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Celestron NexStar 102 SLT Telescope

Item# CELE024

(21 Ratings)

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List Price: $761.95
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  • Upgrade & Save!  Buy the NexStar 102 SLT Bundle
  • High quality 102mm short tube style refractor
  • StarPointer finderscope for alignment and accuracy
  • Quick-release fork arm mount, and accessory tray
  • Sturdy stainless steel tripod and accessory tray included
  • Good for terrestrial and celestial observing
Details & Dimensions
Guarantee & Returns

What's Included?

"The Sky" Astronomy Software


Designed to be an affordable entry-level to mid-level, computerized GOTO telescope, the Celestron NexStar SLT 102 Refractor is loaded with valuable design features. With pre-assembled, adjustable stainless steel tripods and quick-release fork arms and tubes, the NexStar SLT telescope can be set up in a matter of minutes - no tools required!

You'll see details of the lunar surface, Venus and its phases, Mars resolved as an orange disc, Jupiter and four moons, Saturn with rings plainly visible and much more! NexStar SLT refractors like the 102 SLT can also be used as land-based spotting scopes.

Intelligent Design

Powered by 8 AA user=supplied batteries, an optional AC adapter, optional car-battery adapter, or powertank power source, these NexStar GOTO's love to travel. The internal battery compartment provides power to the high precision servo motors for rigid low-vibration performance while eliminating cord wrap issues associated with external battery packs.

With the NexStar SLT's ergonomically engineered hand controller, the user is free to remove the hand control from its holder for remote use or leave it cradled for hands-free operation. With a touch of a button you can select the object catalog, change the slew speed, view fascinating information about an object, or simply find out whether a desired object is visible in the sky.

Standard Features & Accessories

  • Computerized hand controller with 4000-plus-object database
  • Quick-release fork-arm mount, optical tube and accessory tray for quick set-up
  • Comes with "The Sky" Level 1 planetarium software and NSOL telescope control software for controlling the telescope via computer; requires the optional Celestron Computer Cable
  • Internal battery compartment to prevent cord wrap during use
  • Sturdy stainless steel tripod
  • Auxiliary port for additional accessories such as an optional GPS accessory
  • Motorized altazimuth mount and fully computerized hand controller
  • US and International city database for easy location settings
  • Flash upgradeable hand-controller software and motor-control unit


About Celestron Refractor Telescopes

Celestron’s high-quality refractor telescopes allow beginners to improve upon Galileo’s vision with a simple, reliable design that is easy to use, requires minimal maintenance, and is versatile enough for land or sky viewing. Known for viewing planetary detail and splitting close double-stars.

A refractor telescope uses a lens as the primary. The lens at the front of the telescope bends the light passing through it until it comes to a single point called the “focal plane”. The long, thin tubes of refractor telescopes look much the same as those Galileo used centuries ago. High quality optical glass and multi-coatings provide today’s sky watchers views Galileo never dreamed of.

The refractor type of telescope is very popular with individuals who want mechanical simplicity, rugged reliability and ease of use. Because the focal length is limited by the length of the tube, refractor telescopes become quite bulky and expensive beyond a four inch aperture. This limits the light gathering properties of refractor telescopes, but it is an excellent choice for beginners and those who prefer simple operation and versatility. Refractor telescopes are also a popular choice because of their unobstructed view, high contrast and good definition.

Refractor Advantages


  • Easy to set-up and use
  • Simple and reliable design requires little or no maintenance
  • Excellent for lunar, planetary and binary star observing especially in larger apertures
  • Good for terrestrial viewing
  • High contrast images with no secondary mirror or diagonal obstruction
  • Color correction is good in achromatic designs and excellent in apochromatic and fluorite designs
  • Sealed optical tube reduces image-degrading air currents and protects optics
  • Objective lens is permanently mounted and aligned

Refractor Disadvantages


  • More expensive per inch of aperture than Newtonians or Catadioptrics
  • Heavier, longer and bulkier than equivalent aperture Newtonians and Catadioptrics
  • The cost and size factors limit the practical maximum size primary to smaller apertures
  • Some color aberration in achromatic designs (doublet)


Supplier Sku:
Shipping Restrictions:
Available for shipment to the USA and Canada only.

Dimensions & Specifications

Recommended Usage

Astrophotography , Viewing Galaxies/Star Clusters , Viewing Nebulae , Viewing the Moon , Viewing the Planets


2-Year Limited


Alt-Az Mount , GoTo



Weight Complete

14 lbs.



