Celestron NexStar 4SE Computerised Telescope

Celestron NexStar 4SE Computerised Telescope

Celestron NexStar 4SE Computerised Telescope

The Celestron NexStar 4SE Computerised Telescope is the perfect, state of the art, telescope for all your astrophotography and comes with a 2 year warranty

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Product details

Bar Code:  050234110495
Part Number:  11049-CGL
Brand:  Celestron
Skill Level  Intermediate
Aperture  102 mm
Mount Type  Computerised Alt-Azimuth
Focal Length  1325 mm
Optical Design  Maksutov-Cassegrain
Warranty  2 Years


The Celestron NexStar 4SE Computerised Telescope has Celestron’s signature orange-tube and combines advanced features and excellent optics in one easy-to-use system. It is the perfect choice for your first serious telescope, offering striking views at an economical price.

The NexStar 4SE's 4-inch primary mirror packs enough light-gathering ability to observe the best that the solar system has to offer: Saturn’s rings, the cloud bands on Jupiter, and geographic features on the surface of the Moon. When it comes to deep sky objects, take your 4SE to a dark-sky site, and you will see hundreds of pinpoint stars in the Hercules Globular Cluster, the spiral arms of the Whirlpool Galaxy, and more.

We know the best telescope is the one you will use most often. That is why Celestron's engineers created NexStar SE's unique, patented single fork arm mount. It is perfectly portable and makes setup quick and easy. What is more, the NexStar SE breaks down into several lightweight and compact pieces, making it easy to transport, even in small vehicles. You will have no problem getting the NexStar SE to your favourite observing site, or setting it up quickly in your backyard.

Of course, it is what is inside the mount that really counts. Sturdy construction from high-quality components give NexStar SE the pointing and tracking accuracy needed to observe and follow your favourite targets with push-button ease. Use the included NexStar+ hand control to locate over 40,000 celestial objects, or take a Sky Tour and let your telescope show you the best objects currently visible.

Aligning your telescope is simple and painless thanks to SkyAlign. This process makes alignment easy: just centre three bright objects in your eyepiece and press ALIGN. For even easier alignment, attach our StarSense AutoAlign and your NexStar SE aligns itself.

The NexStar SE is compatible with all the high-tech accessories advanced users love. Provide GPS coordinates to your telescope with SkySync, or add automatic alignment functionality with StarSense AutoAlign.

Its built-in wedge allows you to track long exposures. From your first observing session and for years to come, the NexStar SE is your trusted companion.

- Celestron's iconic orange tube design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike.
- 4 inch aperture provides excellent light-gathering ability at an affordable price. You will get impressive views of the Moon and planets, along with deep sky objects like the Orion Nebula, while retaining a compact form factor.
- Fully automated GoTo mount with database of 40,000+ celestial objects automatically locates and tracks objects for you.
- SkyAlign technology gets your telescope aligned and ready to observe in minutes. Even if you are unfamiliar with the night sky, you can easily align your telescope on any three bright objects.
- Unique single fork arm design and sturdy steel tripod all break down into separate components for easy transport and quick assembly.

Optical Design Maksutov-Cassegrain
Aperture 102mm
Focal Length 1325mm
Focal Ratio f/13
Focal Length of Eyepiece 1 25mm
Magnification of Eyepiece 1 53x
Finderscope StarPointer red dot finderscope
Star Diagonal Internal Flip mirror for straight thru or 90 deg viewing angle
Optical Tube Aluminium
Highest Useful Magnification 241x
Lowest Useful Magnification 15x
Limiting Stellar Magnitude 12.5
Resolution (Rayleigh) 1.37 arc seconds
Resolution (Dawes) 1.14 arc seconds
Light Gathering Power (Compared to human eye) 212x
Secondary Mirror Obstruction 35mm (.38")
Secondary Mirror Obstruction by Diameter 34%
Secondary Mirror Obstruction by Area 12%
Optical Coatings StarBright XLT
Optical Tube Length 343mm (13.5")
Optical Tube Diameter 125mm (4.9")
Optical Tube Weight 6 lbs (2.7 kg)
Dovetail CG-5 Dovetail bar
Mount Info:
Mount Type Computerized Altitude-Azimuth Single Fork Arm
Instrument load capacity 10 lbs (4.54 kg)
Height adjustment range (includes mount and tripod) 939.8mm - 2397mm (37" - 55")
Tripod leg diameter 50.8mm (2") Stainless Steel
Mount Head Weight 7 lbs (3.2 kg)
Accessory Tray Yes
Tripod Weight 10 lbs (4.54 kg)
Slew Speeds 9 slew speeds - max speed 3°/second
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes Alt-Az, EQ North & EQ South
Dovetail Compatibility CG-5 dovetail
Number of Auxiliary ports 1x Aux port
Autoguide port No
USB port Yes, Hand Control input
Power Requirements 8-AA batteries (not included) | 12 VDC-750 mA (Tip positive)
Motor Drive DC servo motors
Alignment Procedures SkyAlign, 1-Star Align, 2-Star Align, Auto 2-Star Align, Solar System Align, EQ North / EQ South Alignment (EQ align requires an equatorial wedge)
Periodic Error Correction No
Computerized Hand Control Double line, 18 character Liquid Crystal Display with 19 fiber optic backlit LED buttons
NexStar+ Database 38,181 accessible objects. Enhanced information on over 200 objects.
Software Celestron's Starry Night Special Edition Software, SkyPortal App
Total Kit Weight 23 lbs (5 kg)
Included Items: NexStar SE OTA, Single Fork Arm Mount, Tripod, Accessory Tray, Star Pointer Finderscope, Built-In Wedge, NexStar+ Hand Control, 25mm eyepiece

