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

BH #CEN4SETK1 (B&H Kit)
Celestron NexStar 4SE 102mm f/13 Maksutov-Cassegrain GoTo Telescope WiFi Kit
Key Features
  • 102mm Maksutov-Cassegrain Telescope
  • 1325mm Focal Length, f/13 Focal Ratio
  • StarBright XLT Optical Coating System
  • SkyPortal WiFi Module
B&H put together the NexStar 4SE 102mm f/13 Maksutov-Cassegrain GoTo Telescope WiFi Kit to allow you to directly control the mount via your smartphone or tablet running a free app for Android and iOS.
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Celestron 4SE Overview

  • 1Description
  • 2Celestron NexStar 4SE 102mm f/13 Maksutov-Cassegrain GoTo Telescope
  • 3Celestron SkyPortal WiFi Module
  • 4Celestron Moon Filter (1.25") - Reduces Excessive Light Reflected From the Moon for Better Viewing

B&H put together the NexStar 4SE 102mm f/13 Maksutov-Cassegrain GoTo Telescope WiFi Kit to allow you to directly control the mount via your smartphone or tablet running a free app for Android and iOS.

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

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 multicoating system, light transmission is increased throughout the entire optical path with anti-reflection multicoated lenses, highly reflective multicoated 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 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: Multilayer aluminum/SiO2 (quartz)/TiO2 (titanium dioxide) mirror coatings with flat reflectivity across the light spectrum for both astrophotography/astroimaging and visual observation
  • Multilayer 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 multicoated 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

 

UPC: 050234110495

Celestron SkyPortal WiFi Module

Transform your smartphone or tablet into a wireless controller for your computerized telescope with Celestron's SkyPortal WiFi Module. It plugs into the Hand Control or AUX port and begins to generate it's own WiFi signal to directly connect to your mobile device without the need for a router. Since it uses the telescope's power there are no batteries, plugs, or cables required.

The SkyPortal module works in conjunction with the free SkyPortal mobile app available for iOS and Android devices. The app features a database of over 100,000 objects with astroimages and audio descriptions of hundreds of them including the history, mythology, and key features of them. It can assist with the telescope alignment and if you hold the screen up to sky, it will identify the objects based on your location, date, and time. If you don't know what you want to look at, the SkyPortal app will take you on a guided tour.

Use and Handling

  • Plugs into the telescope's Hand Control or AUX port
  • Emits its own WiFi signal to directly connect to smartphones and tablets
  • Lets you use your device as a wireless hand controller
  • Powered by telescope: no batteries, cables, or plugs required

SkyPortal Planetarium App

  • Free mobile app for iOS and Android smartphones and tablets
  • Tap any celestial object you see in the sky to identify it, tap again to slews to that object
  • Directly interfaces with SkyQ Link II WiFi module
  • Assists in alignment procedures, except with SkyProdigy models
  • Over 100,000 celestial objects from the Moon and planets to galaxies and nebulae
  • Provides guided tours of available objects based on location, date, and time
  • Works as a stand-alone planetarium app
  • Astroimages and audio descriptions for the most popular objects
  • Explains the history, mythology, and key features of the most popular celestial objects
  • Hold your screen up to the sky to identify objects in Compass Mode

Compatibility

  • Astro Fi
  • NexStar SE Series
  • NexStar SLT
  • NexStar Evolution
  • CPC, CPC DX
  • NexStar GT, with required #93919 splitter - sold separately
  • CGE, CGE Pro
  • Advanced VX
  • CG-5, with required #93923 splitter - sold separately
  • CGEM, CGEM DX
  • LCM, with required #93919 splitter - sold separately
  • CGX
  • CGX-L
  • CGEM II
UPC: 050234939737

Celestron Moon Filter (1.25") - Reduces Excessive Light Reflected From the Moon for Better Viewing

Celestron's Moon Filters are economical eyepiece filters for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface.
The clear aperture is 21mm for the 1.25" filter. Transmission is about 18%.

