Celestron NexStar 4SE 102mm f13 Maksutov-Cassegrain GoTo Telescope + Free Delivery

Celestron NexStar 4SE 102mm f13 Maksutov-Cassegrain GoTo Telescope

Product Highlights

  • 102mm Maksutov-Cassegrain Telescope
  • 1325mm Focal Length, f/13 Focal Ratio
  • StarBright XLT Optical Coating System
  • NexStar+ Computer Hand Controller
  • 40,000+ Object Database with Sky Tours
  • SkyAlign Alignment Technology
  • Multiple Slew and Tracking Rates
  • Single-Fork Motorized GoTo Alt-Az Mount
  • 25mm Eyepiece, StarPointer Finder
  • Stainless Steel Tripod with EQ Wedge

Celestron Telescopes

 

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Description

Description

Celestron NexStar 4SE 102mm f13 Maksutov-Cassegrain GoTo Telescope

Driving the dual servo motors on the mount is the brain of the NexStar 4SE: the iconic NexStar+ computer hand controller. Packed with 40,000+ celestial objects, it can hold up to 100 additional user-defined destinations and is updatable via the Celestron website. It has multiple alignment procedures to get you observing fast—including the super-easy SkyAlign system. Capable of being used in the Northern or Southern Hemispheres, the NexStar has sidereal, lunar, and solar tracking speeds to accurately follow near- and deep-sky objects, plus nine slew speeds and the ability to automatically trigger a camera’s shutter release for Fastar or piggyback wide-field photography or conventional prime-focus astrophotography.

 

Performance
  • 4″ (102mm) aperture
  • f/13 focal ratio
  • 1325mm focal length
  • Maksutov-Cassegrain optical system
  • Front convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberration) across the entire field of view
  • Smaller secondary mirror versus Schmidt-Cassegrain reduces obstructions and increases contrast
  • BK7 optical glass primary mirror
  • StarBright XLT optical coatings: Multi-layer aluminum/SiO2 (quartz)/TiO2 (titanium dioxide) mirror coatings with flat reflectivity across the light spectrum for both astrophotography/astroimaging and visual observation
  • Multi-layer MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide) anti-reflective lens coatings
  • High-transmission water white glass corrector lens with 97.4% light transmission
  • Resolution: Rayleigh: 1.36 arcsec / Dawes: 1.14 arcsec
  • Secondary mirror obstruction: 1.25″, 34.4% by diameter, 11% by area
  • Internal 90° flip mirror: With the mirror flipped up, the 90° angle puts head in a comfortable viewing position when scope is pointed at or near the zenith; lay the mirror down to direct light to the visual back for astrophotography/imaging

 

NexStar+ Computer Controller
  • 2-line, 16-character LCD display
  • 19 fiber optic backlit red LED buttons
  • Database of over 40,000 celestial objects plus 100 user defined
  • Automatically slew to planets, stars, constellations, and a variety of catalogs
  • Camera control: For piggyback wide-field or conventional astrophotography through the optical tube assembly, the controller can automatically trigger the shutter release to capture the image
  • Anti-backlash compensation programs out play between gears for more precise tracking
  • Tour Mode: Shows a selection of the most popular objects for the time and date you are observing
  • Constellation Tour: Allows you to take a tour of all the best objects within a particular constellation
  • Alignment procedures: SkyAlign, Auto 2-Star, 1-Star, 2-Star, and Solar System
  • SkyAlign alignment: Takes minutes, with minimal effort or experience—point the telescope at three bright objects in the sky, and the telescope does the rest
  • Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, 0.5°/sec, 2x, 4x, 8x, 16x, and 32x
  • Sidereal, Solar, and Lunar tracking rates for observing the fast-moving Moon, to slower-moving deep-space subjects
  • Tracking modes: Alt-Az (default, for general GoTo use), EQ North (use for long-exposure astrophotography in Northern Hemisphere with EQ wedge engaged), EQ South (use for long-exposure astrophotography in Southern Hemisphere with EQ wedge engaged), Off (no tracking when using as a terrestrial spotting scope)
  • RS-232 communication port allows for computer control
  • Flash updatable via the Celestron website

 

Database Details:

  • Solar system objects including the Sun, Moon, and planets
  • Named objects
  • Stars: Asterims, variable stars, double stars, named stars
  • Caldwell catalog
  • Messier catalog
  • NGC catalog
  • SAO catalog
  • Constellations

Mount & Tripod

Mount:

  • Single-fork alt-az
  • Dual-axis servo motors allow for precise tracking with virtually no vibration
  • Motor resolution: 0.26 arcsec
  • Optical encoders track mount movement to improve tracking and GoTo accuracy while allowing the mount to maintain alignment when moved manually
  • Communication ports: Autoguider port, Aux port, hand controller
  • Runs on eight user-supplied AA batteries or optional 12 VDC power supply

Tripod:

  • Stainless steel legs
  • Adjustable height accommodates a variety of observation positions or users
  • Built-in equatorial wedge enables more precise tracking accuracy during long-exposure astrophotography
  • Tray holds accessories such as eyepieces and filters and adds stability and vibration reduction
  • Weight: 10 pounds

 

Included Accessories
Eyepiece:

  • 1.25″ diameter barrel
  • 25mm focal length produces 53x magnification
  • Anti-reflection multi-coated glass improves color rendition and contrast
  • Threaded barrel accepts most 1.25″ astronomical filters
  • Fold-down rubber eyecup for use with or without eyeglasses

StarPointer Finder:

  • Projects a single red dot in line of sight
  • Unmagnified to make finding objects faster and easier
  • Used primarily for alignment process
Additional information

Additional information

Brand

Celestron

Specifications

Specifications

Celestron 4SE Specs

Optical Tube Assembly
Optical Design Maksutov Reflector
Aperture 102 mm / 4″
Focal Length 1325 mm
Focal Ratio f/13
Eyepiece Barrel Diameter 1.25″
Diagonal Yes, 90° Star
Finderscope Yes
Optical Tube Dimensions Length: 13.5″ / 342.9 mm
Mount
Type Motorized; Alt-Azimuth Single Fork
GoTo Capability Yes, NexStar+ controller
Tripod
Material of Tripod Stainless Steel
General
Batteries 8 x AA
Weight 10.0 lb / 4.5 kg (Tripod)
21.0 lb / 9.5 kg (Fully Assembled)
Packaging Info
Package Weight 38.0 lb
Box Dimensions (LxWxH) 32.0 x 27.5 x 13.5″
In The Box

In The Box

  • Celestron NexStar 4SE 102mm f/13 Maksutov-Cassegrain GoTo Telescope

 

  • E-Lux 25.0mm 1.25″ Eyepiece
  • StarPointer Finderscope
  • NexRemote Control Software CD
  • The Sky CD-ROM Software for Windows
  • RS-232 to Serial Port Cable – for GPS 16 Accessory
  • NexStar+ Hand Controller
  • Tripod with Accessory Tray

 

 

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