Average Rating (6 Reviews):  
Write a Review and share your opinions!

Good but Starrry Night not helpful
25 January 2022  | 

Starry Night difficult to access, but telescope is excellent.

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0 of 2 people found this review helpful.

Celestron Nexstar 4SE go-to Telescope.
19 February 2021  | 

Only very recently been able to set up this scope due to Weather conditions but so far I am overall pleased with it. The Go-to mount works very well and is impressively accurate if set up correctly. The Tripod is very stable and secure. Deep-sky objects are a little disappointing but to be fair I am still experimenting with various lenses so the jury is still out. Lunar observing is impressive with the bundled 25mm lens. I used a fairly low budget 2 x Barlow lens to view the Orion Nebula but having only really observed with 20 x 80 binoculars it is difficult to make a real comparison.
It would be interesting to re-visit this review in a few weeks when I have been able to really test it which to be fair, up to now I have not.
Overall I am pleased but I do have the sneaking feeling I may upgrade at some stage in the future - with hindsight I wish I had purchased the 5" version as the extra aperture would be hugely beneficial to what is essentially a very good chassis, mount and Tripod.

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3 of 3 people found this review helpful.

Good product
14 February 2021  | 

ALthough the skies haven't been conducive to using my purchase much since buying it I can confirm that this is a well built quality product. The tripod is substantial and sturdy and there's no chance of the legs flexing as can happen with cheaper tripods I've seen and read reviews about. It's too early to comment on the optics as I haven't had enough to go on at present.
The only downside I have found with this scope is the fact that you can only slew it using the motors and I would have preferred to be able to do this manually at times.

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This review has not been appraised.

Very good telescope
31 May 2020  | 

Very compact and you can use it also as a tabletop telescope.

Bright and sharp images. As it is a Maksutov high focal ratio telescope it works best for high magnification planetary and moon observations. Less suitable for low magnification views of bright stars as cassegraine types sometimes show a bit of ghosting with bright stars like Vega. However, I only noticed it with the included 25mm Plossl and not when using a Celestron Omni 15mm eyepiece.

Works with 8 AA Eneloop Pro rechargeable batteries. So, you do not need to use alkaline batteries.

Overall, I am pleased with my first impression.

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1 of 1 people found this review helpful.

24 July 2015  | 



This review has not been appraised.

Good starting Telescope
04 January 2013  | 

Happy with the purchase. Reckon this is a fantastic little telescope for beginners. Very small and quick to assemble, and get you started on astronomy.
Can see the moon in full and catch a glimpse of Jupiter with its moons as dots with the shipped 25 mm eye piece. Recommend to complement it with a 6 mm eye piece, allows you to distinguish individual crater on the moon. Also good for beginner astro-photography. It has a wedged mount unlike most other Nexstar SE telescopes excepts the 5SE, so it can be polar aligned. Also bought an universal T-Adaptor with a Nikon T-Ring, attached a Nikon DSLR and starting shooting on the first night. However, should have bought the T-Adaptor-C90 (93635-A), as this allows the Nikon DSLR to connect to the rear of the tube, instead of the eye-piece.


This review has not been appraised.

Boxed Dimensions (LxWxH cm): 83.82 / 68.58 / 33.02 / - Weight (g) Boxed/Un-Boxed: 17902 / 10003
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