Description
Highlights:
4" Maksutov-Cassegrain telescope
SE combines the classic heritage of the original orange tube telescopes with the latest state-of-the-art features
StarBright XLT high transmission coatings come standard
StarPointer finderscope to help with alignment and accurately locating objects
Internal flip mirror for convenient viewing at 90 degrees or imaging straight through (with optional adapter).
Quick release fork arm mount, optical tube and accessory tray for no-tool setup
Sturdy computerized Altazimuth mount
Internal battery compartment to prevent cord wrap during use
Ultra sturdy steel tripod features built-in wedge which allows 4 SE to be used for astrophotography
“TheSkyX – First Light Edition” astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images
Celestron’s iconic “orange tube” design is updated with the latest technology to deliver an exceptional stargazing experience for beginners and experienced observers alike. The NexStar 4SE combines advanced features, excellent optics, and an easy-to-use system in one compact package — making it an ideal first serious telescope at an economical price.
4-Inch Aperture with Impressive Light-Gathering Power
The 4-inch aperture provides excellent light-gathering ability at an affordable price, all while retaining a compact form factor.
With the NexStar 4SE, you can enjoy impressive views of:
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The Moon’s surface features
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Saturn’s rings
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Jupiter’s cloud bands
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Deep-sky objects like the Orion Nebula
Take the 4SE to a dark-sky site and you’ll also see:
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Hundreds of pinpoint stars in the Hercules Globular Cluster
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The spiral arms of the Whirlpool Galaxy
Fully Automated GoTo Mount with 40,000+ Object Database
The NexStar 4SE features a fully automated GoTo mount with a database of more than 40,000 celestial objects. The system automatically locates and tracks objects for you, making observing simple and intuitive.
Using the included NexStar+ hand control, you can:
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Locate over 40,000 celestial objects
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Take a Sky Tour and let the telescope show you the best objects currently visible
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Track your favourite targets with push-button ease
High-quality components and sturdy construction provide the pointing and tracking accuracy needed for reliable performance.
SkyAlign Technology for Fast, Easy Setup
Thanks to SkyAlign technology, alignment is quick and painless — even if you’re unfamiliar with the night sky.
Alignment is as easy as 1-2-3:
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Center three bright objects in your eyepiece
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Press ALIGN
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Begin observing
For even easier alignment, you can attach StarSense AutoAlign and your NexStar SE aligns itself.
Revolutionary Single Fork Arm Mount
Celestron’s engineers designed the NexStar SE’s unique, patented single fork arm mount for maximum portability and quick setup.
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Breaks down into lightweight, compact components
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Easy to transport, even in small vehicles
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Quick assembly in your backyard or at your favourite observing site
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Sturdy steel tripod for stable support
The design ensures the telescope is one you’ll use often — portable, practical, and simple to set up.
A Legacy Reimagined for the 21st Century
In the 1970s, Celestron’s Schmidt-Cassegrain telescopes helped bring astronomy to the masses. Founder Tom Johnson developed Celestron’s proprietary method of producing Schmidt corrector plates, delivering superior views with maximum portability.
His vision was to create high-quality optical instruments at an affordable price — inspiring generations of amateur astronomers. Four decades later, the NexStar SE builds upon that legacy with cutting-edge features while staying true to that original intent.
Advanced Features That Grow with You
The NexStar SE is compatible with a range of high-tech accessories for expanding your observing capabilities.
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Add GPS functionality with SkySync
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Add automatic alignment with StarSense AutoAlign
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Use the built-in wedge to track long exposures
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Pair with NexImage cameras for imaging the Moon and planets
From your first observing session and for years to come, the NexStar 4SE is designed to be a trusted companion in exploring the night sky.
Specifications:
Optical Design: Maksutov-Cassegrain
Aperture: 102mm (4.02")
Focal Length: 1325mm (52")
Focal Ratio: f/13
Focal Length of Eyepiece 1: 25mm (0.98")
Magnification of Eyepiece 1: 53x
Finderscope: StarPointer™ red dot finderscope
Star Diagonal: Internal Flip mirror for straight thru or 90° viewing angle
Optical Tube: Aluminum
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 (0.38")
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: 38.1mm (1.5") 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 and EQ South
GPS: N/A
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) and 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 Starry Night Special Edition Software and SkyPortal App
Total Kit Weight: 23 lbs (10.4 kg)
Included Items: Optical tube
Single Fork Arm Mount and Tripod
Accessory Tray
Star Pointer Finderscope
Built-In Wedge
NexStar+ Hand Control
25mm eyepiece
Solar Warning
Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.
Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.