Lens Coating




Good for Astrophotography


Telescopes Series

Celestron NexStar SLT Telescopes

Optical Design




Focal Length


Focal Ratio


Mount Design

Computerized GOTO

Battery Included


Eyepiece 1

25mm (26x)

Highest Useful Magnification


Star Diagonal

1.25 inch

Object Database

4000 objects


1.14 Arc Seconds Resolving Power , 1.36 Arc Seconds Resolution , 12.5 Limiting Magnitude , 9mm (78x) Eyepiece 2

International Shipping


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The Perfect Accessories

Customer Reviews


by PowerReviews
Celestron NexStar 102 SLT Telescope

(based on 21 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.


  • Accurate (9)
  • Quality lenses (8)
  • Strong construction (8)
  • Compact (4)
  • Comfortable eyepiece (3)


    Best Uses

    • Astronomy (12)
      • Reviewer Profile:
      • Casual/ recreational (11)
      • Was this a gift?:
      • No (3)

    Most Liked Positive Review


    Nice 4 inch Refractor

    This is a nice 4 inch refractor. Very easy to use and light weight too . . . . you can just pick the whole thing up and carry it anywhere.
    Read complete review

    This is a nice 4 inch refractor. Very easy to use and light weight too . . . . you can just pick the whole thing up and carry it anywhere.

    Provides very good views of the moon.

    Jupiter, Saturn, Venus, star clusters, double stars, etc. are also within the reach of this scope. It has a surprising amount of light gathering for a medium size telescope. Very clear images at low and medium power (up to 80 power or so), the view gets a little blurry after that, but not too bad up to around 150 power.

    This is a perfect size telescope for easy transporting to the park or other dark areas, I just wrap it up in a quilt and throw it in the back seat !

    Works great in the daytime too, thanks to the alt-azimuth mount. Great for bird watching, with nice clear views.


    Most Liked Negative Review


    NexStar 102 SLT

    After 2 months of use I must say I wish I had purchased a better model.This unit is sort of a toy. You can see the Moon, WOW. The "finder...Read complete review

    After 2 months of use I must say I wish I had purchased a better model.This unit is sort of a toy. You can see the Moon, WOW. The "finder scope", if you can call it that; sucks. Had to replace that already.

    The "Sky Align" is a joke.

    Put up the bucks and get a Meade.

    I am sorry I purchased this thing.

    If I could return it and get a better unit I would.

    Reviewed by 21 customers

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    Displaying reviews 1-5

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    (0 of 14 customers found this review helpful)


    [*] construction

    By AngryAstronomer

    from Alaska

    Comments about Celestron NexStar 102 SLT Telescope:

    Poor quality.

    (4 of 4 customers found this review helpful)


    Awesome Telescope

    By rodeoclown

    from Austin, TX

    About Me Casual/ Recreational

    Verified Reviewer


    • Accurate
    • Easy to Use
    • Lightweight
    • Quality Lenses
    • Quality Scope


    • Shakes

    Best Uses

    • Astronomy
    • Astrophotography
    • Moon viewing
    • Planet gazing
    • Stargazing

    Comments about Celestron NexStar 102 SLT Telescope:

    This is a great scope, easy to setup and use. I was staring at Saturn the first night. I was amazed I could see the rings in some detail with the default eyepieces, so it promptly made me get online to go buy more eyepieces and filters to get closer and detailed viewing of planets and stars.

    The computerized NexStar GOTO is excellent and easy to setup for hands free remote operation and quick sky tours for the most part. I found that it was pretty accurate once setup by viewing different stars, planets and clusters and then going picking an already viewed object to see how well it aligns in the scope, seems at most just slightly off in some cases to get it in the center of the view.

    The only downside is the tripod is overall stable, the telescope is very sensitive, so at times it's hard to focus without it wobbling too much and you have to slightly focus, check, focus more, check, etc. I'd say that's the only drawback to the overall design but I'm working on solutions to try and remedy most of the focusing shakiness annoyances.

