Celestron Nexstar 4SE Computerised Telescope
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Specifications
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
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) | 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