UPC: 050234941198

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

Optical Tube Assembly
Optical DesignMaksutov Cassegrain
Aperture102 mm / 4"
Focal Length1325 mm
Focal Ratiof/13
FocuserInternal
Eyepiece Barrel Diameter1.25"
Diagonal90° Star
FinderscopeYes
Optical Tube DimensionsLength: 13.5" / 342.9 mm
Mount
TypeMotorized; Alt-Azimuth Single Fork
GoTo CapabilityYes, NexStar+ controller
Tripod
TypeAdjustable, 2-Section
Material of TripodStainless Steel
General
Batteries8 x AA
GPSNo
Wi-FiNo
Weight10 lb / 4.5 kg (Tripod)
21 lb / 9.5 kg (Fully Assembled)
Packaging Info
Package Weight38 lb
Box Dimensions (LxWxH)32 x 27.5 x 13.5"

Celestron SkyPortal WiFi Module Specs

Packaging Info
Package Weight0.125 lb
Box Dimensions (LxWxH)3.65 x 2.5 x 2.3"

Celestron Moon Filter (1.25") - Reduces Excessive Light Reflected From the Moon for Better Viewing Specs

Packaging Info
Package Weight0.03 lb
Box Dimensions (LxWxH)2.9 x 1.5 x 1.4"

Celestron 4SE Reviews

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YOUR RECENTLY VIEWED ITEMS

question

Does this model track the moon? I want to be able to take HDR photos and Time Lapse of the moon.
Asked by: Antonio
This telescope (after doing a setup procedure) will target the moon and track it for about 30 seconds.
Answered by: Thomas W.
Date published: 2018-08-27

question

What is the aperture of this model?
Asked by: Anonymous
The aperture for the model you are asking about is 4 inches. Whatever the number is about NexStar is the aperture.
Answered by: Derek S.
Date published: 2018-08-27

question

Does B&H carry a solar filter for the Celestron 4SE?
Asked by: Anonymous
MrStarGuy Adjustable Objective White Light Solar Filter (86-117mm OD) B&H # STSGFT039 MFR # SGFT039
Answered by: Anonymous
Date published: 2018-10-24

question

Can the 4SE be aligned during the day? I'd like to track the sun (with a proper filter, of course).
Asked by: Stuart D.
Yes it can. It has a solar alignment feature. You do need to enable it in setup
Answered by: Earl A.
Date published: 2018-08-27

I got this 4se telescope about a week ago and I ...

I got this 4se telescope about a week ago and I am able to see Vega, Jupiter, the moon, but I am not happy with the quality of the image. No matter how careful I am focusing, they look out of focus. So I wonder if this is a limitation of the product or maybe I just got a defective one. Here is a link to some shots. What I see with the naked eye looks the same. https://photos.app.goo.gl/TxgsGArnbfKtMjJa7 Can anyone share some good pictures taken with a 4se? That would demonstrate its capabilities? Your help sorting this out would be greatly appreciated.
Asked by: george
Hello George, not knowing your experience level or the seeing conditions at your obseving site I would suggest attending a star party and getting the opinions of others. I would think it most likely that in 1 short week you have simply not gotten a nice enough night to fully enjoy the crispy views that a small Maksutov-Cassegrain can give.
Answered by: Anonymous
Date published: 2019-02-04

question

I have the NexStar 4 se telescope now how do I take photos of the Moon and stars with a Nikon camera through that small eyepiece ? I have a T ring adapter model # 93625 for a Nikon camera it fits in the top eyepiece but how do I use my 25mm plossl and other focal length eyepieces to take close up photos of the moon ?
Asked by: Anonymous
So you would not be able to use the T-Adapter with eyepieces. However we do sell the Celestron SLR Camera Adapter with Integral 2x Barlow Lens. Which would give you some more magnification if you needed. Then you can get the T-Ring that you need to attach your Nikon DSLR. You can do the Vello Lens Mount Adapter - T Mount Lens to Nikon F Mount Camera, which will work with the adapter you have now. As well as the 2X Barlow Lens Camera Adapter. Website link for Barlow: http://bhpho.to/1OmELU1Website link for T-Ring: http://bhpho.to/1d8lKOS
Answered by: Alex S.
Date published: 2018-08-27
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