Celestron NexStar 4 SE Computerised Telescope - 11049

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YA1600:27003419
£649.00
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Celestron’s signature orange-tube telescope combines advanced features and excellent optics in one easy-to-use system, the NexStar 4SE. It’s the perfect choice for your first serious telescope, offering striking views at an economical price.

Our Founder’s Vision, Reimagined for the 21st Century

In the 1970s, Celestron’s Schmidt-Cassegrain telescopes brought the hobby of astronomy to the masses and established Celestron as the world’s premier telescope maker. Our founder, Tom Johnson, invented Celestron’s proprietary method of producing Schmidt corrector plates for superior views and maximum portability. Johnson believed in creating high-quality optical instruments at an affordable price, and inspired a generation of amateur astronomers.

Four decades later, we’ve improved upon this design by adding cutting-edge features, while staying true to our founder’s intent.

View the Universe’s Most Impressive Celestial Objects

The 4SE’s four-inch primary mirror packs enough light-gathering ability to observe the best that the solar system has to offer: Saturn’s rings, the cloud bands on Jupiter, and geographic features on the surface of the Moon. When it comes to deep sky objects, take your 4SE to a dark-sky site and you’ll see hundreds of pinpoint stars in the Hercules Globular Cluster, the spiral arms of the Whirlpool Galaxy, and more.

Revolutionary Single Fork Arm Mount

We know the best telescope is the one you will use most often. That’s why Celestron’s engineers created NexStar SE’s unique, patented single fork arm mount. It’s perfectly portable and makes setup quick and easy. What’s more, the NexStar SE breaks down into several lightweight and compact pieces, making it easy to transport, even in small vehicles. You’ll have no problem getting the NexStar SE to your favorite observing site, or setting it up quickly in your backyard.

Of course, it’s what’s inside the mount that really counts. Sturdy construction from high-quality components give NexStar SE the pointing and tracking accuracy needed to observe and follow your favorite targets with push-button ease. Use the included NexStar+ hand control to locate over 40,000 celestial objects, or take a Sky Tour and let your telescope show you the best objects currently visible.

Aligning your telescope is simple and painless, too, thanks to SkyAlign. This process makes alignment as easy as 1-2-3: just center three bright objects in your eyepiece and press ALIGN. For even easier alignment, attach our StarSense AutoAlign and your NexStar SE aligns itself!

Advanced Features Let the NexStar SE Grow with You

The NexStar SE is compatible with all the high-tech accessories advanced users love. Provide GPS coordinates to your telescope with SkySync, or add automatic alignment functionality with StarSense AutoAlign.

Its built-in wedge allows you to track long exposures. if you’re interested in imaging the Moon and planets, pair your NexStar 4SE with one of our Skyris cameras. From your first observing session and for years to come, the NexStar SE is your trusted companion.

OPTICAL TUBE INFO:

Optical Design Maksutov-Cassegrain

Aperture 102mm (4.02")

Focal Length 1325mm (52")

Focal Ratio f/13

Focal Length of Eyepiece 25mm (0.98")

Magnification of Eyepiece 53x

Finderscope StarPointer

Star Diagonal Internal Flip mirror for straight thru or 90° viewing angle

Optical Tube Aluminum

Highest Useful Magnification 241x

Lowest Useful Magnification 15x

Limiting Stellar Magnitude 12.5

Resolution (Rayleigh) 1.37 arc seconds

Resolution (Dawes) 1.14 arc seconds

Light Gathering Power (Compared to human eye) 212x

Secondary Mirror Obstruction 35mm (.38")

Secondary Mirror Obstruction by Diameter 34%

Secondary Mirror Obstruction by Area 12%

Optical Coatings StarBright XLT

Optical Tube Length 343mm (13.5")

Optical Tube Diameter 125mm (4.9")

Optical Tube Weight 6 lbs (2.7 kg)

Dovetail Vixen / CG-5 Dovetail bar

MOUNT INFO:

Mount Type Computerized Altitude-Azimuth Single Fork Arm

Instrument load capacity 10 lbs (4.54 kg)

Height adjustment range (includes mount and tripod) 939.8mm - 2397mm (37" - 55")

Tripod leg diameter 50.8mm (2") Stainless Steel

Mount Head Weight 7 lbs (3.2 kg)

Accessory Tray Yes

Tripod Weight 10 lbs (4.54 kg)

Slew Speeds 9 slew speeds - max speed 3°/second

Tracking Rates Sidereal, Solar and Lunar

Tracking Modes Alt-Az, EQ North & EQ South

GPS N/A

Dovetail Compatibility Vixen / CG-5 dovetail

Number of Auxiliary ports 1x Aux port

Autoguide port No

USB port Yes, Hand Control input

Power Requirements 8-AA batteries (not included) | 12 VDC-750 mA (Tip positive)

Motor Drive DC servo motors

Alignment Procedures SkyAlign, 1-Star Align, 2-Star Align, Auto 2-Star Align, Solar System Align, EQ North / EQ South Alignment (EQ align requires an equatorial wedge)

Periodic Error Correction No

Computerized Hand Control Double line, 18 character Liquid Crystal Display with 19 fiber optic backlit LED buttons

NexStar+ Database 38,181 accessible objects. Enhanced information on over 200 objects.

Software Celestron's Starry Night Special Edition Software, SkyPortal App

Total Kit Weight 23 lbs (5 kg)

Included Items:

NexStar SE OTA

Single Fork Arm Mount

Tripod

Accessory Tray

Star Pointer Finderscope

Built-In Wedge

NexStar+ Hand Control

25mm eyepiece

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