Celestron NexStar 4SE Computerised Telescope

Compact in scale yet notably capable, the Celestron NexStar 4SE is a computerised Maksutov-Cassegrain telescope with a 102mm aperture, 1325mm focal length and f/13 focal ratio on a computerised alt-azimuth single fork arm mount. Celestron’s signature orange tube is paired with StarBright XLT optical coatings and a NexStar+ hand control, bringing a substantial object database and automated tracking into a portable format.

The 4SE suits observers ready to move into a more advanced setup without losing ease of transport. SkyAlign supports quick alignment, while the built-in wedge enables EQ North and EQ South tracking modes when required. A 25mm eyepiece is supplied for 53x magnification, and the internal flip mirror allows either straight-through or 90 viewing.

Key features

• 102mm aperture Maksutov-Cassegrain optical system
• 1325mm focal length with f/13 focal ratio
• Computerised alt-azimuth single fork arm mount
• NexStar+ hand control with 38,181 accessible objects and enhanced information on over 200 objects
• SkyAlign technology with multiple alignment procedures
• StarBright XLT optical coatings
• Built-in wedge with Alt-Az, EQ North and EQ South tracking modes
• Stainless steel tripod with accessory tray
• 2-year warranty
• Model number: 11049-CGL

Specifications

Optics

• Optical design: Maksutov-Cassegrain
• Aperture: 102mm
• Focal length: 1325mm
• Focal ratio: f/13
• Eyepiece: 25mm
• Magnification of supplied eyepiece: 53x
• 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: 212x
• Secondary mirror obstruction: 35mm (1. 38")
• Secondary mirror obstruction by diameter: 34%
• Secondary mirror obstruction by area: 12%
• Optical coatings: StarBright XLT
• Finderscope: StarPointer red dot finderscope
• Star diagonal: Internal flip mirror for straight-through or 90 viewing angle
• Optical tube: Aluminium
• Optical tube weight: 6 lbs (2. 7 kg)

Mount

• Mount type: Computerised altitude-azimuth single fork arm
• Instrument load capacity: 10 lbs (4. 54 kg)
• Tripod leg diameter: 50. 8mm (2") stainless steel
• Mount head weight: 7 lbs (3. 2 kg)
• Tripod weight: 10 lbs (4. 54 kg)
• Accessory tray: Yes
• Slew speeds: 9 slew speeds, maximum speed 3/second
• Tracking rates: Sidereal, Solar and Lunar
• Tracking modes: Alt-Az, EQ North and EQ South
• 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) or 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
• Computerised hand control: Double line, 18 character Liquid Crystal Display with 19 fibre optic backlit LED buttons

Build

• Weight: 18. 14 kg
• Skill level: Intermediate
• Part number: 11049-CGL

Sizing

• Optical tube length: 343mm (13. 5")
• Optical tube diameter: 125mm (4. 9")
• Height adjustment range (includes mount and tripod): 939. 8mm - 2397mm (37" - 55")

Support & warranty

• 2-year warranty

Rackhams Reference : MVG7C52JHC