Light Gathering Power

    165 x

  • Apparent Field of View

    1 Degree

  • Linear Field of View (@1000 yds)

    53 ft (16 m)

  • Optical Coatings

    Fully-Coated

  • Slew Speeds

    Nine slew speeds

  • Tracking Rates

    Sidereal, Solar and Lunar

  • Tracking Modes

    Alt-Az, EQ North and EQ South

  • Alignment Procedures

    SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align

  • Computer Hand Control

    Fully Computerized / Flash Upgradeable

  • Database

    4,000 Object Database

  • GPS

    Optional SkySync GPS Accessory (93969)

  • Warranty

    2-year Telescope Warranty

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About Celestron NexStar 90 SLT, 90mm (3.5") Maksutov-Cassegrain Telescope with Motorized Altazimuth Mount & 4,000+ Object Database

With the NexStar 90 SLT 90mm Maksutov-Cassegrain Telescope, you can unlock the mysteries of the cosmos right from your backyard. This high-quality, user-friendly telescope is an excellent choice for both beginners and mid-level astronomers, offering a seamless blend of innovative technology and durable design.

This telescope features a large 90mm aperture, allowing for an influx of light that results in brighter, clearer images of celestial bodies. From the intricate details of the lunar surface to the awe-inspiring rings of Saturn, the NexStar 90 SLT brings the universe closer to you.

Equipped with a motorized altazimuth mount, this telescope simplifies the tracking and observation of celestial objects. This feature, combined with the impressive 4000+ object database, makes it easier than ever to locate and identify distant stars, galaxies, and nebulae.

The NexStar 90 SLT is designed for portability and quick setup. It comes with preassembled, adjustable stainless steel tripods, and quick-release fork arms and tubes. This means you can have it ready for stargazing in just a few minutes, with no tools required!

This telescope is powered by 8 AA batteries (user-supplied) or an optional AC adapter. The internal battery compartment ensures rigid, low-vibration performance from the high precision servo motors while eliminating cord wrap issues.

The ergonomically designed hand control is another standout feature. It can be removed for remote use or left cradled for hands-free operation. With a simple touch of a button, you can select from the object catalog, change the slew speed, access fascinating information about an object, or check if a desired object is visible in the sky.

Finally, the NexStar 90 SLT utilizes Celestron's revolutionary SkyAlign technology. Simply input the date, time, and location into the hand control, then slew the telescope to any three bright celestial objects in the sky. You don't need to know the names of the stars - you can even pick the Moon or bright planets!

Whether you're a budding astronomer or a seasoned stargazer, the NexStar 90 SLT 90mm Maksutov-Cassegrain Telescope offers a stellar viewing experience.

Celestron NexStar 90 SLT, 90mm (3.5") Maksutov-Cassegrain Telescope with Motorized Altazimuth Mount & 4,000+ Object Database Features

  • Proven NexStar computer control technology
  • High quality 90mm Maksutov-Cassegrain
  • Database allows telescope to locate over 4,000 celestial objects
  • Fully computerized Altazimuth mount
  • SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
  • StarPointer finderscope to help with alignment and accurately locating objects
  • Quick-release fork arm mount, optical tube and accessory tray for quick no toolset up
  • Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
  • Sturdy stainless steel tripod and accessory tray included
  • Internal battery compartment to prevent cord wrap during use
  • Good for terrestrial and celestial observing
  • Auxiliary port for additional accessories such as GPS accessory
  • Includes CD-ROM "The Sky"; Astronomy Software which provides educationa bout the sky and printable sky maps
  • Includes NSOL telescope control software for basic control of your telescope via computer (with optional RS-232 cable)
  • Compatible with optional NexRemote telescope control software, for advanced control of your telescope via computer

What's in the box:

  • Tripod
  • Accessory Tray
  • 25mm Eyepiece
  • 9mm Eyepiece
  • StarPointer Finderscope
  • 90° Star Diagonal
  • Motorized Altazimuth Mount
  • Computer Hand Controller
  • Controller Mount
  • Original Box