Review of Celestron NexStar 4 SE Telescope

Editor rating

4/5 on February 7, 2017

User's rating

424 reviews


  • The optics of this telescope is excellent
  • Easily portable and compact design
  • Computerized and easy to use for go-to tracking
  • Includes planetarium software "The Sky X"


  • Short battery life with AA batteries
  • Needs practice to set up the computerized telescope


You can easily enjoy using the NexStar 4 SE because of its easy portability due to compact design and light weight of twelve pound and the excellent optics it has. You can carry it at any trip anytime as it can be ready to go within few minutes.

The Celestron NexStar 4 SE Telescope is designed to be used by aspiring, or amateur, astronomers. It belongs to the NexStar series of Telescopes manufactured by Celestron.


The mains benefits, or pros, of this telescope are:

  • The optics of this telescope is excellent
  • Easily portable and compact design
  • Computerized and easy to use for go-to tracking
  • Includes planetarium software “The Sky X”

On the other hand, the main demerits, or cons, of this telescope are:

  • Short battery life with AA batteries
  • Needs practice to set up the computerized telescope

Full technical specifications

 Optical Tube Info:
 Optical Design Maksutov-Cassegrain
 Aperture (mm) 102 mm (4.02 in)
 Focal Length 1325 mm (52 in)
 Focal Ratio 13
 Focal Length of Eyepiece 1 (mm) 25 mm (0.98 in)
 Magnification of Eyepiece 1 53 x
 Finderscope StarPointer
 Star Diagonal Internal Flip mirror for straight thru or 90 viewing angle
 Mount Info:
 Mount Type Single Fork Arm Altazimuth
 Tripod Steel with built-in wedge
 Power Requirements 8-AA batteries (not included)
 Highest Useful Magnification 241 x
 Lowest Useful Magnification 15 x
 Limiting Stellar Magnitude 12.5
 Resolution (Rayleigh) 1.37 arc seconds
 Resolution (Dawes) 1.14 arc seconds
 Light Gathering Power (Compared to human eye) 212 x
 Apparent Field of View 1 °
 Linear Field of View (@1000 yds) 53 ft (16 m)
 Secondary Mirror Obstruction 1.38 in (35 mm)
 Secondary Mirror Obstruction by Diameter 34%
 Secondary Mirror Obstruction by Area 12%
 Optical Coatings StarBright XLT
 Optical Tube Length 13.5 in (343 mm)
 Total Telescope Kit Weight 11 lbs (4.99 kg)
 Tripod Weight 10 lbs (4.54 kg) lbs (4.54 kg)
 Slew Speeds Nine slew speeds
 Tracking Rates Sidereal, Solar and Lunar
 Tracking Modes Alt-Az, EQ North & EQ South
 Alignment Procedures SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, SolarSystem Align
 Communication Ports RS-232 communication port on hand control, Aux port, Camera Control port
 Computer Hand Control Double line, 16 character Liquid Crystal Display with 19 fiber optic backlit LED buttons
 Database 38,181 accessible objects
 Warranty 2-year Telescope Warranty

Overview of NexStar 4 SE Telescope

The NexStar 4 SE is the most compact telescope in the line of computerized NexStar telescopes from Celestron. The excellent Maksutov-Cassegrain optics used in it allows you to have wonderful views of the planets and the Moon etc.

The package of NexStar 4 SE includes everything required in a computerized telescope except the batteries. It can be assembled easily with the help of a quick set-up guide with full illustrations, without needing any tool with its motorized mount, computer hand control and steel tripod.

The two eyepieces of this telescope include a 9 mm eyepiece for 139x magnification and a 25mm eyepiece for 50X magnification. In order to convert your PC into a virtual planetarium the package of this telescope includes the latest version of software, The Sky X.

For whom NexStar 4 SE is suitable?

