Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope

Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope

Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope

B&H # CEN4SE MFR # 11049
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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
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Price: $499.00

Instant Savings: $50.00

Offer ends: Jun 30 '17 at 8:30 pm ET

$0.00 Tax Collected Outside NY and NJ

You Pay:  $449.00

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Celestron 11049 overview

  • 1Description

Celestron's NexStar 4SE 125mm f/13 Maksutov-Cassegrain GoTo Telescope is a powerful, versatile and user-friendly catadioptric-style scope that can be used for observing everything from the Moon and planets to bright deep-sky objects like stars, galaxies and nebulae. Using Celestron's proprietary StarBright XLT multi-coating system, light transmission is increased throughout the entire optical path with anti-reflection multi-coated lenses, highly reflective multi-coated mirrors, and Crown optical glass elements. Similar to their Schmidt cousins, the Maksutov design exchanges the conventional front corrector plate with a convex meniscus lens which results in a smaller secondary mirror — limiting obstruction and increasing contrast, while eliminating the need for periodic collimation. While the focal ratio is a relatively slow f/13, the scope's optical performance, added to the mount's precision tracking system and integrated equatorial wedge allows it to be a competent astrophotography/imaging platform for the Moon and planets.

Driving the dual servo motors on the mount is the brains 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 updateable 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)/Si02 (silicon 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
  • Two-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 OTA, 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 the user 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 updateable via the Celestron website
    Database details:
  • 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 it 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 eyecups for use with or without eyeglasses
    Starpointer:
  • Projects a single red dot in line of sight
  • Unmagnified to make finding objects faster and easier
  • Used primarily for alignment process
UPC: 050234110495
In the Box
Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To 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
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Celestron 11049 specs

    Optical Design Maksutov-Cassegrain reflector
    Aperture 102 mm
    Focal Length 1325mm
    Focal Ratio f/13
    Eyepiece Barrel Diameter 1.25"
    Diagonal Integrated 90° flip
    1.25" eyepiece holders
    Finderscope Red-dot StarPointer
    GO-TO Capability Yes, NexStar controller
    Tripod Stainless steel legs
    Adjustable height
    Built-in equatorial wedge
    Weight 10 lb / 4.5 kg
    Mount Type Motorized alt-az
    Single-arm fork
    Power Source 8 x AA batteries
    Optical Tube Length 13.5" / 342.9 mm
    Weight 21.0 lb / 9.5 kg, OTA and mount
    Packaging Info
    Package Weight 38.0 lb
    Box Dimensions (LxWxH) 32.0 x 27.5 x 13.5"

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