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The Celestron NexStar 4SE 4-inch Maksutov-Cassegrain telescope combines compact optical precision with a fully computerized GoTo mount. Ideal for beginners and casual astronomers, this portable GoTo telescope delivers sharp, high-contrast views of the Moon, planets, and bright deep-sky objects.
4-Inch Maksutov-Cassegrain Optics
The NexStar 4SE features a 102mm Maksutov-Cassegrain optical design, known for excellent contrast and sharp planetary detail. Its long focal length makes it especially well-suited for:
Saturn’s rings
Jupiter’s cloud bands
Lunar craters and surface features
Bright deep-sky objects like the Orion Nebula
The Maksutov design provides superior optical performance in a compact, travel-friendly tube.
Fully Automated GoTo Mount (40,000+ Objects)
The computerized GoTo system automatically locates and tracks over 40,000 celestial objects using the NexStar+ hand controller. With SkyAlign technology, setup is quick and simple—even for beginners.
Optional accessories like StarSense AutoAlign and SkySync GPS allow the NexStar 4SE to grow with your experience.
Portable & Easy to Transport
Celestron’s patented single fork arm mount ensures stability while remaining lightweight and compact. The telescope breaks down into manageable components, perfect for backyard use or travel to dark-sky sites.
Key Features
4-inch (102mm) Maksutov-Cassegrain optics
Fully computerized GoTo mount
40,000+ object database
SkyAlign quick setup
Compact and travel-friendly design
Ideal beginner GoTo telescope
The Celestron NexStar 4SE GoTo Maksutov telescope is a powerful yet compact solution for anyone looking to explore the night sky with automatic tracking and sharp planetary performance.
Technical Specifications
OPTICAL TUBE INFO:
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
