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Orange tube Maksutov-Cassegrain telescope on computerized alt-azimuth mount with StarPointer finderscope

Celestron

Celestron 11049 NexStar 4SE 102 mm Maksutov-Cassegrain optic

SKU CH-DSYX-C287B MPN 11049

A 102 mm Maksutov-Cassegrain telescope with 1325 mm focal length, StarBright XLT coatings, computerized GoTo and SkyAlign alignment

  • Part11049
  • TypeTelescopes
  • SpecificationsOptical Design: Maksutov-Cassegrain Aperture (mm): 102 mm (4
  • ColorMulti
  • Field of View53 ft (16 m) (@1000 yds)
  • Objective Lens102
  • Compact 102 mm aperture gathers light for detailed planetary views
  • Maksutov-Cassegrain optical design delivers long 1325 mm focal length in short tube
  • StarBright XLT coatings maximise light transmission for brighter, higher-contrast images
  • StarPointer finderscope speeds alignment and object location
  • Computerised GoTo mount with SkyAlign finds thousands of celestial targets automatically

Ideal for visual astronomy beginners

The Celestron NexStar 4SE is a 102 mm Maksutov-Cassegrain telescope mounted on a fully computerized single-arm fork. It arrives pre-assembled so users can start observing immediately. The integrated StarPointer finderscope simplifies initial alignment and object location. This system suits anyone wanting a portable, goto-capable instrument without a complex setup process.

Upgrade from manual or smaller scopes

Moving from a non-computerized refractor or a tabletop Dobsonian adds automated tracking and a database of thousands of celestial objects. The jump is worth it when you want the mount to find and follow planets or deep-sky targets while you observe. SkyAlign software aligns the telescope using any three bright objects, removing the need to know star names or coordinates.

102 mm aperture with f/13 focal ratio

The 1325 mm focal length and f/13 ratio deliver 53× magnification with the supplied 25 mm eyepiece and a maximum useful magnification of 241×. This combination excels at high-contrast planetary and lunar detail. Light-gathering capacity limits performance on faint galaxies and nebulae; the narrow 53 ft field of view at 1000 yds makes large extended objects difficult to frame.

Highlights

  • Compact 102 mm aperture gathers light for detailed planetary views
  • Maksutov-Cassegrain optical design delivers long 1325 mm focal length in short tube
  • StarBright XLT coatings maximise light transmission for brighter, higher-contrast images
  • StarPointer finderscope speeds alignment and object location
  • Computerised GoTo mount with SkyAlign finds thousands of celestial targets automatically

Specifications

BrandCELESTRON
ModelNexStar 4SE Computerized
Part11049
TypeTelescopes
SpecificationsOptical Design: Maksutov-Cassegrain
Aperture (mm): 102 mm (4.02")
Focal Length: 1325 mm (52")
Focal Ratio: 13
Focal Length of Eyepiece 1 (mm): 25 mm (0.98")
Magnification of Eyepiece 1: 53 x
Finderscope: StarPointer
Star Diagonal:"ternal Flip mirror for straight thru or 90 viewing angle
Mount Type: Single Fork Arm Altazimuth
Tripod: Steel with built-in wedge
Power Requirements: 8-AA batteries (not"cluded)
Highest Useful Magnification: 241 x
Lowest Useful Magnification: 15 x
Limiting Stellar Magnitude: 12.5
Resolution (Rayleigh): 1.37 arc seconds
Resolution (Dawes): 1.14 arc seconds
L
ColorMulti
Field of View53 ft (16 m) (@1000 yds)
Objective Lens102
Total Magnification241
FeaturesGeneral
4" Maksutov-Cassegrain telescope
SE combines the classic heritage of the original orange tube telescopes with the latest state-of-the-art features
StarBright XLT high transmission coatings come standard
StarPointer finderscope to help with alignment and accurately locating objects
Internal flip mirror for convenient viewing straight through (with optional diagonal) or at 90 degrees
Quick release fork arm mount, optical tube and accessory tray for no-tool setup
Sturdy computerized Altazimuth mount
Internal battery compartment to prevent cord wrap during use
Ultra sturdy steel
Shipping weight18.46 kg
Package size826 × 686 × 343 mm

Questions about this item

What tripod or mount does the 102 mm optical tube attach to?

The 102 mm Maksutov-Cassegrain tube is pre-assembled on the single-arm fork mount that ships with the NexStar 4SE; no separate tripod head is required.

How do I run the initial SkyAlign procedure, and what step do users often miss?

Power on the hand control, enter date, time and site, then centre three bright stars; the step often missed is confirming each star with ENTER after centring.

Which items will need replacement after extended use?

The 25 mm eyepiece and StarPointer finderscope are the main accessories that may wear or be lost; the optical tube coatings are permanent.

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