Celestron NEXSTAR 4SE Computerized Telescope 
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’ll 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’re 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 (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.