NexStar 4 SE is suitable for the people who want to research deep space objects and planets, and like moon etc. The focal length of this telescope is ideal to reveal also the details of planets and other objects. The design of its Maksutov optics provides it a focal length of 1250mm in only a twelve inch long optical tube, which is amazingly compact. You can get clear and crispy view of the moon without any hint of fake colour. You can push its magnification up to 200 times while viewing far off planets like Saturn etc.

How does NexStar 4 SE perform?

SkyAlign technology is one of the most appealing features of the NexStar 4SE. This technology allows the telescope to align itself automatically when you direct it in the sky at three points.

People can also use its auto align function to align this telescope at any point without any additional effort. A database of 40,000 astronomical objects is among the other advanced features of this telescope that can help users in identifying the objects observed.

Other important features of this telescope include a computerised operating system and an eyepiece of 53x magnification. The sturdy and durable construction of this telescope is also praised by most of its users as most telescopes are made of plastic. It also receives good reports of functions and performances though it is not able to save the settings of date and time.

Price vs benefits & features of NexStar 4 SE offers it sometimes a very reasonable price, so make sure you will check out what’s the price today.  Although price is not so affordable for everyone, but its features and benefits can justify its higher price range.

The main features and benefits of NexStar 4 SE include:

Compact and compound structure: Celestron NexStar 4 SE is a very compact telescope which includes a combination of a 13 inches long optical tube and a 4 inches wide aperture that collectively make it a compound unit. The actual focal length of this telescope in 52 inches or 1325 mm. Maksutov-Cassegrain is the technical name of this telescope and all the features that reduce the cost of its refractors increase the quality of its reflectors. The overall performance of this telescope value the money you have spent on it with the help of mirrors and lenses used in it.

Verified computer control technology: It is a fully motorized and computerized telescope and the technology used in it has proved its reliability several times as it has been tested and updated since many years. The database of this telescope contains information of 40,000 objects so that you can focus it on any of the planets to celestial object just by pressing few buttons.

Excellent results: The wide field of view offered by Celestron 4SE allows you to get vivid images of your heavenly objects as per the nature of compound telescopes. The StarBright XLT coatings on the Celestron 4SE allow you to get the bright images of your objects. You can get maximum magnification up to 53 X due to the inclusion of 25mm Plossl eyepiece to allow you to enjoy the view all of the object in the solar system and your magnification limit has been boosted by using 12.5 mm eyepiece to view far off objects like Jupiter etc.

Easy to set: The fully instructional user’s guide allows you to set this telescope easily without using any tool. The use of SkyAlign software and NexStar computer makes it really easier control this telescope single handed.

Sample Video

Sample astrophotography with NexStar 4 SE

Customer’s reviews

Celestron NexStar 4 SE has been reviewed by 280 registered customers of Amazon. The average rating according to these reviews is 3.8 stars out of 5 of which 48% customers have rated it for 5 out of 5 stars. In general most of the users are thrilled with the features and functions of this telescope because this high quality product is available at a very affordable price. Only few customers have complained about its improper specifications and customer service. Such complaints are negligible as compared to the positive reviews of its users available on Amazon.

What kind of product guarantee offered, if any?

Celestron offers a two year warranty for any damage of defect in Nexstar 4 SE Telescope. They promise to repair or replace the defective or damaged products unless their design and functions have been modified due to mishandling or misuse. You will have to satisfy Celestron by presenting the proof of purchase to avail this warranty, this is also a good reason to buy it directly from authorized seller, such as Amazon.

Final words

If you are really interested to buy a fine instrument for astronomy then the Celestron Nexstar 4 SE Telescope is the best choice for you. It is a great telescope for novice and advances users alike due to its decent price and lots of features. It is not cheap, but it is very reasonable priced what comes to quality and features. Go ahead, buy it now, and take a look also on fascinating accessory bundle Amazon offers.

This product is winner of multiple awards and ratings, for example: Best Starter Telescope voted by users, Best Telescope For Beginners Award 2017, Best Beginner Telescope rating, Best Amateur Telescope nomination, and Good Telescope For Beginners.

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