Celestron's trademark orange tube telescope combines advanced features and excellent optics into one easy-to-use system, the NexStar 4SE. The perfect choice as a first binocular for the serious hobbyist, offering excellent views at an economical price.

Our founder's vision, remastered for the 21st century

In the 1970s, Celestron's Schmidt-Cassegain telescopes brought the hobby of astronomy within everyone's reach and established Celestron's leadership as the world's best telescope maker. Our founder Tom Johnson developed Celestron's proprietary technology for producing Schmidt correction plates and achieving improved image quality and easy portability. Johnson was a firm believer in producing high quality optical instruments and inspired a whole generation of amateur astronomers.
Four decades later, we have improved upon the original by adding features made possible by the latest technology, but without forgetting the purpose of our founder.
View the most impressive sights in the Universe
The four-inch main mirror of the 4SE has enough light-gathering ability to clearly see the best objects in our solar system: Saturn's rings, Jupiter's cloud spirals and astronomical objects. In deep sky objects, you can make out the constellation Hercules and the spiral arms of galaxies, and more.
Revolutionary one-arm tripod solution
We know that the best telescope is the one that collects the least dust in your closet. That's why Celestron engineers designed the NexStar SE's new, patented single arm stand. The easy-to-carry stand makes setting up quick and easy. In addition, NexStar SE conveniently disassembles into light and compact parts, so transport even in small vehicles is easy. Access to your favorite observation spot is easy and setting up, for example, in your own backyard is quick.
The content of the stand is what really makes this package great. The sturdy construction of high-quality parts gives NexStar SE the pointing and tracking accuracy that makes tracking your favorite celestial bodies easy with the push of a button. Using the included NexStar+ remote control to point the telescope at over 40,000 celestial objects, and with the Sky Tour function, the telescope will showcase the best of the visible objects.
Aligning the telescope is also simple and painless, thanks to the SkyAlign function. It makes alignment and calibration easy: point the telescope at just three bright objects in the sky and press the 'ALIGN' button. Alignment is even easier using the StarSense AutoAlign accessory, with which the NexStar SE knows how to orient itself!
The advanced functions keep pace with the developing hobbyist
NexStar SE is compatible with all the advanced accessories advanced users love. SkySync provides GPS positioning for your telescope, and StarSense AutoAlign provides automatic alignment for easy deployment.
For star photography enthusiasts, the 4SE is an excellent choice. Its built-in angle wedge lets you track your subject for long exposures. By removing the auxiliary mirror, it is possible to attach a DSLR or astronomical CCD camera f/2 for wide-angle shots with a Fastar/Hyperstar lens. Or, if you want to photograph the moon and planets in our solar system, connecting NexStar 4SE with Skyris cameras is the best solution. From the first viewing to years of hobby, NexStar SE is a reliable partner.
Celestron's iconic "Orange Tube" has been updated with the latest functions to provide the best stargazing experience for both beginners and experienced amateur astronomers. The four-inch (102mm) aperture offers excellent light-gathering ability at an affordable price, and with it you can get impressive pictures of both the moon and the planets, not forgetting deep-sky objects such as the Orion Nebula, while maintaining the tube's compact size.
A fully automatic GoTo tripod with a database of 40,000 sky objects finds and tracks the selected object automatically. SkyAlign technology automatically aligns the telescope and speeds up deployment. Even without knowing the night sky beforehand, orientation is easy - by finding three bright objects, the tripod is easily calibrated.
The unique single-arm design and sturdy tripod break down into separate parts for easy portability and quick assembly.

Technical information:

• Optical structure: Maksutov-Cassegrain
• Aperture (mm): 102mm (4.02in)
• Focal length: 1325mm (52in)
• Combustion gap factor: 13
• Eyepiece 1 focal length (mm): 25mm (0.98in)
• Eyepiece 1 magnification: 53x
• I'm looking for: StarPointer
• Corner mirror: Internal swivel mirror for either direct or 90 degree viewing angle
• Tripod type: Single-arm Altazimuth
• Tripod: Steel, with built-in angle wedge
• Power requirement: 8 AA size batteries (not included)
• Highest usable magnification: 241x
• Minimum usable magnification: 15x
• Limiting stellar magnitude: 12.5
• Resolution (Rayleigh): 1.37 arc seconds
• Resolution (Dawes): 1.14 arc seconds
• Light gathering power (compared to the human eye): 212x
• Viewing angle: 1°
• Linear viewing angle (@1000 yds): 16m
• Auxiliary mirror coverage area: 1.38in (35mm)
• Auxiliary mirror coverage area in relation to diameter: 34%
• Auxiliary mirror coverage area in relation to lens area: 12%
• Optical coating: StarBright XLT
• Tube length: 13.5in (343mm)
• Total weight of the telescope system: 4.99kg
• Tripod weight: 4.54kg
• Rotation speed settings: Nine speeds
• Tracking types: Sidereal, Solar and Lunar
• Tracking modes: Alt-Az, EQ North & EQ South
• Alignment modes: SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, SolarSystem Align
• Communication ports: RS-232 communication port on hand control, Aux port, Camera Control port
• Computerized remote control: Two-line 16-character LCD display with 19 backlit LED buttons
• Database: 38,181 observables