    • Was this a gift?:
    • No

    (6 of 6 customers found this review helpful)


    Really Cool GOTO grab and go Refractor

    By George the Ham Radio Man

    from Fort Smith, AR

    About Me Casual/ Recreational

    Verified Reviewer


    • 2" focuser
    • Accurate
    • Compact
    • Great afocal photography
    • Great for new to hobby
    • Looks Cool at Star Party
    • Real bargin priced scope
    • Sets up very quickly
    • Strong Construction


    • Can't think of any

    Best Uses

    • Astronomy
    • Grab and Go
    • Last minute set up
    • Travel

    Comments about Celestron NexStar 102 SLT Telescope:

    This is the perfect grab and go scope for anyone young or old. It has a 2" very steady and smooth focuser that lets you step up into real quality eyepieces that turn this nice scope into a Great Scope. A little false color, who cares! I love it! I have no problem at all with the Star Pointer Red dot finder, I have read other reviews that say it is worthless, but I can only say that they are not using it right or they have gotten ahold of a bad one. It is not a Telrad, but is completely functional, and satisfactory. I have several other Telescopes, Meade LX50 10" SCT, 3 Meade GO TO's, 60AT , 90EC, and a 125EC ETX, a 5" Celestron Newtonian, Celestron C90 MAK,and a 10" Zhumell Dobsonian. I love them all but the SLT 102mm Refractor, gets the most use, perfect for spontainious use. No weight lifting, no complicated Polar alignment, no tedious leveling or back breaking mounting the heavy scope, base and forks on the superwedge. In 5 minutes you are enjoying the heavens. When you are done, or if it starts to cloud up or rain, just release the OTA from the mount arm, unscrew the arm from the tripod and you are done! Yeah this little baby is a real keeper, I have yet to find anything I don't like about it. I am no "expert" but I have been a amateur astronomer for a long time, and this little telescope does everything I would expect of it considering price and much More! I love to use it for A focal astrophotgraphy, with my Celstron Universal Digital camera mount and Nikon p60 digital camera. For what this telescope costs you would be hard pressed to find any better for just casual use and travel grab and go. I really enjoy astronomy, but it can be hard work, and I am not getting any younger and this sweet beauty does does it all, and does it well. I can enjoy it and not be worn out, before I even start looking through it. Buy one and you will not be disapointed

    • Was this a gift?:
    • No

    (1 of 1 customers found this review helpful)


    Sweet! - Very Good Product

    By Bob Z

    from Brunswick, Ohio

    About Me Casual/ Recreational

    Verified Reviewer


    • Accurate
    • Compact
    • Easy to use
    • Quality Lenses
    • Strong Construction


      Best Uses

      • Astronomy
      • Wildlife

      Comments about Celestron NexStar 102 SLT Telescope:

      I had a reflector scope when i was a kid and have always wanted to get another one. I originally bought another brand and was not happy with the construction and the very small focusing knob and ended up with this one that doubled my initial investment but well worth it. was very good about returning the first one. This 102mm x short tube scope fits the bill. It has all the extras and easy to use but, I am still learning the "GoTo" part. Its been very cold outside so I have not been able to go out yet but looking at the moon through the window is very impressive, I can see the details of craters very clearly. Viewing land based objects are also very clear. I also bought the eyepiece/filter kit and the AC wall adapter. It will take a long time to outgrow this scope.

      • Was this a gift?:
      • No

      (2 of 2 customers found this review helpful)


      Very good product.

      By Hazzie

      from Marilla, New York

      About Me Casual/ Recreational

      Verified Buyer


      • Accurate
      • Compact
      • Quality Lenses
      • Strong Construction


        Best Uses

        • Astronomy

        Comments about Celestron NexStar 102 SLT Telescope:

        This is an easy telescope to operate after you've read the instruction book. The quick set-up isn't enough if you are a beginner like me. I am having trouble switching to the higher power lens. I lose the object that I am focusing on. I'm sure I will get better as I become more experienced.

        Displaying reviews 1-5

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        Customer Q & A

        Q1: Is the Celestron Nexstar 102 SLT is capable of being connected to a laptop computer?

        A: The Celestron NexStar 102 SLT telescope can be used with a device like the NexImage Solar System Imager in conjunction with a laptop to image the sky. However, you will not be able to control the scope via the computer.

        Q2: What is the benefit to use a laptop with the remote? Will the laptop show what the telescope is pointed at? Will I see the moon on my laptop?

        A: NexRemote allows you to point the scope with your laptop. You will not see what the scope is pointed at, however, unless you're using a digital device like the Zhumell Digital Eyepiece.

        Q3: Is there a Solar Filter available for the Celestron NexStar 102SLT?

        A: Yes, there is a solar filter available for the Celestron NexStar 102 SLT. 

        Q4: Is this scope waterproof.and at what low temp is this still accurate.

        A: The Celestron Nexstar 102 is not waterproof. It is not recommended to use this telescope in any below freezing conditions.

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